Analysis

  • max time kernel
    140s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/06/2024, 03:38

General

  • Target
    027915753d04325f2fd57362443aa4e8_JaffaCakes118.exe
  • Size 309KB
  • Sample240620-d7atvs1dnp
  • SHA256 dadfffc51769ca47b7804f794db2675de84e754d08da093b506343760c548633
  • 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\027915753d04325f2fd57362443aa4e8_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\027915753d04325f2fd57362443aa4e8_JaffaCakes118.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1516
    • C:\Users\Admin\AppData\Local\Temp\7zS6D31.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:4748

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        uninstall.exe

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

        chrome.manifest

        • Path C:\Users\Admin\AppData\Local\Temp\7zS6D31.tmp\[email protected]\chrome.manifest
        • Size 114B
        • SHA256 3586078c42442b2204879b439383da922c27ca0aea768a69b603cfeb6bce37ec
        • MD5 SHA1 SHA512

        indexeddb.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS6D31.tmp\[email protected]\content\indexeddb.js
        • Size 1KB
        • SHA256 9e8f3958b00a078cb14ffa41d2c7e7ceae78367deff12b0a2c5b473edb3ca697
        • MD5 SHA1 SHA512

        jquery.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS6D31.tmp\[email protected]\content\jquery.js
        • Size 91KB
        • SHA256 5309ca3e99da2e0fa0de2575ea750847db37fd4f4f1dbbda2a513268c702ace3
        • MD5 SHA1 SHA512 SSDEEP

        jsext.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS6D31.tmp\[email protected]\content\jsext.js
        • Size 6KB
        • SHA256 543a38ddf575efca616c24a4e51b2c77632d4ad81c35d3f4edf3c7df50a74fcd
        • MD5 SHA1 SHA512 SSDEEP

        lsdb.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS6D31.tmp\[email protected]\content\lsdb.js
        • Size 1KB
        • SHA256 49343dda3495c0c8a7ee40046e8fe5cffedce720b8cf60527b3a0d9124f8a14e
        • MD5 SHA1 SHA512

        prfdb.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS6D31.tmp\[email protected]\content\prfdb.js
        • Size 1KB
        • SHA256 5f0fde2bea508136f6ad28042e61404d7e30e1da8f1e34765c3d1a8f126dcf42
        • MD5 SHA1 SHA512

        sqlite.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS6D31.tmp\[email protected]\content\sqlite.js
        • Size 1KB
        • SHA256 b09ebf501235395e8e57cc3a901e68bf4a4bbf8bbcc002b1acc3407e5a1c0d36
        • MD5 SHA1 SHA512

        wx.xul

        • Path C:\Users\Admin\AppData\Local\Temp\7zS6D31.tmp\[email protected]\content\wx.xul
        • Size 228B
        • SHA256 0374cd4f121ea5616480096ade6b471c3466afd44c6a2adca3f566fbc4471aab
        • MD5 SHA1 SHA512

        install.rdf

        • Path C:\Users\Admin\AppData\Local\Temp\7zS6D31.tmp\[email protected]\install.rdf
        • Size 668B
        • SHA256 03971edb10180c2e29902c9c49e998c07d7948a9b3d24eabdf19fe964ce702a9
        • MD5 SHA1 SHA512

        background.html

        • Path C:\Users\Admin\AppData\Local\Temp\7zS6D31.tmp\background.html
        • Size 5KB
        • SHA256 2330fa75390449171f88a891efbbb0838c4afd5c46ca9525b9ee220988d77f9e
        • MD5 SHA1 SHA512 SSDEEP

        bhoclass.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7zS6D31.tmp\bhoclass.dll
        • Size 137KB
        • SHA256 7bf09b5c2a9b6348227199c1b3951b57907ca6a5c215a04ad8d5e43232f5b562
        • MD5 SHA1 SHA512 SSDEEP

        content.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS6D31.tmp\content.js
        • Size 387B
        • SHA256 f7566e6ed8d1be89c9b63da1850d0470e7a1ec2de3a29ff333232ea45f7b2fa2
        • MD5 SHA1 SHA512

        hpilclpacieflhmobalmaccogiioldoo.crx

        • Path C:\Users\Admin\AppData\Local\Temp\7zS6D31.tmp\hpilclpacieflhmobalmaccogiioldoo.crx
        • Size 37KB
        • SHA256 3b8ab5581374850773616cac714a75a300733af5dc614e1de2538e6a2db55f40
        • MD5 SHA1 SHA512 SSDEEP

        settings.ini

        • Path C:\Users\Admin\AppData\Local\Temp\7zS6D31.tmp\settings.ini
        • Size 599B
        • SHA256 a7ed6afe3b77edcb96e5aa006dd9c227acd6dbc897b80b768a6c4e17b30d1727
        • MD5 SHA1 SHA512

        setup.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zS6D31.tmp\setup.exe
        • Size 61KB
        • SHA256 15c0e4fd6091cda70fa308ea5ee956996f6eb23d24e44700bd5c74bf111cf2aa
        • MD5 SHA1 SHA512 SSDEEP