Analysis

  • max time kernel
    143s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23-05-2024 01:54

General

  • Target

    695b90b4aa3f979981153fed0d682528_JaffaCakes118.exe

  • Size

    620KB

  • MD5

    695b90b4aa3f979981153fed0d682528

  • SHA1

    773ab8e2be7cec065f40dfe57c3964878349399e

  • SHA256

    e668dd735809a2a08efeda2c037952ebd63b53a82648a9a059b06ba156e914a3

  • SHA512

    e9c7a055f1f2f1a18b354b32fc007b0dc9e28b9212e9fb3667d3fc148167da7d664f611c08ad167c4c79d15c6e447a8ff26ea9833804358c4b26342ebae7980e

  • SSDEEP

    6144:hVX/Wjw41C4GVx7sADJ2gB701zM4+TeoA+PK5yAyi2/cwRWl2qtmSSSA58FNjmeQ:WRCxx4EJ2gB4bQegx/cSUlTBvxJx9l

Malware Config

Signatures

  • Darkcomet

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

  • 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 2 IoCs
  • Loads dropped DLL 3 IoCs
  • UPX packed file 21 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\695b90b4aa3f979981153fed0d682528_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\695b90b4aa3f979981153fed0d682528_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1692
    • C:\Users\Admin\AppData\Local\Temp\695b90b4aa3f979981153fed0d682528_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\695b90b4aa3f979981153fed0d682528_JaffaCakes118.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2180
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\695b90b4aa3f979981153fed0d682528_JaffaCakes118.exe" +s +h
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2516
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\695b90b4aa3f979981153fed0d682528_JaffaCakes118.exe" +s +h
          4⤵
          • Sets file to hidden
          • Views/modifies file attributes
          PID:2472
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2536
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • Sets file to hidden
          • Views/modifies file attributes
          PID:2488
      • C:\Users\Admin\AppData\Local\Temp\HDAudio\HDAudio.exe
        "C:\Users\Admin\AppData\Local\Temp\HDAudio\HDAudio.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2572
        • C:\Users\Admin\AppData\Local\Temp\HDAudio\HDAudio.exe
          "C:\Users\Admin\AppData\Local\Temp\HDAudio\HDAudio.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2664
      • 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\695b90b4aa3f979981153fed0d682528_JaffaCakes118.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2492
        • C:\Windows\SysWOW64\PING.EXE
          ping 127.0.0.1 -n 5
          4⤵
          • Runs ping.exe
          PID:2348

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Defense Evasion

Modify Registry

2
T1112

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Discovery

System Information Discovery

1
T1082

Remote System Discovery

1
T1018

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\HDAudio\HDAudio.exe
    Filesize

    620KB

    MD5

    695b90b4aa3f979981153fed0d682528

    SHA1

    773ab8e2be7cec065f40dfe57c3964878349399e

    SHA256

    e668dd735809a2a08efeda2c037952ebd63b53a82648a9a059b06ba156e914a3

    SHA512

    e9c7a055f1f2f1a18b354b32fc007b0dc9e28b9212e9fb3667d3fc148167da7d664f611c08ad167c4c79d15c6e447a8ff26ea9833804358c4b26342ebae7980e

  • memory/2180-9-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/2180-4-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/2180-13-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/2180-11-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/2180-6-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/2180-2-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/2180-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2180-15-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/2180-14-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/2180-32-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/2180-12-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/2180-10-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/2180-16-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/2664-54-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/2664-45-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/2664-46-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/2664-50-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/2664-51-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/2664-49-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/2664-48-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/2664-44-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/2664-52-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/2664-47-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB