Analysis

  • max time kernel
    141s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-11-2024 22:57

General

  • Target

    8de865647d2cdfff8f15a2f66da4cf96_JaffaCakes118.exe

  • Size

    1.5MB

  • MD5

    8de865647d2cdfff8f15a2f66da4cf96

  • SHA1

    379b9c86d30691d683353a039352bb763e160f49

  • SHA256

    ce3b8c803e3f620ab6a4fe0448b87102e4578713b1355e0359f8e6243caeff66

  • SHA512

    4f1f3d097f521d8cc3f94c6c38a6d7ad8eda53be804407a106da404961a8a14a35b1b0bf204e8f052bd72fe7397483fa94b69b80b7bac61f0965ad23b5c52af2

  • SSDEEP

    24576:mgdX4AEE3uBDhynCylQgi63O9+VuNY3WSxLNO3KCxZyNfF3tvYTJ:h4AE3JX63OMha66qD6

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
  • Modifies firewall policy service 3 TTPs 3 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 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.

  • Executes dropped EXE 1 IoCs
  • Windows security modification 2 TTPs 2 IoCs
  • 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).

  • Program crash 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 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
  • Modifies registry class 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8de865647d2cdfff8f15a2f66da4cf96_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\8de865647d2cdfff8f15a2f66da4cf96_JaffaCakes118.exe"
    1⤵
    • 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
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:112
    • C:\Windupdt\winupdate.exe
      "C:\Windupdt\winupdate.exe"
      2⤵
      • 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 behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:436
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 436 -s 1540
        3⤵
        • Program crash
        PID:5100
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 436 -s 1540
        3⤵
        • Program crash
        PID:2424
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 436 -s 1548
        3⤵
        • Program crash
        PID:4464
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\_dcsc_.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3124
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:3992
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 436 -ip 436
    1⤵
      PID:232
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 436 -ip 436
      1⤵
        PID:3064
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 436 -ip 436
        1⤵
          PID:4912

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          119B

          MD5

          999315918b148faa52a07dde1e826234

          SHA1

          1ea2e2b660c46f0d53a514f867364db7624f1544

          SHA256

          1d64ce8e3458942ab0cba94b7a1584e710ac0f60c8c8ebfd6297ca63afeded69

          SHA512

          83dae6ea9a1836d37f5aec6254224be598645fe6c41e97ecc80f42cf9bc7862035db35513d9b51c141eaeb25ebd7a4b92675fa093c78daf2249341243d9b06e7

        • C:\Windupdt\winupdate.exe

          Filesize

          1.5MB

          MD5

          8de865647d2cdfff8f15a2f66da4cf96

          SHA1

          379b9c86d30691d683353a039352bb763e160f49

          SHA256

          ce3b8c803e3f620ab6a4fe0448b87102e4578713b1355e0359f8e6243caeff66

          SHA512

          4f1f3d097f521d8cc3f94c6c38a6d7ad8eda53be804407a106da404961a8a14a35b1b0bf204e8f052bd72fe7397483fa94b69b80b7bac61f0965ad23b5c52af2

        • memory/112-8-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/112-1-0x00000000027A0000-0x00000000027E7000-memory.dmp

          Filesize

          284KB

        • memory/112-61-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/112-6-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/112-5-0x0000000002400000-0x0000000002401000-memory.dmp

          Filesize

          4KB

        • memory/112-2-0x00000000027A0000-0x00000000027E7000-memory.dmp

          Filesize

          284KB

        • memory/112-0-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/112-11-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/112-9-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/112-10-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/112-12-0x000000000049E000-0x00000000004A0000-memory.dmp

          Filesize

          8KB

        • memory/112-13-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/112-16-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/112-4-0x0000000002440000-0x0000000002445000-memory.dmp

          Filesize

          20KB

        • memory/112-7-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/112-62-0x00000000027A0000-0x00000000027E7000-memory.dmp

          Filesize

          284KB

        • memory/112-3-0x0000000002420000-0x000000000242F000-memory.dmp

          Filesize

          60KB

        • memory/436-54-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/436-49-0x00000000021A0000-0x00000000021E7000-memory.dmp

          Filesize

          284KB

        • memory/436-63-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/436-56-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/436-55-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/436-58-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/436-71-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/436-57-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/436-67-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/436-66-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/436-65-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/436-68-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/436-69-0x00000000021A0000-0x00000000021E7000-memory.dmp

          Filesize

          284KB

        • memory/436-50-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB