Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/07/2024, 01:13

General

  • Target
    a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe
  • Size 1.9MB
  • Sample240702-blb4pavcjq
  • SHA256 a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • snakekeylogger

Credentials
  • Protocol

    smtp

  • Host

    valleycountysar.org

  • Port

    26

  • Password

    fY,FLoadtsiF

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).

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe
    "C:\Users\Admin\AppData\Local\Temp\a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3988
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
      2⤵
        PID:208
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
        2⤵
        • Checks computer location settings
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1392
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3928
          • C:\Windows\SysWOW64\choice.exe
            choice /C Y /N /D Y /T 3
            4⤵
              PID:3196
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
          2⤵
            PID:2492

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              memory/1392-4-0x0000000000400000-0x0000000000426000-memory.dmp

              memory/1392-5-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

              memory/1392-6-0x00000000057D0000-0x0000000005D74000-memory.dmp

              memory/1392-7-0x0000000005220000-0x00000000052BC000-memory.dmp

              memory/1392-8-0x0000000074DE0000-0x0000000075590000-memory.dmp

              memory/1392-11-0x0000000074DE0000-0x0000000075590000-memory.dmp

              memory/3988-0-0x000001EA2CC90000-0x000001EA2CC98000-memory.dmp

              memory/3988-1-0x00007FFDB32A3000-0x00007FFDB32A5000-memory.dmp

              memory/3988-2-0x000001EA2E7F0000-0x000001EA2E86A000-memory.dmp

              memory/3988-3-0x00007FFDB32A0000-0x00007FFDB3D61000-memory.dmp

              memory/3988-9-0x00007FFDB32A0000-0x00007FFDB3D61000-memory.dmp