Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/06/2024, 09:39

General

  • Target
    $PLUGINSDIR/prubyqu.dll
  • Size 138KB
  • Sample240603-lmr7eaac8v
  • SHA256 40ebf253af2d6f47f627365e301200aea630fa2ed8a115f4a467c3e9e7fc92a4
  • 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\$PLUGINSDIR\prubyqu.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2784
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\prubyqu.dll,#1
      2⤵
        PID:3860
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3860 -s 600
          3⤵
          • Program crash
          PID:4296
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3860 -ip 3860
      1⤵
        PID:1536

      Network

            MITRE ATT&CK Matrix

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            Downloads