Analysis

  • max time kernel
    93s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/05/2024, 18:45

General

  • Target
    645bf18a03e377e3c71ec263b0b3c9b5_JaffaCakes118.exe
  • Size 717KB
  • Sample240521-xeb11aef22
  • SHA256 13c38310dc9f9ae84227b57940641ac964b792b6cbbd8b1a2222718b450536ee
  • 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\645bf18a03e377e3c71ec263b0b3c9b5_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\645bf18a03e377e3c71ec263b0b3c9b5_JaffaCakes118.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5072
    • C:\Users\Admin\AppData\Local\Temp\00294823\8ZAy5blg_p.exe
      "C:\Users\Admin\AppData\Local\Temp/00294823/8ZAy5blg_p.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:2832

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        8ZAy5blg_p.dat

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\8ZAy5blg_p.dat
        • Size 5KB
        • SHA256 00187107abe8343fbc1835eb1b534c5540b24f7a012fcb8dbda1b3b85a20d303
        • MD5 SHA1 SHA512 SSDEEP

        8ZAy5blg_p.exe

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\8ZAy5blg_p.exe
        • Size 334KB
        • SHA256 f54a6814ac06c70ef5b738eca4855e49039783d96b70ba1ae461bd90877e53b5
        • MD5 SHA1 SHA512 SSDEEP

        LMWZ6DYs2.dll

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\LMWZ6DYs2.dll
        • Size 222KB
        • SHA256 a9880b90d24af3786886306aefe5c79ff3cb2fb7b36ee5fb7bf2af85f240d63c
        • MD5 SHA1 SHA512 SSDEEP

        LMWZ6DYs2.tlb

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\LMWZ6DYs2.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 112B
        • SHA256 650868fe640639fdbd99aa9d017985266ca31c18231753707e50c3b85215eb55
        • MD5 SHA1 SHA512

        bg.js

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\[email protected]\content\bg.js
        • Size 9KB
        • SHA256 8b3f940872846a28b3d12a07fbecfa8d6403b05ab3e3f54c7a6ee4099c8a24ab
        • MD5 SHA1 SHA512 SSDEEP

        install.rdf

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\[email protected]\install.rdf
        • Size 604B
        • SHA256 36ba82b67bb78e5efadb694ffcbe7f2509321f2e794af578465ae16cde86ae3c
        • MD5 SHA1 SHA512

        background.html

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\nmldkinhiomibbnceoloiholipdlmoda\background.html
        • Size 147B
        • SHA256 cde1eaac363caa864e6656732f304c44efcfc802b7da30bd29e50f5a282c4b22
        • MD5 SHA1 SHA512

        content.js

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

        lsdb.js

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

        manifest.json

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\nmldkinhiomibbnceoloiholipdlmoda\manifest.json
        • Size 509B
        • SHA256 2be35d1c5c2a4f314c18a0f80514574f606f2f667c45fd390bb2454e2763e5f5
        • MD5 SHA1 SHA512

        sqlite.js

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\nmldkinhiomibbnceoloiholipdlmoda\sqlite.js
        • Size 1KB
        • SHA256 25c0a2ddbb5d89e34fd4b53f3b99b6f325a6bafa8b0648b6e78a3685e8cb975c
        • MD5 SHA1 SHA512

        zPxrF5xfmR.js

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\nmldkinhiomibbnceoloiholipdlmoda\zPxrF5xfmR.js
        • Size 5KB
        • SHA256 8af612b2c4d300df6aa697e2a8eb44a39a956d7d72fc649a6cc6cff57cb39aaa
        • MD5 SHA1 SHA512 SSDEEP