Analysis

  • max time kernel
    127s
  • max time network
    177s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    25/01/2022, 08:28

General

  • Target
    Profroma Invoice # 734739.exe
  • Size 747KB
  • Sample220125-kc1kcscbd6
  • SHA256 4caa0ca1608f5982bbedace751bde8798f481a68e44542f9c834d0774ad1e1e0
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • snakekeylogger

C2
  • https://api.telegram.org/bot5003449260:AAENtP4Tzr9My4Dh-x5IgX7-VIgy7oLFBMc/sendMessage?chat_id=5097728125

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 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Profroma Invoice # 734739.exe
    "C:\Users\Admin\AppData\Local\Temp\Profroma Invoice # 734739.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2152
    • C:\Users\Admin\AppData\Local\Temp\Profroma Invoice # 734739.exe
      "C:\Users\Admin\AppData\Local\Temp\Profroma Invoice # 734739.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:3576
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:3196

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/2152-118-0x0000000000D80000-0x0000000000E42000-memory.dmp

          memory/2152-119-0x0000000005CF0000-0x00000000061EE000-memory.dmp

          memory/2152-120-0x00000000056B0000-0x0000000005742000-memory.dmp

          memory/2152-121-0x0000000005610000-0x00000000056A2000-memory.dmp

          memory/2152-122-0x00000000056A0000-0x00000000056AA000-memory.dmp

          memory/2152-123-0x0000000007C20000-0x0000000007CBC000-memory.dmp

          memory/2152-124-0x0000000005CD0000-0x0000000005CDE000-memory.dmp

          memory/2152-125-0x000000007E350000-0x000000007E351000-memory.dmp

          memory/2152-126-0x0000000008050000-0x00000000080EC000-memory.dmp

          memory/3576-127-0x0000000000400000-0x0000000000426000-memory.dmp

          memory/3576-128-0x0000000005430000-0x000000000592E000-memory.dmp

          memory/3576-129-0x00000000067A0000-0x0000000006962000-memory.dmp