Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/06/2024, 22:47

General

  • Target
    0009297260d5f43d2086c20dc376f396_JaffaCakes118.exe
  • Size 493KB
  • Sample240621-2qlrssxekr
  • SHA256 c9968b08887dd93fe8b4e5ffcd9337d8dfd3bb2fec2e02a56fc4349c6bedfe92
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in Program Files directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 9 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0009297260d5f43d2086c20dc376f396_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\0009297260d5f43d2086c20dc376f396_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • Modifies Internet Explorer settings
    • Suspicious use of WriteProcessMemory
    PID:732
    • C:\Program Files (x86)\AdvTopC\AdvTCApp.exe
      "C:\Program Files (x86)\AdvTopC\AdvTCApp.exe" /r
      2⤵
      • Executes dropped EXE
      • Modifies registry class
      PID:1424
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" /s "C:\Program Files (x86)\AdvTopC\TCHelper.dll"
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      PID:4860

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        AdvTCApp.exe

        • Path C:\Program Files (x86)\AdvTopC\AdvTCApp.exe
        • Size 305KB
        • SHA256 867b016b5bd895a8149d76b0c5d4a55a20e2aa38b0bd24a134e769ca96d9d918
        • MD5 SHA1 SHA512 SSDEEP

        AdvTCApp.tlb

        • Path C:\Program Files (x86)\AdvTopC\AdvTCApp.tlb
        • Size 2KB
        • SHA256 7285e819ccaacecc882f91138e5402d80ac32927216c8e40030f6b60232613ba
        • MD5 SHA1 SHA512

        TCHelper.dll

        • Path C:\Program Files (x86)\AdvTopC\TCHelper.dll
        • Size 230KB
        • SHA256 03614623326db9c1575c9484128182a925a718e9a5ffca8d1678c5100e638a52
        • MD5 SHA1 SHA512 SSDEEP