Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/04/2024, 22:50

General

  • Target
    e89bdf43181695d7b306028c5f6396fd_JaffaCakes118.exe
  • Size 249KB
  • Sample240408-2sc8faeb43
  • SHA256 38af8479b38de144ffb9181edb21a4dc5bc4a5a6a233c023cb31f18dacff22a4
  • 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\e89bdf43181695d7b306028c5f6396fd_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e89bdf43181695d7b306028c5f6396fd_JaffaCakes118.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:100
    • C:\Users\Admin\AppData\Local\Temp\7zS5786.tmp\50efcbb48fd6c.exe
      .\50efcbb48fd6c.exe /s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops Chrome extension
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • System policy modification
      PID:1336

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        uninstall.exe

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

        bootstrap.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5786.tmp\[email protected]\bootstrap.js
        • Size 2KB
        • SHA256 9958d25f62f250f4bce82173a7cbc3227c7e0f8779f22b2ce4d8ad48ce5ab964
        • MD5 SHA1 SHA512

        chrome.manifest

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5786.tmp\[email protected]\chrome.manifest
        • Size 116B
        • SHA256 2d14e3e7f00106440e5ed73cb76b52cc6a157e175854db21dda046585d08304b
        • MD5 SHA1 SHA512

        bg.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5786.tmp\[email protected]\content\bg.js
        • Size 8KB
        • SHA256 926efd69d4cb4c6a84919b0ab073bd9b7110b32562981669f2dc7522da2b936a
        • MD5 SHA1 SHA512 SSDEEP

        zy.xul

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5786.tmp\[email protected]\content\zy.xul
        • Size 225B
        • SHA256 e75e03427ddea073e3e07032bccc9249e688e72de83509212086fb5b868a3cc4
        • MD5 SHA1 SHA512

        install.rdf

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5786.tmp\[email protected]\install.rdf
        • Size 700B
        • SHA256 92589d276af9b871f965535077a6ae4887af5e893ab5678ea70c5feea773faf5
        • MD5 SHA1 SHA512

        50efcbb48fd6c.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5786.tmp\50efcbb48fd6c.exe
        • Size 71KB
        • SHA256 d205693516dbaf34cfbd216e825190de4de1412e861bc9cb30ce863907b30d22
        • MD5 SHA1 SHA512 SSDEEP

        50efcbb48fd99.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5786.tmp\50efcbb48fd99.dll
        • Size 116KB
        • SHA256 0648d564b30e13a0819f28e00a9af39a6686a4d29ccd265c7d81548e4fe0f67e
        • MD5 SHA1 SHA512 SSDEEP

        50efcbb48fd99.tlb

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5786.tmp\50efcbb48fd99.tlb
        • Size 2KB
        • SHA256 bd3d85c0136a66b2af79d4d91c1c5700c8931937b7e554d5ece946760ef4a99c
        • MD5 SHA1 SHA512

        50efcbb48fb7c8.63986160.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5786.tmp\eloimlehahfoffiimhihieimppfbdjpp\50efcbb48fb7c8.63986160.js
        • Size 4KB
        • SHA256 622e11aa0a78197ab55cba0a6482a412e4caa9238d1c5efd31c69c4ab357a9b0
        • MD5 SHA1 SHA512 SSDEEP

        background.html

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5786.tmp\eloimlehahfoffiimhihieimppfbdjpp\background.html
        • Size 161B
        • SHA256 b0d9eb0473bbab5ca00bb4cfa313ac16a951953a159f26c736146f3d3f70f362
        • MD5 SHA1 SHA512

        content.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5786.tmp\eloimlehahfoffiimhihieimppfbdjpp\content.js
        • Size 197B
        • SHA256 fb01e87250ac9985ed08d97f2f99937a52998ea9faebdc88e4071d6517e1ea6b
        • MD5 SHA1 SHA512

        lsdb.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5786.tmp\eloimlehahfoffiimhihieimppfbdjpp\lsdb.js
        • Size 559B
        • SHA256 e3cf0049af8b9f6cb4f0223ccb8438f4b0c75863684c944450015868a0c45704
        • MD5 SHA1 SHA512

        manifest.json

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5786.tmp\eloimlehahfoffiimhihieimppfbdjpp\manifest.json
        • Size 475B
        • SHA256 5ac43caaa60d48d2c5bc8059dc845eb344b31c088207c8da714f7a36d500c69e
        • MD5 SHA1 SHA512

        sqlite.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5786.tmp\eloimlehahfoffiimhihieimppfbdjpp\sqlite.js
        • Size 1KB
        • SHA256 bde1a03ce146ee815e27c43c5ec8950cac68134a50bbad1903d64376a41929a0
        • MD5 SHA1 SHA512

        settings.ini

        • Path C:\Users\Admin\AppData\Local\Temp\7zS5786.tmp\settings.ini
        • Size 6KB
        • SHA256 8cbbe45378ebc0122505ea63f51cd0924b8c46bbf4381cb19d3bdd9bbd202f65
        • MD5 SHA1 SHA512 SSDEEP

        UserInfo.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsx58C0.tmp\UserInfo.dll
        • Size 4KB
        • SHA256 564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5
        • MD5 SHA1 SHA512

        nsJSON.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsx58C0.tmp\nsJSON.dll
        • Size 7KB
        • SHA256 49b173504eb9cd07e42a3c4deb84c2cd3f3b49c7fb0858aee43ddfc64660e384
        • MD5 SHA1 SHA512 SSDEEP

        memory/1336-78-0x00000000747A0000-0x00000000747AA000-memory.dmp