Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    13/10/2026, 23:35

General

  • Target
    jaffacakes118_HEUR.Trojan.Win32.Generic.exe
  • Size 711KB
  • Sample261013-3k6epadw7n
  • SHA256 852ad16675052e84668684c88c20cf44257f598844d51bb5d3e01c94ab444b5e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • darkcomet

Botnet
  • Guest16

C2
  • halimaw15.zapto.org:81

Mutex
  • DC_MUTEX-HC4K7JR

Attributes
  • InstallPath

    common\GoogleUpdaterService.exe

  • gencode

    mRN.Zh.NC$mL

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    GoogleUpdaterService.exe

rc4.plain

Signatures

  • Family: Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies firewall policy service 3 TTPs 6 IoCs
  • Modifies security service 2 TTPs 2 IoCs
  • Windows security bypass 2 TTPs 4 IoCs
  • Checks BIOS information in registry 2 TTPs 3 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.

  • Executes dropped EXE 4 IoCs
  • Windows security modification 2 TTPs 4 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 12 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs
  • System policy modification 1 TTPs 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\jaffacakes118_HEUR.Trojan.Win32.Generic.exe
    "C:\Users\Admin\AppData\Local\Temp\jaffacakes118_HEUR.Trojan.Win32.Generic.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3900
    • C:\Users\Admin\AppData\Local\Temp\jaffacakes118_HEUR.Trojan.Win32.Generic.exe
      "C:\Users\Admin\AppData\Local\Temp\jaffacakes118_HEUR.Trojan.Win32.Generic.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Checks BIOS information in registry
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Enumerates system info in registry
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1172
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:2192
      • C:\Windows\SysWOW64\explorer.exe
        "C:\Windows\SysWOW64\explorer.exe"
        3⤵
          PID:2304
        • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\common\GoogleUpdaterService.exe
          "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\common\GoogleUpdaterService.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4608
          • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\common\GoogleUpdaterService.exe
            "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\common\GoogleUpdaterService.exe"
            4⤵
            • Modifies firewall policy service
            • Modifies security service
            • Windows security bypass
            • Checks BIOS information in registry
            • Executes dropped EXE
            • Windows security modification
            • System Location Discovery: System Language Discovery
            • Checks processor information in registry
            • Enumerates system info in registry
            • Suspicious use of AdjustPrivilegeToken
            • System policy modification
            PID:3020
    • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\common\GoogleUpdaterService.exe
      "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\common\GoogleUpdaterService.exe"
      1⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2788
      • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\common\GoogleUpdaterService.exe
        "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\common\GoogleUpdaterService.exe"
        2⤵
        • Modifies firewall policy service
        • Modifies security service
        • Windows security bypass
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Windows security modification
        • Reads the TCP/IP host and domain name from the registry
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        • System policy modification
        PID:208
        • C:\Windows\SysWOW64\notepad.exe
          C:\Windows\SysWOW64\notepad.exe
          3⤵
          • System Location Discovery: System Language Discovery
          PID:868

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          GoogleUpdaterService.exe

          • Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\common\GoogleUpdaterService.exe
          • Size 711KB
          • SHA256 852ad16675052e84668684c88c20cf44257f598844d51bb5d3e01c94ab444b5e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/208-86-0x0000000013140000-0x00000000131F7000-memory.dmp

          memory/208-89-0x0000000013140000-0x00000000131F7000-memory.dmp

          memory/208-90-0x0000000013140000-0x00000000131F7000-memory.dmp

          memory/208-91-0x0000000013140000-0x00000000131F7000-memory.dmp

          memory/208-80-0x0000000013140000-0x00000000131F7000-memory.dmp

          memory/868-88-0x0000000000C80000-0x0000000000C81000-memory.dmp

          memory/1172-8-0x00000000027D0000-0x00000000027D1000-memory.dmp

          memory/1172-4-0x0000000013140000-0x00000000131F7000-memory.dmp

          memory/1172-75-0x0000000013140000-0x00000000131F7000-memory.dmp

          memory/1172-7-0x0000000013140000-0x00000000131F7000-memory.dmp

          memory/1172-3-0x0000000013140000-0x00000000131F7000-memory.dmp

          memory/1172-6-0x0000000013140000-0x00000000131F7000-memory.dmp

          memory/2192-10-0x0000000000FB0000-0x0000000000FB1000-memory.dmp

          memory/2304-12-0x0000000000400000-0x000000000040E000-memory.dmp

          memory/2788-71-0x0000000000400000-0x000000000040E000-memory.dmp

          memory/2788-83-0x0000000000400000-0x000000000040E000-memory.dmp

          memory/3020-87-0x0000000013140000-0x00000000131F7000-memory.dmp

          memory/3020-92-0x0000000013140000-0x00000000131F7000-memory.dmp

          memory/3900-5-0x0000000000400000-0x000000000040E000-memory.dmp

          memory/3900-0-0x0000000000400000-0x000000000040E000-memory.dmp

          memory/4608-85-0x0000000000400000-0x000000000040E000-memory.dmp