Analysis

  • max time kernel
    93s
  • max time network
    113s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/04/2024, 10:01

General

  • Target
    f0caffbe3f2f8feb9c72630e8ac51d6c_JaffaCakes118.exe
  • Size 250KB
  • Sample240415-l2cehaea7x
  • SHA256 442ed9cc339b9fdc08e5a94c63a0448f1fcc66a94d91102a29cbef03ffcf6b87
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 2 IoCs

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

  • Checks installed software on the system 1 TTPs

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

  • Drops Chrome extension 1 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 4 IoCs
  • Modifies registry class 45 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f0caffbe3f2f8feb9c72630e8ac51d6c_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f0caffbe3f2f8feb9c72630e8ac51d6c_JaffaCakes118.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5084
    • C:\Users\Admin\AppData\Local\Temp\7zS371D.tmp\50fa5ff325cda.exe
      .\50fa5ff325cda.exe /s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops Chrome extension
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • System policy modification
      PID:2992

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        uninstall.exe

        • Path C:\ProgramData\wxDownload\uninstall.exe
        • Size 48KB
        • SHA256 a76272ed3bbf23308782a308d428ee805ec77fbb622a830af26cb0ddbbf7377b
        • MD5 SHA1 SHA512 SSDEEP

        bootstrap.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS371D.tmp\[email protected]\bootstrap.js
        • Size 2KB
        • SHA256 3bdd7bc4da8918219ae607c7c4512b2c1c4b41d289a273c1986987d1ff30475e
        • MD5 SHA1 SHA512

        chrome.manifest

        • Path C:\Users\Admin\AppData\Local\Temp\7zS371D.tmp\[email protected]\chrome.manifest
        • Size 116B
        • SHA256 fe04d2d8eef290a82fcbcf3e9d066b752fcd6e16007c74b0207a343e9713643e
        • MD5 SHA1 SHA512

        bg.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS371D.tmp\[email protected]\content\bg.js
        • Size 8KB
        • SHA256 0450acd9edfb9018d6b214241682e33e9666b704f5719ba779aa02229011ad7e
        • MD5 SHA1 SHA512 SSDEEP

        zy.xul

        • Path C:\Users\Admin\AppData\Local\Temp\7zS371D.tmp\[email protected]\content\zy.xul
        • Size 225B
        • SHA256 a785892a61cb6dee39d17b7860f417bb2539c0a474eaf7fd6cfbe1579405962a
        • MD5 SHA1 SHA512

        install.rdf

        • Path C:\Users\Admin\AppData\Local\Temp\7zS371D.tmp\[email protected]\install.rdf
        • Size 717B
        • SHA256 49635a68903beeb0ce00d78a1f564d1d32ddd560967b5b376b3df7e31cf780c6
        • MD5 SHA1 SHA512

        50fa5ff325cda.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zS371D.tmp\50fa5ff325cda.exe
        • Size 71KB
        • SHA256 d205693516dbaf34cfbd216e825190de4de1412e861bc9cb30ce863907b30d22
        • MD5 SHA1 SHA512 SSDEEP

        50fa5ff325d13.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7zS371D.tmp\50fa5ff325d13.dll
        • Size 116KB
        • SHA256 0648d564b30e13a0819f28e00a9af39a6686a4d29ccd265c7d81548e4fe0f67e
        • MD5 SHA1 SHA512 SSDEEP

        50fa5ff325d13.tlb

        • Path C:\Users\Admin\AppData\Local\Temp\7zS371D.tmp\50fa5ff325d13.tlb
        • Size 2KB
        • SHA256 bd3d85c0136a66b2af79d4d91c1c5700c8931937b7e554d5ece946760ef4a99c
        • MD5 SHA1 SHA512

        50fa5ff325ae94.47095869.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS371D.tmp\eifdahbihjkckaogeoggalbobklkhjlm\50fa5ff325ae94.47095869.js
        • Size 4KB
        • SHA256 485a055233a8493681ae279437126d5338bb431d49202ee1bde1f270df9693e2
        • MD5 SHA1 SHA512 SSDEEP

        background.html

        • Path C:\Users\Admin\AppData\Local\Temp\7zS371D.tmp\eifdahbihjkckaogeoggalbobklkhjlm\background.html
        • Size 161B
        • SHA256 7cd0d5a98e06b99c5e68b5d56b8bf8132fe47aec943ab512359e13c37edccc60
        • MD5 SHA1 SHA512

        content.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS371D.tmp\eifdahbihjkckaogeoggalbobklkhjlm\content.js
        • Size 197B
        • SHA256 fb01e87250ac9985ed08d97f2f99937a52998ea9faebdc88e4071d6517e1ea6b
        • MD5 SHA1 SHA512

        lsdb.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS371D.tmp\eifdahbihjkckaogeoggalbobklkhjlm\lsdb.js
        • Size 559B
        • SHA256 e3cf0049af8b9f6cb4f0223ccb8438f4b0c75863684c944450015868a0c45704
        • MD5 SHA1 SHA512

        manifest.json

        • Path C:\Users\Admin\AppData\Local\Temp\7zS371D.tmp\eifdahbihjkckaogeoggalbobklkhjlm\manifest.json
        • Size 477B
        • SHA256 4c4b5ed58b428b592b4d5dc264cc0064a55754ef21a8c0173dcbe91d832efef1
        • MD5 SHA1 SHA512

        sqlite.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS371D.tmp\eifdahbihjkckaogeoggalbobklkhjlm\sqlite.js
        • Size 1KB
        • SHA256 6c1f67bbe1086f70ce08454582086a7dbbe715948f0b04a7696d276f1eae49d0
        • MD5 SHA1 SHA512

        settings.ini

        • Path C:\Users\Admin\AppData\Local\Temp\7zS371D.tmp\settings.ini
        • Size 6KB
        • SHA256 c252e7daab3136b210af78c0b5e6642e20f221b388a3c388ccc1d5d5fadd9726
        • MD5 SHA1 SHA512 SSDEEP

        UserInfo.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsu3809.tmp\UserInfo.dll
        • Size 4KB
        • SHA256 564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5
        • MD5 SHA1 SHA512

        nsJSON.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsu3809.tmp\nsJSON.dll
        • Size 7KB
        • SHA256 49b173504eb9cd07e42a3c4deb84c2cd3f3b49c7fb0858aee43ddfc64660e384
        • MD5 SHA1 SHA512 SSDEEP

        memory/2992-79-0x0000000073E80000-0x0000000073E8A000-memory.dmp