Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    15-04-2024 01:56

General

  • Target

    f007b11b6014d888d33b581c438bc296_JaffaCakes118.exe

  • Size

    757KB

  • MD5

    f007b11b6014d888d33b581c438bc296

  • SHA1

    18fe4c3997b5730b3c0a375314be046903325817

  • SHA256

    570985f06c6a51a2df7ff6706931807de298709e0083a56b38caf572635efec0

  • SHA512

    58bc0f72616b8f918ffce1b50a858b50596784e8062860cceb4b9ac92103147f719729460b86c009ce6e404a073beb438d0880e97f23ce61fa66d66e609645b5

  • SSDEEP

    12288:w9AFlAd0Z+89cxTGzO4AucTD8QP2lmFSrVs9LqnKEqMd0QZh9u:2AQ6Zx9cxTmOrucTIEFSpOGVD0QZh9u

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

  • Deletes itself 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • 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 46 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f007b11b6014d888d33b581c438bc296_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f007b11b6014d888d33b581c438bc296_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks BIOS information in registry
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1932
    • C:\Windows\SysWOW64\notepad.exe
      notepad
      2⤵
      • Adds Run key to start application
      PID:1220
    • C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\SysWOW64\explorer.exe"
      2⤵
      • Modifies firewall policy service
      • Modifies security service
      • Windows security bypass
      • Checks BIOS information in registry
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2560
      • C:\Windows\SysWOW64\notepad.exe
        C:\Windows\SysWOW64\notepad.exe
        3⤵
          PID:2624
      • C:\Windows\SysWOW64\notepad.exe
        C:\Windows\SysWOW64\notepad.exe
        2⤵
        • Deletes itself
        PID:2600

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windupdt\winupdate.exe

      Filesize

      757KB

      MD5

      f007b11b6014d888d33b581c438bc296

      SHA1

      18fe4c3997b5730b3c0a375314be046903325817

      SHA256

      570985f06c6a51a2df7ff6706931807de298709e0083a56b38caf572635efec0

      SHA512

      58bc0f72616b8f918ffce1b50a858b50596784e8062860cceb4b9ac92103147f719729460b86c009ce6e404a073beb438d0880e97f23ce61fa66d66e609645b5

    • memory/1220-2-0x0000000000080000-0x0000000000081000-memory.dmp

      Filesize

      4KB

    • memory/1220-32-0x0000000000300000-0x0000000000301000-memory.dmp

      Filesize

      4KB

    • memory/1932-0-0x0000000000260000-0x0000000000261000-memory.dmp

      Filesize

      4KB

    • memory/2560-42-0x0000000013140000-0x000000001320F000-memory.dmp

      Filesize

      828KB

    • memory/2560-38-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2560-36-0x0000000013140000-0x000000001320F000-memory.dmp

      Filesize

      828KB

    • memory/2560-40-0x0000000013140000-0x000000001320F000-memory.dmp

      Filesize

      828KB

    • memory/2560-44-0x0000000013140000-0x000000001320F000-memory.dmp

      Filesize

      828KB

    • memory/2560-50-0x0000000000110000-0x0000000000111000-memory.dmp

      Filesize

      4KB

    • memory/2560-49-0x0000000013140000-0x000000001320F000-memory.dmp

      Filesize

      828KB

    • memory/2560-47-0x0000000013140000-0x000000001320F000-memory.dmp

      Filesize

      828KB

    • memory/2560-102-0x0000000013140000-0x000000001320F000-memory.dmp

      Filesize

      828KB

    • memory/2600-90-0x00000000002F0000-0x00000000002F1000-memory.dmp

      Filesize

      4KB

    • memory/2624-99-0x00000000004D0000-0x00000000004D1000-memory.dmp

      Filesize

      4KB