Analysis

  • max time kernel
    50s
  • max time network
    53s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/06/2024, 10:37

General

  • Target
    FFModules/avcodec-52.dll
  • Size 7.3MB
  • Sample240612-mn9zaavepr
  • SHA256 84ddc7e62dfc9d53303f8529c7cd18a6dfb903319dfe5eb76c9fb29a5276cf7a
  • MD5 SHA1 SHA512 SSDEEP
Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\FFModules\avcodec-52.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1400
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\FFModules\avcodec-52.dll,#1
      2⤵
        PID:4060
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4060 -s 616
          3⤵
          • Program crash
          PID:2516
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4060 -ip 4060
      1⤵
        PID:1488

      Network

            MITRE ATT&CK Matrix

            Replay Monitor

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            Downloads

            memory/4060-0-0x0000000000950000-0x0000000000965000-memory.dmp

            memory/4060-1-0x000000006AD40000-0x000000006B8FC000-memory.dmp

            memory/4060-2-0x000000006AD40000-0x000000006B8FC000-memory.dmp

            memory/4060-4-0x0000000000950000-0x0000000000965000-memory.dmp

            memory/4060-3-0x0000000061180000-0x000000006118E000-memory.dmp