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Analysis

  • max time kernel
    95s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/10/2022, 08:33

General

  • Target

    32cfd991ad5df58309fcee17895be18e2e0417ba5425fb3e94841f03216e9751.exe

  • Size

    101KB

  • MD5

    5c679d7fedebcddbc49c41c26d8ae130

  • SHA1

    4e9aac90acb05e45b535a801186cb6ded17891fd

  • SHA256

    32cfd991ad5df58309fcee17895be18e2e0417ba5425fb3e94841f03216e9751

  • SHA512

    e0409287484b15ba8c735b5241f8a0b47327976e6b09e4d7fc47fa3b7f37a80234a38c255572e0f167ee208fa5d116954f4c682620101abe83ddc156e38a2408

  • SSDEEP

    3072:ajbgbntDbgbntDbgbntDbgbntDbgbntDbgbntW5n2ThWsNexPnCrnd:ajbSxbSxbSxbSxbSxbSankP+6bd

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Drops file in Drivers directory 2 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • UPX packed file 2 IoCs

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

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Modifies WinLogon 2 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\32cfd991ad5df58309fcee17895be18e2e0417ba5425fb3e94841f03216e9751.exe
    "C:\Users\Admin\AppData\Local\Temp\32cfd991ad5df58309fcee17895be18e2e0417ba5425fb3e94841f03216e9751.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Drops file in Drivers directory
    • Sets service image path in registry
    • Adds Run key to start application
    • Modifies WinLogon
    • Suspicious use of WriteProcessMemory
    PID:4100
    • C:\Windows\SysWOW64\reg.exe
      reg delete "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects" /f
      2⤵
      • Installs/modifies Browser Helper Object
      PID:1544

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/4100-132-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4100-134-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB