Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-06-2024 02:25

General

  • Target

    18737b20ca2a0bcf0232b95229848466_JaffaCakes118.exe

  • Size

    380KB

  • MD5

    18737b20ca2a0bcf0232b95229848466

  • SHA1

    8af1dfa28307544dd3fbd7124702d2586ebf4b3a

  • SHA256

    e3a4af22b0ede7f828047006daea93264dbe240d4d7f6c64152a33610142f988

  • SHA512

    3e265b2a600ed420fee6e0d10981c476cfa95339668db4471fa92b98990d61103ddc2ea0f53a7455b7131352a34e6f0520476b064423446d111d4a8d26eabf88

  • SSDEEP

    6144:0JzXTQXmPq7hxcxEApZniZDnvN+2ekPam0V69RjSBBpQyKdU/wz/OGP5lDfpo:qMXmPq7heESUw2mxxBpUW/wz/OGPP6

Malware Config

Extracted

Family

latentbot

C2

darkbluecomet.zapto.org

Signatures

  • Darkcomet

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

  • LatentBot

    Modular trojan written in Delphi which has been in-the-wild since 2013.

  • 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 1 IoCs
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • UPX packed file 29 IoCs

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

  • Windows security modification 2 TTPs 1 IoCs
  • 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).

  • 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 SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\18737b20ca2a0bcf0232b95229848466_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\18737b20ca2a0bcf0232b95229848466_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2876
    • C:\Users\Admin\AppData\Local\Temp\18737b20ca2a0bcf0232b95229848466_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\18737b20ca2a0bcf0232b95229848466_JaffaCakes118.exe
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Adds Run key to start application
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4144
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\18737b20ca2a0bcf0232b95229848466_JaffaCakes118.exe" +s +h
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2028
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\18737b20ca2a0bcf0232b95229848466_JaffaCakes118.exe" +s +h
          4⤵
          • Sets file to hidden
          • Views/modifies file attributes
          PID:2724
      • 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:876
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • Sets file to hidden
          • Views/modifies file attributes
          PID:1824
      • C:\Windupdt\winupdate.exe
        "C:\Windupdt\winupdate.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3080
        • C:\Windupdt\winupdate.exe
          C:\Windupdt\winupdate.exe
          4⤵
          • Modifies firewall policy service
          • Modifies security service
          • Windows security bypass
          • Executes dropped EXE
          • Windows security modification
          • Adds Run key to start application
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:5016
      • 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\18737b20ca2a0bcf0232b95229848466_JaffaCakes118.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:428
        • C:\Windows\SysWOW64\PING.EXE
          ping 127.0.0.1 -n 5
          4⤵
          • Runs ping.exe
          PID:3940
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4204,i,1305347165619645738,15927664461101562802,262144 --variations-seed-version --mojo-platform-channel-handle=4608 /prefetch:8
    1⤵
      PID:2904

    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

    Create or Modify System Process

    2
    T1543

    Windows Service

    2
    T1543.003

    Privilege Escalation

    Boot or Logon Autostart Execution

    2
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Winlogon Helper DLL

    1
    T1547.004

    Create or Modify System Process

    2
    T1543

    Windows Service

    2
    T1543.003

    Defense Evasion

    Modify Registry

    6
    T1112

    Impair Defenses

    3
    T1562

    Disable or Modify Tools

    2
    T1562.001

    Disable or Modify System Firewall

    1
    T1562.004

    Hide Artifacts

    2
    T1564

    Hidden Files and Directories

    2
    T1564.001

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Remote System Discovery

    1
    T1018

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windupdt\winupdate.exe
      Filesize

      380KB

      MD5

      18737b20ca2a0bcf0232b95229848466

      SHA1

      8af1dfa28307544dd3fbd7124702d2586ebf4b3a

      SHA256

      e3a4af22b0ede7f828047006daea93264dbe240d4d7f6c64152a33610142f988

      SHA512

      3e265b2a600ed420fee6e0d10981c476cfa95339668db4471fa92b98990d61103ddc2ea0f53a7455b7131352a34e6f0520476b064423446d111d4a8d26eabf88

    • memory/4144-3-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/4144-2-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/4144-4-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/4144-5-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/4144-6-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/4144-10-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/4144-68-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/5016-81-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/5016-86-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/5016-80-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/5016-79-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/5016-78-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/5016-77-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/5016-76-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/5016-82-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/5016-83-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/5016-84-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/5016-85-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/5016-75-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/5016-87-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/5016-88-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/5016-89-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/5016-90-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/5016-91-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/5016-92-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/5016-93-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/5016-94-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/5016-95-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB

    • memory/5016-96-0x0000000000400000-0x00000000004B9000-memory.dmp
      Filesize

      740KB