Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/06/2024, 03:08

General

  • Target
    010574ec10956dc6f5bba79de8e8a868_JaffaCakes118.exe
  • Size 251KB
  • Sample240622-dm4ansveme
  • SHA256 4b365aa00d65dcea6b9194a3f2056f0839c23ce4f88fb4cade23c1a2836ed885
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

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

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

  • 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 4 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 63 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\010574ec10956dc6f5bba79de8e8a868_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\010574ec10956dc6f5bba79de8e8a868_JaffaCakes118.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:924
    • C:\Users\Admin\AppData\Local\Temp\7zS3EED.tmp\setup.exe
      .\setup.exe /s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • System policy modification
      PID:436

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        uninstall.exe

        • Path C:\ProgramData\DownloadnSave\uninstall.exe
        • Size 46KB
        • SHA256 634557ab79a29fe800721bc5f146a9b86799b72eb6755e821492f85ca66818a6
        • MD5 SHA1 SHA512 SSDEEP

        bootstrap.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3EED.tmp\[email protected]\bootstrap.js
        • Size 2KB
        • SHA256 bba9d13c3738ea9a3541dc9cd59950f0ebac4e73380a7ef0e9a42228346c3d62
        • MD5 SHA1 SHA512

        chrome.manifest

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3EED.tmp\[email protected]\chrome.manifest
        • Size 116B
        • SHA256 278f4d605c24c223d97343253f5490a2187e6f56ac153856eb0a46e2bec730c9
        • MD5 SHA1 SHA512

        bg.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3EED.tmp\[email protected]\content\bg.js
        • Size 8KB
        • SHA256 5ecd54748cb2c61c784b8afa179bc178e90560468245bf78a92964c264f1d56f
        • MD5 SHA1 SHA512 SSDEEP

        zy.xul

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3EED.tmp\[email protected]\content\zy.xul
        • Size 225B
        • SHA256 1db1a94ae056c978fa06f9eb9fbbcbdcf8d108ab323b68f7e97eb521a394b471
        • MD5 SHA1 SHA512

        install.rdf

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3EED.tmp\[email protected]\install.rdf
        • Size 720B
        • SHA256 c5ed38f5f685b9fd16c99a46c471275f5f68e044b4d51b0eb28e3bcec9df1047
        • MD5 SHA1 SHA512

        background.html

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3EED.tmp\background.html
        • Size 4KB
        • SHA256 82a7e88e571dbffae0b548d1c0140ee412f994ac8753a74c615faca56753d505
        • MD5 SHA1 SHA512 SSDEEP

        bhoclass.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3EED.tmp\bhoclass.dll
        • Size 139KB
        • SHA256 2b4d643a8a14f060bf3885f872b36e5e1fe1e777ad94783ba9593487c8e1f196
        • MD5 SHA1 SHA512 SSDEEP

        content.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3EED.tmp\content.js
        • Size 387B
        • SHA256 69f963d260002368cce0e40d1f17f9e964745458281ce19fe92667c43305d720
        • MD5 SHA1 SHA512

        mghigdnmklgblclcggciiogdpbeachbi.crx

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3EED.tmp\mghigdnmklgblclcggciiogdpbeachbi.crx
        • Size 3KB
        • SHA256 eae99c624a34738896337b836878337d723215b1d7b7861cf99b342f520392d8
        • MD5 SHA1 SHA512

        settings.ini

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3EED.tmp\settings.ini
        • Size 675B
        • SHA256 0faa3a088913d35fb0d3e6865dafec49590797ebed59f0fbe104fdb848c2cfc1
        • MD5 SHA1 SHA512

        setup.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3EED.tmp\setup.exe
        • Size 61KB
        • SHA256 6b9a2b64b90799f1d50458dc38fb4e9e13a8abb37210c8f5d9eeedae84c6912f
        • MD5 SHA1 SHA512 SSDEEP