Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220331-en
  • submitted
    07/04/2022, 08:46

General

  • Target
    af776fc957e51c8846258b4d8004e1a1.exe
  • Size 627KB
  • Sample220407-kpavgadhc2
  • SHA256 dfb278405d6f2c0795936304f4c8d2e572be0d2699477d5b68b4fcff67f9bf42
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • DarkTrack

    DarkTrack is a remote administration tool written in delphi.

  • DarkTrack Payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\af776fc957e51c8846258b4d8004e1a1.exe
    "C:\Users\Admin\AppData\Local\Temp\af776fc957e51c8846258b4d8004e1a1.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2084
    • C:\Windows\SysWOW64\notepad.exe
      notepad
      2⤵
        PID:2684
      • C:\Users\Admin\AppData\Roaming\srvhost.exe
        "C:\Users\Admin\AppData\Roaming\srvhost.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of WriteProcessMemory
        PID:3092
        • C:\Windows\SysWOW64\notepad.exe
          notepad
          3⤵
            PID:4672
          • C:\Windows\SysWOW64\notepad.exe
            notepad
            3⤵
            • Adds Run key to start application
            PID:968

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            srvhost.exe

            • Path C:\Users\Admin\AppData\Roaming\srvhost.exe
            • Size 627KB
            • SHA256 dfb278405d6f2c0795936304f4c8d2e572be0d2699477d5b68b4fcff67f9bf42
            • MD5 SHA1 SHA512 SSDEEP

            srvhost.exe

            • Path C:\Users\Admin\AppData\Roaming\srvhost.exe
            • Size 627KB
            • SHA256 dfb278405d6f2c0795936304f4c8d2e572be0d2699477d5b68b4fcff67f9bf42
            • MD5 SHA1 SHA512 SSDEEP