Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/10/2024, 03:53

General

  • Target
    68c88a8e7405dbdbbb9fb7cf24e0b566_JaffaCakes118.exe
  • Size 1.0MB
  • Sample241022-efx1rawama
  • SHA256 39bd6e3dea21d668a31e354829089c5cd056603ff0e20dce3c5b4ead59a01705
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

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

  • Drops Chrome extension 1 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 4 IoCs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies Internet Explorer settings 1 TTPs 4 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\68c88a8e7405dbdbbb9fb7cf24e0b566_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\68c88a8e7405dbdbbb9fb7cf24e0b566_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1492
    • C:\Users\Admin\AppData\Local\Temp\00294823\29XP4xkbCh.exe
      "C:\Users\Admin\AppData\Local\Temp/00294823/29XP4xkbCh.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops Chrome extension
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Modifies registry class
      • System policy modification
      PID:556

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        29XP4xkbCh.dat

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\29XP4xkbCh.dat
        • Size 3KB
        • SHA256 5d601575f655ac4c1fddb7e4293a84a669167fce4ec520af82bd895b064a4b09
        • MD5 SHA1 SHA512

        29XP4xkbCh.exe

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\29XP4xkbCh.exe
        • Size 334KB
        • SHA256 f54a6814ac06c70ef5b738eca4855e49039783d96b70ba1ae461bd90877e53b5
        • MD5 SHA1 SHA512 SSDEEP

        8REgJReXL.dll

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\8REgJReXL.dll
        • Size 258KB
        • SHA256 9900e517bfd4b39bd7af4bb360af52f6c95ef9b3e7ef36d2633485c58bef9a1a
        • MD5 SHA1 SHA512 SSDEEP

        8REgJReXL.tlb

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\8REgJReXL.tlb
        • Size 2KB
        • SHA256 66fab808188a98ba49d99b723a181aa6626197d50bd2d5e15e076dcbc6fbb2cc
        • MD5 SHA1 SHA512

        8REgJReXL.x64.dll

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\8REgJReXL.x64.dll
        • Size 319KB
        • SHA256 870c280ea861313edda0bd3950dc738ea68d006f315888d66023b54e5f98f0ea
        • MD5 SHA1 SHA512 SSDEEP

        42F4YLGnN_.js

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\lcmcoelhngbinfabolnbjbidjoillmjp\42F4YLGnN_.js
        • Size 5KB
        • SHA256 17201762303b9cedebd5ca08ee9da112bd0733a96339973eb8952305ade2c83c
        • MD5 SHA1 SHA512 SSDEEP

        background.html

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\lcmcoelhngbinfabolnbjbidjoillmjp\background.html
        • Size 147B
        • SHA256 de0da469026a0c086ef917827800189f9913579f652f15614d6f827126db91b9
        • MD5 SHA1 SHA512

        content.js

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\lcmcoelhngbinfabolnbjbidjoillmjp\content.js
        • Size 197B
        • SHA256 fb01e87250ac9985ed08d97f2f99937a52998ea9faebdc88e4071d6517e1ea6b
        • MD5 SHA1 SHA512

        lsdb.js

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\lcmcoelhngbinfabolnbjbidjoillmjp\lsdb.js
        • Size 559B
        • SHA256 e3cf0049af8b9f6cb4f0223ccb8438f4b0c75863684c944450015868a0c45704
        • MD5 SHA1 SHA512

        manifest.json

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\lcmcoelhngbinfabolnbjbidjoillmjp\manifest.json
        • Size 508B
        • SHA256 4167d3402c0ca9d5a88c3e7d197bdc9ebdef5b18615833424e2e6d0c45919c7c
        • MD5 SHA1 SHA512

        sqlite.js

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\lcmcoelhngbinfabolnbjbidjoillmjp\sqlite.js
        • Size 1KB
        • SHA256 1b7a8d58525a50682e912dd9de8c5690fc5724cc7ff078ce747119aabb16560b
        • MD5 SHA1 SHA512

        bootstrap.js

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\[email protected]\bootstrap.js
        • Size 2KB
        • SHA256 a7dfea4bf7e1d46a8b8e64ccfb2cf35017e3a5b350eead26d6671254d2b3c46f
        • MD5 SHA1 SHA512

        chrome.manifest

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\[email protected]\chrome.manifest
        • Size 112B
        • SHA256 a13a9c3e8cbeb269ad25d2f721ce1ce1505e01199273ca1332c0fd6c5f299c13
        • MD5 SHA1 SHA512

        bg.js

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\[email protected]\content\bg.js
        • Size 9KB
        • SHA256 f9ed1dce785a0175ce4539e1437ab0f6f2be3ff8fe9310d5cde480e4f7bc3ef0
        • MD5 SHA1 SHA512 SSDEEP

        install.rdf

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\[email protected]\install.rdf
        • Size 607B
        • SHA256 cc8dd381f054c0c0eaabf066dbf0a206bd38e8a46795fcde40330551e7304162
        • MD5 SHA1 SHA512