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TrojanSpy.Win32.EMOTET.SMA

January 29, 2021
 Analysis by: Angelo Junio
 ALIASES:

Trojan-Banker.Win32.Emotet.cuor (KASPERSKY)

 PLATFORM:

Windows

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

  • Threat Type: Trojan Spy

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet


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

  TECHNICAL DETAILS

File Size:

176,904 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

10 Nov 2020

Payload:

Connects to URLs/IPs

Arrival Details

This Trojan Spy 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 Trojan Spy drops a copy of itself in the following folders using different file names:

  • %System%\randomslide.exe -> if executed with administrative rights
  • %AppDataLocal%\randomslide.exe -> if executed without administrative rights

(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.. %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

It adds the following processes:

  • %System%\randomslide.exe -> if executed with administrative rights
  • %AppDataLocal%\randomslide.exe -> if executed without administrative rights

(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.. %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

Autostart Technique

This Trojan Spy starts the following services:

  • ServiceName = randomslide
    • DisplayName = randomslide
    • Path = %System%\randomslide.exe

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

Information Theft

This Trojan Spy gathers the following data:

  • Computer Name
  • Drive Information
  • Processor Architecture
  • Number of Processors
  • Processor Type
  • Windows Directory

Stolen Information

This Trojan Spy sends the gathered information via HTTP POST to the following URL:

  • http://{BLOCKED]}.{BLOCKED}.133.7/ringin/jit/img/
  • http://{BLOCKED]}.{BLOCKED}6.135.119/srvc/
  • http://{BLOCKED}.{BLOCKED}.237.174/jit/
  • http://{BLOCKED}.{BLOCKED}.191.12/merge/forced/img/merge/
  • http://{BLOCKED}.{BLOCKED}.106.225/odbc/add/stubs/merge/
  • http://{BLOCKED}.{BLOCKED}.156.30/vermont/img/img/merge/
  • http://{BLOCKED}.{BLOCKED}.140.110/window/splash/img/merge/
  • http://{BLOCKED}.{BLOCKED}.210.39/arizona/srvc/
  • http://{BLOCKED}.{BLOCKED}.125.212/health/
  • http://{BLOCKED}.{BLOCKED}.210.191/publish/report/
  • http://{BLOCKED]}.{BLOCKED}.130.148/enable/srvc/
  • http://{BLOCKED]}.{BLOCKED}.138.82/enabled/rtm/
  • http://{BLOCKED]}.{BLOCKED}.234.27/guids/entries/img/merge/
  • http://{BLOCKED}.{BLOCKED}.36.129/acquire/scripts/stubs/merge/
  • http://{BLOCKED}.{BLOCKED}.218.69/prep/
  • http://{BLOCKED}.{BLOCKED}.110.239/between/mult/img/
  • http://{BLOCKED}.{BLOCKED}.26.2/usbccid/bml/stubs/merge/
  • http://{BLOCKED}.{BLOCKED}.186.116/psec/rtm/img/merge/
  • http://{BLOCKED}.{BLOCKED}.153.249/health/odbc/stubs/
  • http://{BLOCKED}.{BLOCKED}.237.47/chunk/sess/img/merge/
  • http://{BLOCKED}.{BLOCKED}.219.241/pnp/
  • http://{BLOCKED}.{BLOCKED}.64.25/enable/publish/img/merge/
  • http://{BLOCKED}.{BLOCKED}.241.239/badge/
  • http://{BLOCKED}.{BLOCKED}.152.101/scripts/between/
  • http://{BLOCKED}.{BLOCKED}.95.82/window/acquire/img/merge/
  • http://{BLOCKED}.{BLOCKED}.71.72/attrib/
  • http://{BLOCKED}.{BLOCKED}.106.160/arizona/
  • http://{BLOCKED}.{BLOCKED}.84.98/badge/teapot/stubs/merge/
  • http://{BLOCKED}.{BLOCKED}.218.229/usbccid/dma/
  • http://{BLOCKED}.{BLOCKED}.252.121/prov/glitch/
  • http://{BLOCKED}.{BLOCKED}.243.107/report/attrib/stubs/
  • http://{BLOCKED}.{BLOCKED}.3.54/codec/symbols/stubs/
  • http://{BLOCKED}.{BLOCKED}.49.124/arizona/
  • http://{BLOCKED}.{BLOCKED}.147.179/symbols/
  • http://{BLOCKED}.{BLOCKED}.136.225/free/
  • http://{BLOCKED}.{BLOCKED}.0.160/scripts/splash/stubs/merge/
  • http://{BLOCKED}.{BLOCKED}.225.150/codec/badge/stubs/
  • http://{BLOCKED}.{BLOCKED}.149.117/child/forced/img/
  • http://{BLOCKED}.{BLOCKED}.17.7/site/
  • http://{BLOCKED}.{BLOCKED}.82.196/taskbar/iplk/
  • http://{BLOCKED}.{BLOCKED}.5.109/scripts/stubs/stubs/merge/
  • http://{BLOCKED}.{BLOCKED}.80.67/srvc/devices/stubs/
  • http://{BLOCKED}.{BLOCKED}.59.244/psec/guids/
  • http://{BLOCKED}.{BLOCKED}.139.101/xian/schema/img/
  • http://{BLOCKED}.{BLOCKED}.101.154/teapot/site/img/
  • http://{BLOCKED}.{BLOCKED}.200.114/tlb/schema/stubs/merge/
  • http://{BLOCKED}.{BLOCKED}.43.213/rtm/codec/
  • http://{BLOCKED}.{BLOCKED}.189.34/merge/report/
  • http://{BLOCKED}.{BLOCKED}.191.13/report/badge/stubs/

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

14.974.05

FIRST VSAPI PATTERN DATE:

02 May 2019

VSAPI OPR PATTERN File:

14.975.00

VSAPI OPR PATTERN Date:

03 May 2019

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.XXPE50FFF029

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

Restart in Safe Mode

[ Learn More ]

Step 5

Disable this malware service

[ Learn More ]
    • randomslide

Step 6

Search and delete these files

[ 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.
  • %System%\randomslide.exe
  • %AppDataLocal%\randomslide.exe

Step 7

Restart in normal mode and scan your computer with your Trend Micro product for files detected as TrojanSpy.Win32.EMOTET.SMA. 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 this Knowledge Base page for more information.


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