Analysis

  • max time kernel
    91s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    17/06/2022, 05:59

General

  • Target
    AWB # 155-0367 2292INV Draft.exe
  • Size 416KB
  • Sample220617-gpqddadbe9
  • SHA256 3157ed4e95a67f7384eb75965c1db6c675d91a3e05eb4ef69d8eec6be032cf4d
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • snakekeylogger

Credentials

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger Payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\AWB # 155-0367 2292INV Draft.exe
    "C:\Users\Admin\AppData\Local\Temp\AWB # 155-0367 2292INV Draft.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2880
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TYZsXROuNU.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4088
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TYZsXROuNU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp540.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:384
    • C:\Users\Admin\AppData\Local\Temp\AWB # 155-0367 2292INV Draft.exe
      "C:\Users\Admin\AppData\Local\Temp\AWB # 155-0367 2292INV Draft.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3028

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        AWB # 155-0367 2292INV Draft.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\AWB # 155-0367 2292INV Draft.exe.log
        • Size 1KB
        • SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
        • MD5 SHA1 SHA512

        tmp540.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmp540.tmp
        • Size 1KB
        • SHA256 9fe90bffc85b743a7768e417d074c34ac8be60bc7a5111cbc710687f6663a95b
        • MD5 SHA1 SHA512

        memory/2880-131-0x0000000005070000-0x0000000005614000-memory.dmp

        memory/2880-132-0x0000000004AC0000-0x0000000004B52000-memory.dmp

        memory/2880-133-0x0000000004AA0000-0x0000000004AAA000-memory.dmp

        memory/2880-134-0x0000000007610000-0x00000000076AC000-memory.dmp

        memory/2880-130-0x00000000000A0000-0x0000000000108000-memory.dmp

        memory/3028-147-0x0000000006B70000-0x0000000006D32000-memory.dmp

        memory/3028-141-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/4088-144-0x0000000005840000-0x00000000058A6000-memory.dmp

        memory/4088-150-0x0000000006D00000-0x0000000006D1E000-memory.dmp

        memory/4088-143-0x00000000057A0000-0x00000000057C2000-memory.dmp

        memory/4088-137-0x0000000002E70000-0x0000000002EA6000-memory.dmp

        memory/4088-145-0x0000000005AA0000-0x0000000005B06000-memory.dmp

        memory/4088-146-0x0000000006760000-0x000000000677E000-memory.dmp

        memory/4088-148-0x0000000007710000-0x0000000007742000-memory.dmp

        memory/4088-149-0x0000000070D10000-0x0000000070D5C000-memory.dmp

        memory/4088-139-0x0000000005B20000-0x0000000006148000-memory.dmp

        memory/4088-151-0x00000000080B0000-0x000000000872A000-memory.dmp

        memory/4088-152-0x0000000007A60000-0x0000000007A7A000-memory.dmp

        memory/4088-153-0x0000000007AE0000-0x0000000007AEA000-memory.dmp

        memory/4088-154-0x0000000007CE0000-0x0000000007D76000-memory.dmp

        memory/4088-155-0x0000000007CA0000-0x0000000007CAE000-memory.dmp

        memory/4088-156-0x0000000007DA0000-0x0000000007DBA000-memory.dmp

        memory/4088-157-0x0000000007D90000-0x0000000007D98000-memory.dmp