Analysis

  • max time kernel
    142s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/10/2024, 14:17

General

  • Target
    66f986e212651b7400d53557f95e2856_JaffaCakes118.exe
  • Size 717KB
  • Sample241021-rl7hlayepl
  • SHA256 efdf7ff88be1abb47d3bfb1ba766cf3bf6b8cfb54d763bc46001e7b7c5609594
  • 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\66f986e212651b7400d53557f95e2856_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\66f986e212651b7400d53557f95e2856_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4644
    • C:\Users\Admin\AppData\Local\Temp\00294823\WP2Y.exe
      "C:\Users\Admin\AppData\Local\Temp/00294823/WP2Y.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:960

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        WP2Y.dat

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\WP2Y.dat
        • Size 5KB
        • SHA256 c952934a492a100ad340fe8968420732c45964d5f77524a8abe87c0081049dda
        • MD5 SHA1 SHA512 SSDEEP

        WP2Y.exe

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\WP2Y.exe
        • Size 334KB
        • SHA256 f54a6814ac06c70ef5b738eca4855e49039783d96b70ba1ae461bd90877e53b5
        • MD5 SHA1 SHA512 SSDEEP

        background.html

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\gcepjpmkklgoiiklbiflkdbmbeekiinl\background.html
        • Size 141B
        • SHA256 5937162916577d066a44ab42901cff40641b013560f8f4793022a8d600f318ed
        • MD5 SHA1 SHA512

        content.js

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

        lsdb.js

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

        manifest.json

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\gcepjpmkklgoiiklbiflkdbmbeekiinl\manifest.json
        • Size 507B
        • SHA256 411574f44e6a1fdcbf2a155fcd2afd95551fab7a116d2dde31788442786b1bee
        • MD5 SHA1 SHA512

        sqlite.js

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\gcepjpmkklgoiiklbiflkdbmbeekiinl\sqlite.js
        • Size 1KB
        • SHA256 8d58f68610d8dfb43f2e7d9b4b15fff2df88b3ab856d2ca7313e9c7ff56accd5
        • MD5 SHA1 SHA512

        wYoo.js

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\gcepjpmkklgoiiklbiflkdbmbeekiinl\wYoo.js
        • Size 5KB
        • SHA256 7ba76f77144b054b3015cacf636e145e039174002f708116f359d8fc5ce735fe
        • MD5 SHA1 SHA512 SSDEEP

        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 100B
        • SHA256 0a4710e25a63cbd27188936afff981c714c8167955c99b570d827ee9fe9775c9
        • MD5 SHA1 SHA512

        bg.js

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\[email protected]\content\bg.js
        • Size 9KB
        • SHA256 ea8bffbc664c56a84ac2799b0df5d93ed2d2fb98ed7a35177137d2f80c05af01
        • MD5 SHA1 SHA512 SSDEEP

        install.rdf

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\[email protected]\install.rdf
        • Size 604B
        • SHA256 0d8097df288b0db2f75310a85f9607bd9f0fa73f7d5f1cae7267098f4d64bf41
        • MD5 SHA1 SHA512

        t7l.dll

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\t7l.dll
        • Size 222KB
        • SHA256 a9880b90d24af3786886306aefe5c79ff3cb2fb7b36ee5fb7bf2af85f240d63c
        • MD5 SHA1 SHA512 SSDEEP

        t7l.tlb

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\t7l.tlb
        • Size 2KB
        • SHA256 c2156787eeb818e587529572599fa124773c71330fb93e1c79f4cb9141090941
        • MD5 SHA1 SHA512