Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    15-12-2024 03:03

General

  • Target

    f1fba390156ecf5fd54a788ce6014017_JaffaCakes118.exe

  • Size

    443KB

  • MD5

    f1fba390156ecf5fd54a788ce6014017

  • SHA1

    52f0f84f2a3c3e749a748a2a3e5532eff7500463

  • SHA256

    f004d8af06d317be8c725af9f0a0b07ad8e7232da8d96d95e773b8e28e6acfec

  • SHA512

    b4c91fffcb0d88012799b6f880cfe2ee82b2a632cab0370285a6751b0df4ab3bbd67fa8c588689ab01f65250a9e45074ad7bb411ec5deee26e66eeac31ab041d

  • SSDEEP

    6144:0CJUBApDw9gDsBhMKA72UYI1W82cODU/3SZwmLRlHzX5ljFJlh2t:0ZBMDw9RBaKcXsinq/lZ32t

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
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • UPX packed file 21 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).

  • System Location Discovery: System Language Discovery 1 TTPs 12 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 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f1fba390156ecf5fd54a788ce6014017_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f1fba390156ecf5fd54a788ce6014017_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2156
    • C:\Users\Admin\AppData\Local\Temp\f1fba390156ecf5fd54a788ce6014017_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\f1fba390156ecf5fd54a788ce6014017_JaffaCakes118.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2000
      • C:\Users\Admin\AppData\Local\Temp\f1fba390156ecf5fd54a788ce6014017_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\f1fba390156ecf5fd54a788ce6014017_JaffaCakes118.exe"
        3⤵
        • Modifies WinLogon for persistence
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1284
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\f1fba390156ecf5fd54a788ce6014017_JaffaCakes118.exe" +s +h
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2896
          • C:\Windows\SysWOW64\attrib.exe
            attrib "C:\Users\Admin\AppData\Local\Temp\f1fba390156ecf5fd54a788ce6014017_JaffaCakes118.exe" +s +h
            5⤵
            • Sets file to hidden
            • System Location Discovery: System Language Discovery
            • Views/modifies file attributes
            PID:2764
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2836
          • C:\Windows\SysWOW64\attrib.exe
            attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
            5⤵
            • Sets file to hidden
            • System Location Discovery: System Language Discovery
            • Views/modifies file attributes
            PID:2028
        • C:\driver\webloader.exe
          "C:\driver\webloader.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2660
          • C:\driver\webloader.exe
            "C:\driver\webloader.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2620
            • C:\driver\webloader.exe
              "C:\driver\webloader.exe"
              6⤵
              • Executes dropped EXE
              • Adds Run key to start application
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of SetWindowsHookEx
              PID:2792
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 5 > NUL&del "C:\Users\Admin\AppData\Local\Temp\f1fba390156ecf5fd54a788ce6014017_JaffaCakes118.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Internet Connection Discovery
          • Suspicious use of WriteProcessMemory
          PID:2624
          • C:\Windows\SysWOW64\PING.EXE
            ping 127.0.0.1 -n 5
            5⤵
            • System Location Discovery: System Language Discovery
            • System Network Configuration Discovery: Internet Connection Discovery
            • Runs ping.exe
            PID:3056

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\driver\webloader.exe

    Filesize

    443KB

    MD5

    f1fba390156ecf5fd54a788ce6014017

    SHA1

    52f0f84f2a3c3e749a748a2a3e5532eff7500463

    SHA256

    f004d8af06d317be8c725af9f0a0b07ad8e7232da8d96d95e773b8e28e6acfec

    SHA512

    b4c91fffcb0d88012799b6f880cfe2ee82b2a632cab0370285a6751b0df4ab3bbd67fa8c588689ab01f65250a9e45074ad7bb411ec5deee26e66eeac31ab041d

  • \Users\Admin\AppData\Local\Temp\d4ld8ld4ha4tM4afD.tmp

    Filesize

    3KB

    MD5

    38d772c709a466b033975fe42fd3889f

    SHA1

    9c8f5690bd11ddefa36a3566bc19c50d07392f4a

    SHA256

    2c8e8f06744c8a3de87b37ce22c3e8a3625adcb51ee3daa8084f97f243646c42

    SHA512

    e303f8689703a9dba74b614f134db591dc9787532b708be48604d08a7d567d6973e03eec288e83f762623296cc84db956fe5b82eff929e9985a391b6435b33f0

  • memory/1284-30-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/1284-33-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/1284-31-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/1284-32-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/1284-21-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/1284-29-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/1284-46-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/1284-28-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/1284-19-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/1284-27-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/1284-23-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/2000-5-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2000-3-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2000-11-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2000-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2000-15-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2000-18-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2000-17-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2000-9-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2000-7-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2792-76-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/2792-75-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/2792-77-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/2792-79-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/2792-81-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/2792-80-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/2792-78-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/2792-85-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/2792-86-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/2792-87-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/2792-88-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB