Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-12-2024 06:09

General

  • Target

    bc0e2e5ffa048dc7ed2330b9bf0ce717_JaffaCakes118.exe

  • Size

    292KB

  • MD5

    bc0e2e5ffa048dc7ed2330b9bf0ce717

  • SHA1

    9d7f04d2fc307375f498cb247f56b5459eef2680

  • SHA256

    a18b0e487d18d6656384d5b1039a4d0db4203669789a0e45c894e7675201cc18

  • SHA512

    71d98552e118189f1773f9bbc7d28d5f9fcb29a59aa6503293b59f1846ef4a37ef7de8cd1f44c9014025b771d51fe50e35e430009c1ed48ccd8c20d0a3f4ba42

  • SSDEEP

    6144:KXtV28NQJMCgnrEOjR5suI1PIRYhaZKicXBb+9w9soyKz88ELUgy:KD28NQJb4EOjR5Fk3Bbfzy2ELHy

Malware Config

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 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.

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • UPX packed file 15 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • 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
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bc0e2e5ffa048dc7ed2330b9bf0ce717_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\bc0e2e5ffa048dc7ed2330b9bf0ce717_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2088
    • C:\Users\Admin\AppData\Local\Temp\bc0e2e5ffa048dc7ed2330b9bf0ce717_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\bc0e2e5ffa048dc7ed2330b9bf0ce717_JaffaCakes118.exe
      2⤵
      • Modifies WinLogon for persistence
      • Checks BIOS information in registry
      • Checks computer location settings
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1356
      • C:\Windupdt\winupdate.exe
        "C:\Windupdt\winupdate.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4180
        • C:\Windupdt\winupdate.exe
          C:\Windupdt\winupdate.exe
          4⤵
          • Checks BIOS information in registry
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:32
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4180 -s 384
          4⤵
          • Program crash
          PID:3244
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4180 -s 436
          4⤵
          • Program crash
          PID:4060
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\_dcsc_.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1848
        • C:\Windows\SysWOW64\PING.EXE
          ping 127.0.0.1 -n 2
          4⤵
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:2144
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2088 -s 376
      2⤵
      • Program crash
      PID:2620
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2088 -s 432
      2⤵
      • Program crash
      PID:3792
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2088 -ip 2088
    1⤵
      PID:2920
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2088 -ip 2088
      1⤵
        PID:2284
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4180 -ip 4180
        1⤵
          PID:1292
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 4180 -ip 4180
          1⤵
            PID:1100

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\_dcsc_.bat

            Filesize

            119B

            MD5

            e33e7e2294a056a1d11f0a05bd47d349

            SHA1

            328f41ab70b45b0dff1006d515b8718b6eacad97

            SHA256

            7338a60e6d9049cae5d4c3a62a4e02080ded85591690a0215eee787c12e1e78a

            SHA512

            c5f0170e4b114bf00170810434848839e3193e35f862457a9ad8527a2144914a88b74840a6360614281a1a949eb4dc4087960898a9d44dab7a07ee45e21a830b

          • C:\Windupdt\winupdate.exe

            Filesize

            292KB

            MD5

            bc0e2e5ffa048dc7ed2330b9bf0ce717

            SHA1

            9d7f04d2fc307375f498cb247f56b5459eef2680

            SHA256

            a18b0e487d18d6656384d5b1039a4d0db4203669789a0e45c894e7675201cc18

            SHA512

            71d98552e118189f1773f9bbc7d28d5f9fcb29a59aa6503293b59f1846ef4a37ef7de8cd1f44c9014025b771d51fe50e35e430009c1ed48ccd8c20d0a3f4ba42

          • memory/32-27-0x0000000000400000-0x00000000004C5000-memory.dmp

            Filesize

            788KB

          • memory/32-30-0x0000000000400000-0x00000000004C5000-memory.dmp

            Filesize

            788KB

          • memory/32-31-0x0000000000400000-0x00000000004C5000-memory.dmp

            Filesize

            788KB

          • memory/32-32-0x0000000000400000-0x00000000004C5000-memory.dmp

            Filesize

            788KB

          • memory/32-33-0x0000000000400000-0x00000000004C5000-memory.dmp

            Filesize

            788KB

          • memory/32-29-0x0000000000400000-0x00000000004C5000-memory.dmp

            Filesize

            788KB

          • memory/32-26-0x0000000000400000-0x00000000004C5000-memory.dmp

            Filesize

            788KB

          • memory/32-28-0x0000000000400000-0x00000000004C5000-memory.dmp

            Filesize

            788KB

          • memory/1356-4-0x0000000000400000-0x00000000004C5000-memory.dmp

            Filesize

            788KB

          • memory/1356-20-0x0000000000400000-0x00000000004C5000-memory.dmp

            Filesize

            788KB

          • memory/1356-6-0x0000000000400000-0x00000000004C5000-memory.dmp

            Filesize

            788KB

          • memory/1356-0-0x0000000000400000-0x00000000004C5000-memory.dmp

            Filesize

            788KB

          • memory/1356-5-0x0000000000700000-0x0000000000701000-memory.dmp

            Filesize

            4KB

          • memory/1356-3-0x0000000000400000-0x00000000004C5000-memory.dmp

            Filesize

            788KB

          • memory/1356-2-0x0000000000400000-0x00000000004C5000-memory.dmp

            Filesize

            788KB

          • memory/1356-1-0x0000000000400000-0x00000000004C5000-memory.dmp

            Filesize

            788KB

          • memory/2088-22-0x0000000010000000-0x000000001000D000-memory.dmp

            Filesize

            52KB

          • memory/4180-34-0x0000000010000000-0x000000001000D000-memory.dmp

            Filesize

            52KB