Analysis

  • max time kernel
    92s
  • max time network
    122s
  • 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, 02:25

General

  • Target
    MainInstallerAutoEmbedded.exe
  • Size 796KB
  • Sample240215-cv98hsfb32
  • SHA256 e288d49f6011dcd3f893e54ceafda9b6b491543966521c483064a7df43e5bdd2
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MainInstallerAutoEmbedded.exe
    "C:\Users\Admin\AppData\Local\Temp\MainInstallerAutoEmbedded.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1560
    • C:\Users\Admin\AppData\Local\Temp\SetupAuto.exe
      C:\Users\Admin\AppData\Local\Temp\SetupAuto.exe /PID=0 /NOTIFY=0 /FFR=1 /FFP=0
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:4944

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        SetupAuto.exe

        • Path C:\Users\Admin\AppData\Local\Temp\SetupAuto.exe
        • Size 512KB
        • SHA256 f552d818f17841efb7f06803ecd2479fe5c9b2a0d3c4dad2c9d90b42e2e9d7d5
        • MD5 SHA1 SHA512 SSDEEP

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsb4B42.tmp\System.dll
        • Size 11KB
        • SHA256 dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f
        • MD5 SHA1 SHA512 SSDEEP

        InstallOptions.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsh4BFE.tmp\InstallOptions.dll
        • Size 14KB
        • SHA256 c9cd5c9609e70005926ae5171726a4142ffbcccc771d307efcd195dafc1e6b4b
        • MD5 SHA1 SHA512 SSDEEP

        ioSpecial.ini

        • Path C:\Users\Admin\AppData\Local\Temp\nsh4BFE.tmp\ioSpecial.ini
        • Size 694B
        • SHA256 0265ac173e8ea7d2a20e5f1504782e01cca9762dc67e4b94e48232c65ceb8c62
        • MD5 SHA1 SHA512