Analysis

  • max time kernel
    89s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/01/2024, 00:51

General

  • Target
    71012cd5d443d4758606c314b30a4190.exe
  • Size 249KB
  • Sample240124-a7p21aech8
  • SHA256 28d97b2eda5f18dae371d104dc52eb5d19da360d0b818a2455973eb8d5d10985
  • 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\71012cd5d443d4758606c314b30a4190.exe
    "C:\Users\Admin\AppData\Local\Temp\71012cd5d443d4758606c314b30a4190.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4176
    • C:\Users\Admin\AppData\Local\Temp\7zS4F68.tmp\50dc76189ef79.exe
      .\50dc76189ef79.exe /s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • System policy modification
      PID:4720

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        uninstall.exe

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

        bootstrap.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4F68.tmp\[email protected]\bootstrap.js
        • Size 2KB
        • SHA256 3b4ae94a591c47e862b3e35082a6f561801247f76393eb15d896e23d6d984f53
        • MD5 SHA1 SHA512

        chrome.manifest

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4F68.tmp\[email protected]\chrome.manifest
        • Size 116B
        • SHA256 f740b72d53b2d3371d26711911e2b6a14e0cb6c8a85cafbd5ada55db6a84a503
        • MD5 SHA1 SHA512

        bg.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4F68.tmp\[email protected]\content\bg.js
        • Size 8KB
        • SHA256 1ad39b8bf5b93a82c18509179429919eee37d8b7630688af2b6dd0732c321e6c
        • MD5 SHA1 SHA512 SSDEEP

        zy.xul

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4F68.tmp\[email protected]\content\zy.xul
        • Size 225B
        • SHA256 e306231b5e8e2305205bbb5fd9e94f1d8591718dd1dc8b13bd1a14f23855da43
        • MD5 SHA1 SHA512

        install.rdf

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4F68.tmp\[email protected]\install.rdf
        • Size 700B
        • SHA256 8fcf73bd871f765019a37a9c6b41eb8914e98eeb7093dc2f3b774aac27c3af9a
        • MD5 SHA1 SHA512

        50dc76189ef79.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4F68.tmp\50dc76189ef79.exe
        • Size 70KB
        • SHA256 5e74f0e710c067ad82301c7c14ed6afb138f974f351042cfe0ecd275cea2612c
        • MD5 SHA1 SHA512 SSDEEP

        50dc76189efb2.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4F68.tmp\50dc76189efb2.dll
        • Size 115KB
        • SHA256 73c44d8943947e3cf9ecabdeea4d9a37652614f5490a1f972816be4123795125
        • MD5 SHA1 SHA512 SSDEEP

        50dc76189efb2.tlb

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4F68.tmp\50dc76189efb2.tlb
        • Size 2KB
        • SHA256 a602c790bcf424c154a082a88a495b256dd5456f627943568c358c74f606c568
        • MD5 SHA1 SHA512

        fognmihfofkgkekckagdeodemmdfaoej.crx

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4F68.tmp\fognmihfofkgkekckagdeodemmdfaoej.crx
        • Size 8KB
        • SHA256 9eea2fa78d5a999858fca7ebd286d6d99e1226290753bba2cbf1d33b93deee7b
        • MD5 SHA1 SHA512 SSDEEP

        settings.ini

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4F68.tmp\settings.ini
        • Size 6KB
        • SHA256 1b1dfb339ad4fa3e09add813d79c756243a10835a72ee8cc2f310f7d28de7881
        • MD5 SHA1 SHA512 SSDEEP

        UserInfo.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsy5005.tmp\UserInfo.dll
        • Size 4KB
        • SHA256 564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5
        • MD5 SHA1 SHA512

        nsJSON.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsy5005.tmp\nsJSON.dll
        • Size 7KB
        • SHA256 49b173504eb9cd07e42a3c4deb84c2cd3f3b49c7fb0858aee43ddfc64660e384
        • MD5 SHA1 SHA512 SSDEEP

        memory/4720-53-0x0000000074E90000-0x0000000074E9A000-memory.dmp