Analysis

  • max time kernel
    216s
  • max time network
    232s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/11/2022, 15:24

General

  • Target

    237ffbd71f9fa5afe7de6b6801502614cc37c07797e01c2053bfafe9cffc895e.exe

  • Size

    936KB

  • MD5

    e2897ef6da452da4b7276443f4a5bb3f

  • SHA1

    556aee59e0e1db6a4ad7f5a3cc611ecf10b119d7

  • SHA256

    237ffbd71f9fa5afe7de6b6801502614cc37c07797e01c2053bfafe9cffc895e

  • SHA512

    150f5d44ea841e1fc53df850a727585e12d75bd9925e5e7dd71532bfd7b446a02103e8ff689180b1dc72401d1bde9ebd55774d0f423f13bc1c348feaee8fc1dd

  • SSDEEP

    24576:ldCf5l+hpoq2iHU/0PdIT0TmsIoiQTqxHfcL9rE7CAjvM:3Cf5l+hpoq2iO0lITcILk8cL947C

Malware Config

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • 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 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 8 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 57 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\237ffbd71f9fa5afe7de6b6801502614cc37c07797e01c2053bfafe9cffc895e.exe
    "C:\Users\Admin\AppData\Local\Temp\237ffbd71f9fa5afe7de6b6801502614cc37c07797e01c2053bfafe9cffc895e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3136
    • C:\Users\Admin\AppData\Local\Temp\237ffbd71f9fa5afe7de6b6801502614cc37c07797e01c2053bfafe9cffc895e.exe
      "C:\Users\Admin\AppData\Local\Temp\237ffbd71f9fa5afe7de6b6801502614cc37c07797e01c2053bfafe9cffc895e.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Checks BIOS information in registry
      • Checks computer location settings
      • Adds Run key to start application
      • Checks processor information in registry
      • Enumerates system info in registry
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4056
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • Adds Run key to start application
        PID:2860
      • C:\Windows\SysWOW64\explorer.exe
        "C:\Windows\SysWOW64\explorer.exe"
        3⤵
          PID:2092
        • C:\Program Filez\ZSoft\service.exe
          "C:\Program Filez\ZSoft\service.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4824
          • C:\Program Filez\ZSoft\service.exe
            "C:\Program Filez\ZSoft\service.exe"
            4⤵
            • Executes dropped EXE
            • Checks BIOS information in registry
            • Checks processor information in registry
            • Enumerates system info in registry
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:4376

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Program Filez\ZSoft\service.exe

      Filesize

      936KB

      MD5

      e2897ef6da452da4b7276443f4a5bb3f

      SHA1

      556aee59e0e1db6a4ad7f5a3cc611ecf10b119d7

      SHA256

      237ffbd71f9fa5afe7de6b6801502614cc37c07797e01c2053bfafe9cffc895e

      SHA512

      150f5d44ea841e1fc53df850a727585e12d75bd9925e5e7dd71532bfd7b446a02103e8ff689180b1dc72401d1bde9ebd55774d0f423f13bc1c348feaee8fc1dd

    • C:\Program Filez\ZSoft\service.exe

      Filesize

      936KB

      MD5

      e2897ef6da452da4b7276443f4a5bb3f

      SHA1

      556aee59e0e1db6a4ad7f5a3cc611ecf10b119d7

      SHA256

      237ffbd71f9fa5afe7de6b6801502614cc37c07797e01c2053bfafe9cffc895e

      SHA512

      150f5d44ea841e1fc53df850a727585e12d75bd9925e5e7dd71532bfd7b446a02103e8ff689180b1dc72401d1bde9ebd55774d0f423f13bc1c348feaee8fc1dd

    • C:\Program Filez\ZSoft\service.exe

      Filesize

      936KB

      MD5

      e2897ef6da452da4b7276443f4a5bb3f

      SHA1

      556aee59e0e1db6a4ad7f5a3cc611ecf10b119d7

      SHA256

      237ffbd71f9fa5afe7de6b6801502614cc37c07797e01c2053bfafe9cffc895e

      SHA512

      150f5d44ea841e1fc53df850a727585e12d75bd9925e5e7dd71532bfd7b446a02103e8ff689180b1dc72401d1bde9ebd55774d0f423f13bc1c348feaee8fc1dd

    • memory/4056-138-0x0000000013140000-0x00000000131F6000-memory.dmp

      Filesize

      728KB

    • memory/4056-135-0x0000000013140000-0x00000000131F6000-memory.dmp

      Filesize

      728KB

    • memory/4056-141-0x0000000013140000-0x00000000131F6000-memory.dmp

      Filesize

      728KB

    • memory/4056-137-0x0000000013140000-0x00000000131F6000-memory.dmp

      Filesize

      728KB

    • memory/4056-136-0x0000000013140000-0x00000000131F6000-memory.dmp

      Filesize

      728KB

    • memory/4376-151-0x0000000013140000-0x00000000131F6000-memory.dmp

      Filesize

      728KB

    • memory/4376-152-0x0000000013140000-0x00000000131F6000-memory.dmp

      Filesize

      728KB