Analysis by: Neljorn Nathaniel Aguas
ALIASES:

AdWare.Win32.DealPly.mycu (KASPERSKY)

 PLATFORM:

Windows

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

  • Threat Type: Adware

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel: Downloaded from the Internet, Dropped by other malware

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

It does not have any propagation routine.

It does not have any backdoor routine.

However, as of this writing, the said sites are inaccessible.

  TECHNICAL DETAILS

File Size: 1,048,576 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 16 Oct 2023
Payload: Connects to URLs/IPs, Displays windows

Arrival Details

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

Installation

This Adware drops the following files:

  • %User Temp%\ish{Random Numbers}\images\close_button.png
  • %User Temp%\ish{Random Numbers}\images\finish-button.png
  • %User Temp%\ish{Random Numbers}\images\finish_button.jpg
  • %User Temp%\ish{Random Numbers}\images\icon.png
  • %User Temp%\ish{Random Numbers}\images\loader.gif
  • %User Temp%\ish{Random Numbers}\images\next-button-over.png
  • %User Temp%\ish{Random Numbers}\images\next-button.png
  • %User Temp%\ish{Random Numbers}\images\progress-bg.png
  • %User Temp%\ish{Random Numbers}\images\skip-button.png
  • %User Temp%\ish{Random Numbers}\images\Software.png
  • %User Temp%\ish{Random Numbers}\license.txt
  • %User Temp%\ish{Random Numbers}\locale\EN.locale
  • %User Temp%\ish{Random Numbers}\sdk\exceptlist.txt
  • %User Temp%\ish{Random Numbers}\sdk\jsdoc-gen.cmd
  • %User Temp%\ish{Random Numbers}\sdk\version-history.txt
  • %User Temp%\ish{Random Numbers}\bootstrap_[Random Numbers}.html
  • %Program Files%\is{Random Numbers}.log
  • %User Temp%\{Random Hex}.log
  • %User Temp%\ish{Random Numbers}\{Random Numbers}.cfg
  • %User Temp%\ish{Random Numbers}\{Random Numbers}_Setup.CIS

(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).. %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000(32-bit), Server 2003(32-bit), XP, Vista(64-bit), 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit) , or C:\Program Files (x86) in Windows XP(64-bit), Vista(64-bit), 7(64-bit), 8(64-bit), 8.1(64-bit), 2008(64-bit), 2012(64-bit) and 10(64-bit).)

Other System Modifications

This Adware adds the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Tracing\{Malware Name}_RASAPI32
EnableFileTracing = 0

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Tracing\{Malware Name}_RASAPI32
EnableConsoleTracing = 0

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Tracing\{Malware Name}_RASAPI32
FileTracingMask = 4294901760

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Tracing\{Malware Name}_RASAPI32
ConsoleTracingMask = 4294901760

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Tracing\{Malware Name}_RASAPI32
MaxFileSize = 1048576

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Tracing\{Malware Name}_RASAPI32
FileDirectory = %windir%\tracing

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Tracing\{Malware Name}_RASMANCS
EnableFileTracing = 0

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Tracing\{Malware Name}_RASMANCS
EnableConsoleTracing = 0

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Tracing\{Malware Name}_RASMANCS
FileTracingMask = 4294901760

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Tracing\{Malware Name}_RASMANCS
ConsoleTracingMask = 4294901760

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Tracing\{Malware Name}_RASMANCS
MaxFileSize = 1048576

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Tracing\{Malware Name}_RASMANCS
FileDirectory = %windir%\tracing

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
DirectDraw\MostRecentApplication
Name = {Malware File Name}

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
DirectDraw\MostRecentApplication
ID = 708992537

Propagation

This Adware does not have any propagation routine.

Backdoor Routine

This Adware does not have any backdoor routine.

Rootkit Capabilities

This Adware does not have rootkit capabilities.

Download Routine

This Adware connects to the following URL(s) to download its component file(s):

  • http://{BLOCKED}efile.com/fx/v1.0.1/
  • http://{BLOCKED}efile.com/?pcrc=1387792642
  • http://{BLOCKED}rammersupply.com/cgi-bin/utils/IP2CC.psc
  • http://{BLOCKED}olvefile.com/Prod/3GPConverter-v2.cis
  • http://{BLOCKED}olvefile.com/Prod/3GPConverter-v2.cis
  • http://{BLOCKED}olvefile.com/ofr/BabylonToolbarV2.cis
  • http://{BLOCKED}olvefile.com/ofr/BabylonToolbarV2.cis

Other Details

This Adware does the following:

  • It displays the following GUI to install the FoxTab 3GP Converter:
  • It shows pre-populated checkboxes to install Babylon toolbar and modify browser settings:
  • It displays a message box prompting the user to connect to the Internet to download component files during installation:

However, as of this writing, the said sites are inaccessible.

It does not exploit any vulnerability.

  SOLUTION

Minimum Scan Engine: 9.800
SSAPI PATTERN File: 2.669.00
SSAPI PATTERN Date: 26 Oct 2023

Step 1

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 2

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 3

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\SOFTWARE\Microsoft\Tracing\{Malware Name}_RASAPI32
    • EnableFileTracing = 0
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\{Malware Name}_RASAPI32
    • EnableConsoleTracing = 0
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\{Malware Name}_RASAPI32
    • FileTracingMask = 4294901760
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\{Malware Name}_RASAPI32
    • ConsoleTracingMask = 4294901760
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\{Malware Name}_RASAPI32
    • MaxFileSize = 1048576
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\{Malware Name}_RASAPI32
    • FileDirectory = %windir%\tracing
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\{Malware Name}_RASMANCS
    • EnableFileTracing = 0
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\{Malware Name}_RASMANCS
    • EnableConsoleTracing = 0
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\{Malware Name}_RASMANCS
    • FileTracingMask = 4294901760
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\{Malware Name}_RASMANCS
    • ConsoleTracingMask = 4294901760
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\{Malware Name}_RASMANCS
    • MaxFileSize = 1048576
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\{Malware Name}_RASMANCS
    • FileDirectory = %windir%\tracing
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\DirectDraw\MostRecentApplication
    • Name = {Malware File Name}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\DirectDraw\MostRecentApplication
    • ID = 708992537

Step 4

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\SOFTWARE\Microsoft\Tracing\
    • {Malware Name}_RASAPI32
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\
    • {Malware Name}_RASMANCS
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\DirectDraw\
    • MostRecentApplication
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
    • DirectDraw

Step 5

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%\ish{Random Numbers}\images\close_button.png
  • %User Temp%\ish{Random Numbers}\images\finish-button.png
  • %User Temp%\ish{Random Numbers}\images\finish_button.jpg
  • %User Temp%\ish{Random Numbers}\images\icon.png
  • %User Temp%\ish{Random Numbers}\images\loader.gif
  • %User Temp%\ish{Random Numbers}\images\next-button-over.png
  • %User Temp%\ish{Random Numbers}\images\next-button.png
  • %User Temp%\ish{Random Numbers}\images\progress-bg.png
  • %User Temp%\ish{Random Numbers}\images\skip-button.png
  • %User Temp%\ish{Random Numbers}\images\Software.png
  • %User Temp%\ish{Random Numbers}\license.txt
  • %User Temp%\ish{Random Numbers}\locale\EN.locale
  • %User Temp%\ish{Random Numbers}\sdk\exceptlist.txt
  • %User Temp%\ish{Random Numbers}\sdk\jsdoc-gen.cmd
  • %User Temp%\ish{Random Numbers}\sdk\version-history.txt
  • %User Temp%\ish{Random Numbers}\bootstrap_[Random Numbers}.html
  • %Program Files%\is{Random Numbers}.log
  • %User Temp%\{Random Hex}.log
  • %User Temp%\is{Random Numbers}\{Random Numbers}.cfg
  • %User Temp%\is{Random Numbers}\{Random Numbers}_Setup.CIS

Step 6

Search and delete these folders

[ Learn More ]
Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result.
  • %User Temp%\ish{Random Numbers}\images
  • %User Temp%\ish{Random Numbers}\locale
  • %User Temp%\ish{Random Numbers}\sdk
  • %User Temp%\ish{Random Numbers}

Step 7

Scan your computer with your Trend Micro product to delete files detected as Adware.Win32.Installcore.TIQVCF. 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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