Analysis

  • max time kernel
    146s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-04-2024 00:59

General

  • Target

    libmatroska.dll

  • Size

    661KB

  • MD5

    7722dc5d512aa597e53cb87f1c43bf7c

  • SHA1

    16f201a6f16ccb05304c44b26e9ab550da0534dd

  • SHA256

    9b4f7888b3461898827f3e64871f2876a0e2a5ab273c3c1d190d4f871cf9100f

  • SHA512

    050bc477ae6bfaa83fee2dc463e8f1dab245355e0ddc963181612ff3662feff379d6e1130b23ae38a54b86f4767f61a7444f842ad16cd1600f6bbda436682aa7

  • SSDEEP

    6144:ufZ5b+/qC4IGFlSousX4ZIgywA5+SLxEP4I6vLlr8u35wk+G/28vtWjYo8q9WLyV:u+qCBGeoDLgyV3qIuotWjYu2

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\libmatroska.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4016
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\libmatroska.dll,#1
      2⤵
        PID:636
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 636 -s 604
          3⤵
          • Program crash
          PID:2400
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 636 -ip 636
      1⤵
        PID:1820

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/636-0-0x000000006E1C0000-0x000000006E26E000-memory.dmp

        Filesize

        696KB

      • memory/636-1-0x000000006F300000-0x000000006F35C000-memory.dmp

        Filesize

        368KB