Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-10-2024 08:31

General

  • Target

    69b1f8ff1e49b78c12fa6657cdef2017_JaffaCakes118.exe

  • Size

    986KB

  • MD5

    69b1f8ff1e49b78c12fa6657cdef2017

  • SHA1

    a6a9eaa541afbf63dbe34e14b39c50f6c89fda14

  • SHA256

    01b69d1f321f028ced66f438204789ef1327aa7fd69619b5840994362fb50510

  • SHA512

    15875b5ee05a797fdb6a298c8b558b7d4855d9f715bdbda85236ac55aa34128a22b64d0eb683393aa371d744f956f59682b6120abb809f6eac9bf5c86632cb15

  • SSDEEP

    24576:w+UD04MRHFqK4VST/xVXJ9k2Ni3n8qcQ6fySiI:f4MRHF6VWxFvkcikQ1DI

Malware Config

Signatures

  • 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 3 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Disables Task Manager via registry modification
  • 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
  • Windows security modification 2 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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.

  • 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
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs
  • System policy modification 1 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\69b1f8ff1e49b78c12fa6657cdef2017_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\69b1f8ff1e49b78c12fa6657cdef2017_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4036
    • C:\Users\Admin\AppData\Local\Temp\69b1f8ff1e49b78c12fa6657cdef2017_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\69b1f8ff1e49b78c12fa6657cdef2017_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:4852
      • C:\system32\winlogon.exe
        "C:\system32\winlogon.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:5040
        • C:\system32\winlogon.exe
          C:\system32\winlogon.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 behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • System policy modification
          PID:4568

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\system32\winlogon.exe

    Filesize

    986KB

    MD5

    69b1f8ff1e49b78c12fa6657cdef2017

    SHA1

    a6a9eaa541afbf63dbe34e14b39c50f6c89fda14

    SHA256

    01b69d1f321f028ced66f438204789ef1327aa7fd69619b5840994362fb50510

    SHA512

    15875b5ee05a797fdb6a298c8b558b7d4855d9f715bdbda85236ac55aa34128a22b64d0eb683393aa371d744f956f59682b6120abb809f6eac9bf5c86632cb15

  • memory/4568-41-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4568-43-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4568-36-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4568-29-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4568-49-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4568-48-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4568-47-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4568-28-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4568-34-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4568-35-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4568-33-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4568-32-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4568-31-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4568-30-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4568-50-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4568-46-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4568-37-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4568-38-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4568-39-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4568-40-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4568-45-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4568-42-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4568-44-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4852-4-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4852-3-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4852-5-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4852-19-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4852-2-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4852-6-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/4852-7-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB