Analysis

  • max time kernel
    100s
  • max time network
    101s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/08/2024, 03:55

General

  • Target
    544edf100b10c476b64a94d57bcdb420N.exe
  • Size 263KB
  • Sample240825-eham8swbkq
  • SHA256 6bd8752721961021fe3356cc8d86fe4eb0a047da99d7a12a6b259bc8a8e8a69c
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\544edf100b10c476b64a94d57bcdb420N.exe
    "C:\Users\Admin\AppData\Local\Temp\544edf100b10c476b64a94d57bcdb420N.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:5024
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
      "C:\Users\Admin\AppData\Local\Temp\544edf100b10c476b64a94d57bcdb420N.exe"
      2⤵
        PID:3212
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5024 -s 876
        2⤵
        • Program crash
        PID:4608
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 5024 -ip 5024
      1⤵
        PID:4260

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            System.dll

            • Path C:\Users\Admin\AppData\Local\Temp\nsu9D9A.tmp\System.dll
            • Size 11KB
            • SHA256 6fcea34c8666b06368379c6c402b5321202c11b00889401c743fb96c516c679e
            • MD5 SHA1 SHA512 SSDEEP