Analysis

  • max time kernel
    131s
  • max time network
    102s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/06/2024, 00:46

General

  • Target
    9000b78b0179d9d66d117afed1e45f18_JaffaCakes118.exe
  • Size 717KB
  • Sample240603-a442radb4s
  • SHA256 2321f245a5e01b903075619bcca1aebfc554a9237924ad6c5120370f287e0d5a
  • 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.

  • 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.

  • 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\9000b78b0179d9d66d117afed1e45f18_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\9000b78b0179d9d66d117afed1e45f18_JaffaCakes118.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4752
    • C:\Users\Admin\AppData\Local\Temp\00294823\NEOEM0.exe
      "C:\Users\Admin\AppData\Local\Temp/00294823/NEOEM0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops Chrome extension
      • Installs/modifies Browser Helper Object
      • Modifies Internet Explorer settings
      • Modifies registry class
      • System policy modification
      PID:4312

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        NEOEM0.dat

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\NEOEM0.dat
        • Size 5KB
        • SHA256 f40a213f5236b2d76d2f0c03ca2a1ac18a00f210e64792e4de7ae563c3d002c3
        • MD5 SHA1 SHA512 SSDEEP

        NEOEM0.exe

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\NEOEM0.exe
        • Size 334KB
        • SHA256 f54a6814ac06c70ef5b738eca4855e49039783d96b70ba1ae461bd90877e53b5
        • MD5 SHA1 SHA512 SSDEEP

        QUr4L.dll

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\QUr4L.dll
        • Size 222KB
        • SHA256 a9880b90d24af3786886306aefe5c79ff3cb2fb7b36ee5fb7bf2af85f240d63c
        • MD5 SHA1 SHA512 SSDEEP

        QUr4L.tlb

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\QUr4L.tlb
        • Size 2KB
        • SHA256 c2156787eeb818e587529572599fa124773c71330fb93e1c79f4cb9141090941
        • 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 104B
        • SHA256 a0c96ba1eec1259667813b862754174442f4e03502563e7188b2765d8924365c
        • MD5 SHA1 SHA512

        bg.js

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\[email protected]\content\bg.js
        • Size 9KB
        • SHA256 6f5c2ae7610dc0455ef651e8730491d4c93c2e9b839abd5f3b21abb73f2b5eec
        • MD5 SHA1 SHA512 SSDEEP

        install.rdf

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\[email protected]\install.rdf
        • Size 609B
        • SHA256 262e3d642e9e5afb3d700f52dfa174d7efc25d6578efc4709b67da5369fedb1e
        • MD5 SHA1 SHA512

        Pky4Sm.js

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\ioejhbbloegdmkljhkeadkglapijgklc\Pky4Sm.js
        • Size 5KB
        • SHA256 aa77efa87427ea25dbd083e56e79420381e0cf814d12cbd0208480cbbb7dc44d
        • MD5 SHA1 SHA512 SSDEEP

        background.html

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\ioejhbbloegdmkljhkeadkglapijgklc\background.html
        • Size 143B
        • SHA256 4be01deb1871aa1cf615f89e81a8d7a3495284af4b3b27d8b46ad5a6f2dccd2c
        • MD5 SHA1 SHA512

        content.js

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

        lsdb.js

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

        manifest.json

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\ioejhbbloegdmkljhkeadkglapijgklc\manifest.json
        • Size 509B
        • SHA256 39edb1085519fe935c00733c6770037fd84b8da0f4ec46406163c8459325c515
        • MD5 SHA1 SHA512

        sqlite.js

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\ioejhbbloegdmkljhkeadkglapijgklc\sqlite.js
        • Size 1KB
        • SHA256 8b0277f2c65a357006c741812a988554989b62d64df60103d74f8283829ed2af
        • MD5 SHA1 SHA512