Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/04/2024, 11:02

General

  • Target
    e4c451ff27f20f1cc117a8123eed04b5_JaffaCakes118.exe
  • Size 250KB
  • Sample240407-m46xkabc2y
  • SHA256 29d7a2b23cfa83b1e28860bec5ce488103fd163fb41d1a8eef48d0ddc5ea741d
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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 3 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 45 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e4c451ff27f20f1cc117a8123eed04b5_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e4c451ff27f20f1cc117a8123eed04b5_JaffaCakes118.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3452
    • C:\Users\Admin\AppData\Local\Temp\7zS41BC.tmp\50ef9a3e0a84a.exe
      .\50ef9a3e0a84a.exe /s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops Chrome extension
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • System policy modification
      PID:1708

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        uninstall.exe

        • Path C:\ProgramData\Zoomex\uninstall.exe
        • Size 48KB
        • SHA256 a76272ed3bbf23308782a308d428ee805ec77fbb622a830af26cb0ddbbf7377b
        • MD5 SHA1 SHA512 SSDEEP

        bootstrap.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS41BC.tmp\[email protected]\bootstrap.js
        • Size 2KB
        • SHA256 fb590f58104f2fd4deb3e01f5e0c9c2f2d67328b52329f802b27521b7fdb2490
        • MD5 SHA1 SHA512

        chrome.manifest

        • Path C:\Users\Admin\AppData\Local\Temp\7zS41BC.tmp\[email protected]\chrome.manifest
        • Size 116B
        • SHA256 904a86723fae75b4c27575cf5b949af7bd9143a4e8423e5d2f4ca8988bbcff40
        • MD5 SHA1 SHA512

        bg.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS41BC.tmp\[email protected]\content\bg.js
        • Size 8KB
        • SHA256 e34164122a9975fc9ccc45b85b82d2da7a1b4d592f5fc41fd9051bbdb1287e25
        • MD5 SHA1 SHA512 SSDEEP

        zy.xul

        • Path C:\Users\Admin\AppData\Local\Temp\7zS41BC.tmp\[email protected]\content\zy.xul
        • Size 225B
        • SHA256 c996b7cf4867f94dc070376b9af998713bc49ef030a2618ccf2620c398f199dd
        • MD5 SHA1 SHA512

        install.rdf

        • Path C:\Users\Admin\AppData\Local\Temp\7zS41BC.tmp\[email protected]\install.rdf
        • Size 700B
        • SHA256 22ec554ac2ec0be0c31df794250f77494043514ae6c1fe7fbd0ef9655bc536cd
        • MD5 SHA1 SHA512

        50ef9a3e0a84a.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zS41BC.tmp\50ef9a3e0a84a.exe
        • Size 71KB
        • SHA256 d205693516dbaf34cfbd216e825190de4de1412e861bc9cb30ce863907b30d22
        • MD5 SHA1 SHA512 SSDEEP

        50ef9a3e0a883.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7zS41BC.tmp\50ef9a3e0a883.dll
        • Size 116KB
        • SHA256 0648d564b30e13a0819f28e00a9af39a6686a4d29ccd265c7d81548e4fe0f67e
        • MD5 SHA1 SHA512 SSDEEP

        50ef9a3e0a883.tlb

        • Path C:\Users\Admin\AppData\Local\Temp\7zS41BC.tmp\50ef9a3e0a883.tlb
        • Size 2KB
        • SHA256 bd3d85c0136a66b2af79d4d91c1c5700c8931937b7e554d5ece946760ef4a99c
        • MD5 SHA1 SHA512

        50ef9a3e0a65d2.22907895.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS41BC.tmp\ophppbknlbkpmjjgkacahkgomkcpodcj\50ef9a3e0a65d2.22907895.js
        • Size 4KB
        • SHA256 89c9da4673c95899bc7a988dc4f1f112885a4d6197cb4b1c225dde1f6f378474
        • MD5 SHA1 SHA512 SSDEEP

        background.html

        • Path C:\Users\Admin\AppData\Local\Temp\7zS41BC.tmp\ophppbknlbkpmjjgkacahkgomkcpodcj\background.html
        • Size 161B
        • SHA256 b336bfaa139fedc6deefea7a036d21af9daefd5bae702a19aa9a0dd2904194fd
        • MD5 SHA1 SHA512

        content.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS41BC.tmp\ophppbknlbkpmjjgkacahkgomkcpodcj\content.js
        • Size 197B
        • SHA256 fb01e87250ac9985ed08d97f2f99937a52998ea9faebdc88e4071d6517e1ea6b
        • MD5 SHA1 SHA512

        lsdb.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS41BC.tmp\ophppbknlbkpmjjgkacahkgomkcpodcj\lsdb.js
        • Size 559B
        • SHA256 e3cf0049af8b9f6cb4f0223ccb8438f4b0c75863684c944450015868a0c45704
        • MD5 SHA1 SHA512

        manifest.json

        • Path C:\Users\Admin\AppData\Local\Temp\7zS41BC.tmp\ophppbknlbkpmjjgkacahkgomkcpodcj\manifest.json
        • Size 475B
        • SHA256 5ac43caaa60d48d2c5bc8059dc845eb344b31c088207c8da714f7a36d500c69e
        • MD5 SHA1 SHA512

        sqlite.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS41BC.tmp\ophppbknlbkpmjjgkacahkgomkcpodcj\sqlite.js
        • Size 1KB
        • SHA256 97030c67fa5d12778f07ae489ce9663330c9aa1a0b8696a6c251232fab8ebf6f
        • MD5 SHA1 SHA512

        settings.ini

        • Path C:\Users\Admin\AppData\Local\Temp\7zS41BC.tmp\settings.ini
        • Size 6KB
        • SHA256 eb0105c39b990d66dfcc7f72757f6f0f452c152032b6ed8e242215a3a2732acb
        • MD5 SHA1 SHA512 SSDEEP

        UserInfo.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsi42A7.tmp\UserInfo.dll
        • Size 4KB
        • SHA256 564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5
        • MD5 SHA1 SHA512

        nsJSON.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsi42A7.tmp\nsJSON.dll
        • Size 7KB
        • SHA256 49b173504eb9cd07e42a3c4deb84c2cd3f3b49c7fb0858aee43ddfc64660e384
        • MD5 SHA1 SHA512 SSDEEP

        memory/1708-78-0x0000000074900000-0x000000007490A000-memory.dmp