Overview

overview

7

Static

static

7

9ed800cfac...71.exe

windows7-x64

7

9ed800cfac...71.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/02/2024, 23:25

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General

  • Target
    9ed800cfac69966d7e7b64b55c16aa71.exe
  • Size 87KB
  • Sample240215-3edsgsbc4y
  • SHA256 f4e1a09759f6903c7cea529fd5587758338ceb4437a2fafdbdfa76ef487bf621
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10
adwarediscoverypersistencestealerupx

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • UPX packed file 2 IoCs

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

    upx
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

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

    stealeradware
  • Drops file in Program Files directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 6 IoCs
    adwarespyware
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9ed800cfac69966d7e7b64b55c16aa71.exe
    "C:\Users\Admin\AppData\Local\Temp\9ed800cfac69966d7e7b64b55c16aa71.exe"
    1⤵
    • Drops file in Program Files directory
    • Modifies Internet Explorer settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1148
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 /s "C:\Program Files (x86)\TopGuide\TopGuide.dll"
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      PID:4972
    • C:\Program Files (x86)\TopGuide\TopGuide.exe
      "C:\Program Files (x86)\TopGuide\TopGuide.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3208
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Program Files (x86)\TopGuide\TopGuide.dll"
        3⤵
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies registry class
        PID:1964

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        TopGuide.dll
        • Path C:\Program Files (x86)\TopGuide\TopGuide.dll
        • Size 105KB
        • SHA256 0c1113cec21ed5a03fdd50f4602c362a161c55e4681788328624c296e49a70a5
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        TopGuide.exe
        • Path C:\Program Files (x86)\TopGuide\TopGuide.exe
        • Size 45KB
        • SHA256 d8fd95ab37afabedcd5d6a76785897b70770644ed3ab8a2b274dfd6ed971ea12
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        adc.dll
        • Path C:\Program Files (x86)\TopGuide\adc.dll
        • Size 23KB
        • SHA256 b6af553defd463dd7d63b3c65b27d81a1ec5bb325cdaf57d3d42792e8d0dd361
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        memory/1148-0-0x0000000000400000-0x000000000043F000-memory.dmp
        Download

        memory/1148-17-0x0000000000400000-0x000000000043F000-memory.dmp
        Download