Analysis

  • max time kernel
    150s
  • 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, 04:04

General

  • Target
    012d90adf885aa8124938bb9c383fbb4_JaffaCakes118.exe
  • Size 313KB
  • Sample240622-emxcss1dkn
  • SHA256 4bfa0ddc203d027a70f79e94cadf2c9f5e320c6237dfd4642b5fe0018b569e20
  • 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\012d90adf885aa8124938bb9c383fbb4_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\012d90adf885aa8124938bb9c383fbb4_JaffaCakes118.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3560
    • C:\Users\Admin\AppData\Local\Temp\7zS3A3A.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:2268

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        uninstall.exe

        • Path C:\ProgramData\wxDfast\uninstall.exe
        • Size 46KB
        • SHA256 03c965d0bd9827a978ef4080139533573aa800c9803599c0ce91da48506ad8f6
        • MD5 SHA1 SHA512 SSDEEP

        chrome.manifest

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3A3A.tmp\[email protected]\chrome.manifest
        • Size 114B
        • SHA256 413edeb3cf47bc32533adb14ac16dbd098dbc8b847ad20b050f61b368d137a64
        • MD5 SHA1 SHA512

        indexeddb.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3A3A.tmp\[email protected]\content\indexeddb.js
        • Size 1KB
        • SHA256 111f9d48061de86a5a1b0145887c99db074170551e52de69ad3634c410535e73
        • MD5 SHA1 SHA512

        jquery.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3A3A.tmp\[email protected]\content\jquery.js
        • Size 91KB
        • SHA256 3739b485ac39b157caa066b883e4d9d3f74c50beff0b86cd8a24ce407b179a23
        • MD5 SHA1 SHA512 SSDEEP

        jsext.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3A3A.tmp\[email protected]\content\jsext.js
        • Size 6KB
        • SHA256 8ba41aba22be9229e058f7ffca3589b8ddef5f38224ba6e3bebbf9273ee97c8f
        • MD5 SHA1 SHA512 SSDEEP

        lsdb.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3A3A.tmp\[email protected]\content\lsdb.js
        • Size 1KB
        • SHA256 5643ba43c90dea2d29c115745c84bd4d86d73a7dd8ad99f8e0e9615962354b1c
        • MD5 SHA1 SHA512

        prfdb.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3A3A.tmp\[email protected]\content\prfdb.js
        • Size 1KB
        • SHA256 a313d72a11761a1b1577f430cde46b2bd3309fb676166477c26e9947d236b600
        • MD5 SHA1 SHA512

        sqlite.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3A3A.tmp\[email protected]\content\sqlite.js
        • Size 1KB
        • SHA256 9dce23fa4c14ce5068cd6802a762349a906104b01657cdd065266f1db7a74828
        • MD5 SHA1 SHA512

        wx.xul

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3A3A.tmp\[email protected]\content\wx.xul
        • Size 228B
        • SHA256 166df273a239b7c6a38d2a58529ad52b818b2d5e3f912b4f422e3bd2ba9ad8f5
        • MD5 SHA1 SHA512

        install.rdf

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3A3A.tmp\[email protected]\install.rdf
        • Size 677B
        • SHA256 626aa501a9a50729068ef58a774397628b46b9ad4a4570cf2f91e0d6f231689a
        • MD5 SHA1 SHA512

        background.html

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3A3A.tmp\background.html
        • Size 5KB
        • SHA256 c0f8bf017be4fac9c8abafccb32be858fe693b391e92fd34f2f521fdb938ed10
        • MD5 SHA1 SHA512 SSDEEP

        bhoclass.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3A3A.tmp\bhoclass.dll
        • Size 137KB
        • SHA256 7bf09b5c2a9b6348227199c1b3951b57907ca6a5c215a04ad8d5e43232f5b562
        • MD5 SHA1 SHA512 SSDEEP

        content.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3A3A.tmp\content.js
        • Size 386B
        • SHA256 6d9673b2ca073f11026954e95f069fbb37bea3019042c5ca2e1c3678755428b9
        • MD5 SHA1 SHA512

        ipiebcfbondngialdnodbhlblnfcmjlb.crx

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3A3A.tmp\ipiebcfbondngialdnodbhlblnfcmjlb.crx
        • Size 37KB
        • SHA256 fa64f32866ab7ce1a1757d4053923f4d81172cb729381567d383b5ea478b222b
        • MD5 SHA1 SHA512 SSDEEP

        settings.ini

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3A3A.tmp\settings.ini
        • Size 599B
        • SHA256 eefd2bd9687ed7f1e50c53e287a17bf7390e71a2143609e449b5c9ea0f3e82ca
        • MD5 SHA1 SHA512

        setup.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zS3A3A.tmp\setup.exe
        • Size 61KB
        • SHA256 15c0e4fd6091cda70fa308ea5ee956996f6eb23d24e44700bd5c74bf111cf2aa
        • MD5 SHA1 SHA512 SSDEEP