Analysis

  • max time kernel
    101s
  • max time network
    104s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250619-en
  • resource tags

    arch:x64arch:x86image:win11-20250619-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    04/07/2025, 16:47

General

  • Target
    JaffaCakes118_1c61971f78d2805088bb9b341e9a0616.exe
  • Size 551KB
  • Sample250704-va2prawvbt
  • SHA256 ecb3101ffaba49987de6fd7bf8e020bdb93601d185adaab412caf6859effccda
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Loads dropped DLL 2 IoCs
  • 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.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1c61971f78d2805088bb9b341e9a0616.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1c61971f78d2805088bb9b341e9a0616.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1852
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" /n /s /i:"" 5.dll
      2⤵
      • Loads dropped DLL
      • Drops Chrome extension
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Modifies registry class
      PID:2916

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        5.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7zSA519.tmp\5.dll
        • Size 203KB
        • SHA256 7fa4bb68c313e1090587a64b90e87bdcbc14ea3fb7c0e8cff94c657c969b70bf
        • MD5 SHA1 SHA512 SSDEEP

        bootstrap.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zSA519.tmp\[email protected]\bootstrap.js
        • Size 2KB
        • SHA256 e9f19ebac9b91129745c06f2d986120cd4fc6a03581d3d1bac735fdd8441357b
        • MD5 SHA1 SHA512

        chrome.manifest

        • Path C:\Users\Admin\AppData\Local\Temp\7zSA519.tmp\[email protected]\chrome.manifest
        • Size 96B
        • SHA256 51edd07612d1097002d1723caca6162b9d23c539b5b8f5775759b558873084c2
        • MD5 SHA1 SHA512

        bg.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zSA519.tmp\[email protected]\content\bg.js
        • Size 9KB
        • SHA256 b56ea4b9c878667bf1adbe4c6854a7eaacfea2678ef6557a82fcac20f309a3be
        • MD5 SHA1 SHA512 SSDEEP

        install.rdf

        • Path C:\Users\Admin\AppData\Local\Temp\7zSA519.tmp\[email protected]\install.rdf
        • Size 604B
        • SHA256 7bb3ee6e6c342ba419ff0dc60b407c863e0be5953a9c0e0d2fe4d89700a62407
        • MD5 SHA1 SHA512

        Preferences.C__Users_Admin_AppData_Local_Google_Chrome_User Data_Default_Preferences

        • Path C:\Users\Admin\AppData\Local\Temp\7zSA519.tmp\Preferences.C__Users_Admin_AppData_Local_Google_Chrome_User Data_Default_Preferences
        • Size 10KB
        • SHA256 01dec4e12e2f63df0413afb235dfe0513f9c600f20c43c0da2d14c4536da4234
        • MD5 SHA1 SHA512 SSDEEP

        WQ.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zSA519.tmp\lafnndgoedeggdbeepaghakeegnbhgki\WQ.js
        • Size 5KB
        • SHA256 e264626f09c3912142b79652942b5cc3604abdb47d40bbcbbb6038fb7f6c017d
        • MD5 SHA1 SHA512 SSDEEP

        background.html

        • Path C:\Users\Admin\AppData\Local\Temp\7zSA519.tmp\lafnndgoedeggdbeepaghakeegnbhgki\background.html
        • Size 139B
        • SHA256 3dd15c13821e34672e0821ebc94b1c5b811be5955e3fa6821565978bd88e66f7
        • MD5 SHA1 SHA512

        content.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zSA519.tmp\lafnndgoedeggdbeepaghakeegnbhgki\content.js
        • Size 197B
        • SHA256 fb01e87250ac9985ed08d97f2f99937a52998ea9faebdc88e4071d6517e1ea6b
        • MD5 SHA1 SHA512

        lsdb.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zSA519.tmp\lafnndgoedeggdbeepaghakeegnbhgki\lsdb.js
        • Size 559B
        • SHA256 e3cf0049af8b9f6cb4f0223ccb8438f4b0c75863684c944450015868a0c45704
        • MD5 SHA1 SHA512

        manifest.json

        • Path C:\Users\Admin\AppData\Local\Temp\7zSA519.tmp\lafnndgoedeggdbeepaghakeegnbhgki\manifest.json
        • Size 504B
        • SHA256 b3a2c51e8fbe1a9f9ed12881167644678bc5b22b710c678fbd014515d92bd166
        • MD5 SHA1 SHA512

        sqlite.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zSA519.tmp\lafnndgoedeggdbeepaghakeegnbhgki\sqlite.js
        • Size 1KB
        • SHA256 29b2ae0c53790bcf2fb8695f78e6e1db88089a4830e15a48edf92a590d61dced
        • MD5 SHA1 SHA512

        settings.ini

        • Path C:\Users\Admin\AppData\Local\Temp\7zSA519.tmp\settings.ini
        • Size 7KB
        • SHA256 f1090001daf1126cfd7a0293a9dbfeb95c15a03941b3c48cd110707977ddf644
        • MD5 SHA1 SHA512 SSDEEP

        w.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7zSA519.tmp\w.dll
        • Size 180KB
        • SHA256 028999304f35f7a6fc2cf6e360d4ea587612d63ce191fa979cc98ccca46ab149
        • MD5 SHA1 SHA512 SSDEEP

        w.tlb

        • Path C:\Users\Admin\AppData\Local\Temp\7zSA519.tmp\w.tlb
        • Size 2KB
        • SHA256 7bad79916803a14ca817e5c39f5ec2f0f240044d6dc24fb4916c8fda338060f1
        • MD5 SHA1 SHA512