Analysis

  • max time kernel
    140s
  • max time network
    126s
  • 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, 03:10

General

  • Target
    68a11f60007d345126f8f0f4e919ee68_JaffaCakes118.exe
  • Size 1.0MB
  • Sample241022-dph3hstcqf
  • SHA256 2b907107e65f48f1e3ecf66cba4e3be59b481acb567278953d60ecc8fffb7fe1
  • 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\68a11f60007d345126f8f0f4e919ee68_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\68a11f60007d345126f8f0f4e919ee68_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4772
    • C:\Users\Admin\AppData\Local\Temp\00294823\vfkc.exe
      "C:\Users\Admin\AppData\Local\Temp/00294823/vfkc.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:3980

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        3kL.dll

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\3kL.dll
        • Size 258KB
        • SHA256 9900e517bfd4b39bd7af4bb360af52f6c95ef9b3e7ef36d2633485c58bef9a1a
        • MD5 SHA1 SHA512 SSDEEP

        3kL.tlb

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\3kL.tlb
        • Size 2KB
        • SHA256 66fab808188a98ba49d99b723a181aa6626197d50bd2d5e15e076dcbc6fbb2cc
        • MD5 SHA1 SHA512

        3kL.x64.dll

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\3kL.x64.dll
        • Size 319KB
        • SHA256 870c280ea861313edda0bd3950dc738ea68d006f315888d66023b54e5f98f0ea
        • MD5 SHA1 SHA512 SSDEEP

        background.html

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\afcpmlhldgfbjlgipomjicfmojedcmho\background.html
        • Size 141B
        • SHA256 a388d9bc325ca40569d29388f65b1e7cfe77eecb4e74ec624db0fd559c90ddc1
        • MD5 SHA1 SHA512

        content.js

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

        lsdb.js

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

        manifest.json

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\afcpmlhldgfbjlgipomjicfmojedcmho\manifest.json
        • Size 508B
        • SHA256 a27ae7e5c3455533c4b9228d8feda4ccf04febdb7020a1ce3b05c6e946c364f9
        • MD5 SHA1 SHA512

        sqlite.js

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\afcpmlhldgfbjlgipomjicfmojedcmho\sqlite.js
        • Size 1KB
        • SHA256 96d6df67b147bfde7a3fe3184a4059e2776a442fa921fd0bd0a21841eaf9920c
        • MD5 SHA1 SHA512

        urhj.js

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\afcpmlhldgfbjlgipomjicfmojedcmho\urhj.js
        • Size 5KB
        • SHA256 fffa2cf129fb632fb32a0b181d0674687bfd1d4af82f2085c9f2a1544e56c974
        • 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 3ace4109ae3dc988b5e06015940390ae994edf0939e22e409974eb5431c010e3
        • MD5 SHA1 SHA512

        bg.js

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\[email protected]\content\bg.js
        • Size 9KB
        • SHA256 d0de46bfa4ad7ae033c11bd78c736a6171dcc23f067cdc1a85e465999e6d01e9
        • MD5 SHA1 SHA512 SSDEEP

        install.rdf

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\[email protected]\install.rdf
        • Size 611B
        • SHA256 e6b29b2d4b2ce29bb14f12d37fffa4e46fcb3e409d1084334cc6f8c6acbc2433
        • MD5 SHA1 SHA512

        vfkc.dat

        • Path C:\Users\Admin\AppData\Local\Temp\00294823\vfkc.dat
        • Size 3KB
        • SHA256 1e0934341ab4b1bf529f04c4e3b90c652f5c542bb5661f1b1d9ee16633133d02
        • MD5 SHA1 SHA512

        vfkc.exe

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