Analysis

  • max time kernel
    147s
  • 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
    08/04/2024, 06:54

General

  • Target
    e6e159aeb4391a116e93dcf549752ab7_JaffaCakes118.exe
  • Size 249KB
  • Sample240408-hn9lasbb64
  • SHA256 58a0d0b4797616c67df94a634cd207202af01f43bf825fe6d64fe8a07fc57d36
  • 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.

  • 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\e6e159aeb4391a116e93dcf549752ab7_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e6e159aeb4391a116e93dcf549752ab7_JaffaCakes118.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4584
    • C:\Users\Admin\AppData\Local\Temp\7zS737A.tmp\50e53c6552a62.exe
      .\50e53c6552a62.exe /s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • System policy modification
      PID:2740

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        uninstall.exe

        • Path C:\ProgramData\Zoomex\uninstall.exe
        • Size 48KB
        • SHA256 43c3e8d7aa00a299f084db17e384aa96de508565f82264ee88bd9c7647fa9fc9
        • MD5 SHA1 SHA512 SSDEEP

        bootstrap.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS737A.tmp\[email protected]\bootstrap.js
        • Size 2KB
        • SHA256 81d6cbc13a0c87a3bac6f96b2aaa4c31b6a685d4e43836a62356135a511c59c2
        • MD5 SHA1 SHA512

        chrome.manifest

        • Path C:\Users\Admin\AppData\Local\Temp\7zS737A.tmp\[email protected]\chrome.manifest
        • Size 116B
        • SHA256 4c9cd18366e099757e879170ce2874706c73293c0c6efbf4a3862520550fe998
        • MD5 SHA1 SHA512

        bg.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS737A.tmp\[email protected]\content\bg.js
        • Size 8KB
        • SHA256 60eb2e24009ce4e85af89fef037ac5d7d2f3eefec63c44d985a56a5f4cc59c81
        • MD5 SHA1 SHA512 SSDEEP

        zy.xul

        • Path C:\Users\Admin\AppData\Local\Temp\7zS737A.tmp\[email protected]\content\zy.xul
        • Size 225B
        • SHA256 176615127538bdc2722f18bf9846a84370c72aa3a121fe9443d692b442e68b6e
        • MD5 SHA1 SHA512

        install.rdf

        • Path C:\Users\Admin\AppData\Local\Temp\7zS737A.tmp\[email protected]\install.rdf
        • Size 700B
        • SHA256 59d83aefb5ba8fc1292ed6f6b431533441ba4214b36110ea01a16aedada60cc1
        • MD5 SHA1 SHA512

        50e53c6552a62.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zS737A.tmp\50e53c6552a62.exe
        • Size 70KB
        • SHA256 5e74f0e710c067ad82301c7c14ed6afb138f974f351042cfe0ecd275cea2612c
        • MD5 SHA1 SHA512 SSDEEP

        50e53c6552a9a.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7zS737A.tmp\50e53c6552a9a.dll
        • Size 115KB
        • SHA256 73c44d8943947e3cf9ecabdeea4d9a37652614f5490a1f972816be4123795125
        • MD5 SHA1 SHA512 SSDEEP

        50e53c6552a9a.tlb

        • Path C:\Users\Admin\AppData\Local\Temp\7zS737A.tmp\50e53c6552a9a.tlb
        • Size 2KB
        • SHA256 a602c790bcf424c154a082a88a495b256dd5456f627943568c358c74f606c568
        • MD5 SHA1 SHA512

        nlkkbndppihfjcjcijmnooahegmkaekc.crx

        • Path C:\Users\Admin\AppData\Local\Temp\7zS737A.tmp\nlkkbndppihfjcjcijmnooahegmkaekc.crx
        • Size 8KB
        • SHA256 750eeb5dd454e89693c71bc8ca67821027138d432c836be93ef016a08992e5c4
        • MD5 SHA1 SHA512 SSDEEP

        settings.ini

        • Path C:\Users\Admin\AppData\Local\Temp\7zS737A.tmp\settings.ini
        • Size 6KB
        • SHA256 20a51f89a205f1ee5fa0f2fd11f87ad34c1aac9b987361f19ceb65de23b1f7e7
        • MD5 SHA1 SHA512 SSDEEP

        UserInfo.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nst7560.tmp\UserInfo.dll
        • Size 4KB
        • SHA256 564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5
        • MD5 SHA1 SHA512

        nsJSON.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nst7560.tmp\nsJSON.dll
        • Size 7KB
        • SHA256 49b173504eb9cd07e42a3c4deb84c2cd3f3b49c7fb0858aee43ddfc64660e384
        • MD5 SHA1 SHA512 SSDEEP

        memory/2740-52-0x0000000074090000-0x000000007409A000-memory.dmp