Analysis

  • max time kernel
    133s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    02/03/2022, 07:22

General

  • Target
    PI RVSD.exe
  • Size 1.0MB
  • Sample220302-h7bhlsfdel
  • SHA256 ae13fe36ae25d1c276ec9efaaa8599e186f9df2b2d742c7999b895fdf2d302d7
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • snakekeylogger

C2
  • https://api.telegram.org/bot5236802193:AAGUg2Jxtw69mUjDR6vxXk0chLrg5ZCWXvQ/sendMessage?chat_id=5169950779

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger Payload 1 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 3 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PI RVSD.exe
    "C:\Users\Admin\AppData\Local\Temp\PI RVSD.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1504
    • C:\Users\Admin\AppData\Local\Temp\PI RVSD.exe
      "C:\Users\Admin\AppData\Local\Temp\PI RVSD.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4324

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1504-130-0x0000000000E30000-0x0000000000F3C000-memory.dmp

        memory/1504-131-0x0000000005F10000-0x00000000064B4000-memory.dmp

        memory/1504-132-0x0000000005960000-0x00000000059F2000-memory.dmp

        memory/1504-133-0x0000000074F6E000-0x0000000074F6F000-memory.dmp

        memory/1504-134-0x00000000058F0000-0x00000000058FA000-memory.dmp

        memory/1504-135-0x0000000005920000-0x0000000005921000-memory.dmp

        memory/1504-136-0x0000000005E10000-0x0000000005EAC000-memory.dmp

        memory/4324-137-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/4324-139-0x0000000074F6E000-0x0000000074F6F000-memory.dmp

        memory/4324-140-0x0000000005480000-0x0000000005481000-memory.dmp

        memory/4324-141-0x00000000066C0000-0x0000000006882000-memory.dmp