Analysis

  • max time kernel
    76s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/12/2022, 16:08

General

  • Target
    DRAFT PRE ALERT.exe
  • Size 1.0MB
  • Sample221213-tk8elsfa84
  • SHA256 03fd685f6762da376a437a4c98da717c491765d6b215a01d894517abfaeaf38a
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • snakekeylogger

C2
  • https://api.telegram.org/bot1644755040:AAGRTnph6BdO8-t1bJaOyVu9aeuJErmisqs/sendMessage?chat_id=1637651323

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.

  • 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.

  • Program crash 1 IoCs
  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DRAFT PRE ALERT.exe
    "C:\Users\Admin\AppData\Local\Temp\DRAFT PRE ALERT.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4244
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mxBrhwo" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDE3F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3132
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
        PID:3184
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "{path}"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2128
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2128 -s 1452
          3⤵
          • Program crash
          PID:3676
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 2128 -ip 2128
      1⤵
        PID:3064

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            tmpDE3F.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\tmpDE3F.tmp
            • Size 1KB
            • SHA256 016c35019b2fe5544a1f259502753152281c60ecb85b22e736f60cba580a9a65
            • MD5 SHA1 SHA512

            memory/2128-141-0x0000000000400000-0x0000000000426000-memory.dmp

            memory/4244-132-0x0000000000C80000-0x0000000000D88000-memory.dmp

            memory/4244-133-0x0000000005D10000-0x00000000062B4000-memory.dmp

            memory/4244-134-0x0000000005760000-0x00000000057F2000-memory.dmp

            memory/4244-135-0x0000000005800000-0x000000000589C000-memory.dmp

            memory/4244-136-0x00000000058E0000-0x00000000058EA000-memory.dmp