Analysis

  • max time kernel
    93s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/02/2024, 03:58

General

  • Target
    9ce53c46bd9310fb0be5f9c17215a9a5.exe
  • Size 245KB
  • Sample240215-ejg4psga5v
  • SHA256 40bf21b30bac331014a644f609d8f933139888b551347d46781121971edaa166
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • 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 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).

  • NSIS installer 4 IoCs
  • Modifies registry class 63 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9ce53c46bd9310fb0be5f9c17215a9a5.exe
    "C:\Users\Admin\AppData\Local\Temp\9ce53c46bd9310fb0be5f9c17215a9a5.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3140
    • C:\Users\Admin\AppData\Local\Temp\7zS9DD6.tmp\507441136cf4e.exe
      .\507441136cf4e.exe /s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • System policy modification
      PID:3480

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        uninstall.exe

        • Path C:\ProgramData\wxDownload\uninstall.exe
        • Size 48KB
        • SHA256 daa28b0757a7ff5cba97ae26e2fe2f9ad6322c12f30aaee37180995ad2cba457
        • MD5 SHA1 SHA512 SSDEEP

        507441136cf4e.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zS9DD6.tmp\507441136cf4e.exe
        • Size 65KB
        • SHA256 e0571dcebce27429729cd4468016107e9b6296dd5086b186c15527f04bf605ac
        • MD5 SHA1 SHA512 SSDEEP

        507441136cf87.ocx

        • Path C:\Users\Admin\AppData\Local\Temp\7zS9DD6.tmp\507441136cf87.ocx
        • Size 151KB
        • SHA256 6cfc7fb43715fb13c53ab2a29b68f3a0a0f285c85d1b1443f2c5e73526646851
        • MD5 SHA1 SHA512 SSDEEP

        507441136cfc0.html

        • Path C:\Users\Admin\AppData\Local\Temp\7zS9DD6.tmp\507441136cfc0.html
        • Size 4KB
        • SHA256 c5bc93a39496c960d54c4419db1d9529e5cedcf0f850280ab41ccc90927c39a4
        • MD5 SHA1 SHA512 SSDEEP

        507441136cff9.js

        • Path C:\Users\Admin\AppData\Local\Temp\7zS9DD6.tmp\507441136cff9.js
        • Size 9B
        • SHA256 f560d76474380da948a0c5ab8682dc026822d9685268c592f315224b1b968bf6
        • MD5 SHA1 SHA512

        settings.ini

        • Path C:\Users\Admin\AppData\Local\Temp\7zS9DD6.tmp\settings.ini
        • Size 753B
        • SHA256 16d4dadb006c12c591f0f3805db433445ed858f5461ec5f4d36be113abca71ea
        • MD5 SHA1 SHA512

        UserInfo.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsa9F8D.tmp\UserInfo.dll
        • Size 4KB
        • SHA256 564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5
        • MD5 SHA1 SHA512