Analysis

  • max time kernel
    87s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/09/2022, 09:21

General

  • Target
    PURCHASE ORDER.exe
  • Size 259KB
  • Sample220901-lbc84sddg9
  • SHA256 d98539d1fb32fb5aafb2c0e70069888e89984da0adeb9ae2cdecbd36f254dca1
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • snakekeylogger

Credentials
C2
  • https://api.telegram.org/bot5708078300:AAEFI-GQEmOXcZxhDq61-Uiq0tA6DEnImIM/sendMessage?chat_id=5760367742

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Drops startup file 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe
    "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4240
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
      "Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe'
      2⤵
      • Drops startup file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4884
    • C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe
      "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1248

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1248-149-0x0000000006AE0000-0x0000000006AEA000-memory.dmp

        memory/1248-148-0x0000000006B60000-0x0000000006D22000-memory.dmp

        memory/1248-143-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/4240-132-0x0000000000480000-0x00000000004C6000-memory.dmp

        memory/4240-133-0x00000000053D0000-0x0000000005974000-memory.dmp

        memory/4240-134-0x0000000004EC0000-0x0000000004F52000-memory.dmp

        memory/4240-135-0x0000000005040000-0x00000000050DC000-memory.dmp

        memory/4884-140-0x0000000005950000-0x00000000059B6000-memory.dmp

        memory/4884-141-0x0000000006080000-0x00000000060E6000-memory.dmp

        memory/4884-139-0x00000000057B0000-0x00000000057D2000-memory.dmp

        memory/4884-138-0x00000000059E0000-0x0000000006008000-memory.dmp

        memory/4884-144-0x0000000006910000-0x000000000692E000-memory.dmp

        memory/4884-145-0x0000000007A20000-0x0000000007AB6000-memory.dmp

        memory/4884-146-0x0000000007930000-0x000000000794A000-memory.dmp

        memory/4884-147-0x00000000079B0000-0x00000000079D2000-memory.dmp

        memory/4884-137-0x0000000002D70000-0x0000000002DA6000-memory.dmp