Analysis

  • max time kernel
    144s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-01-2024 15:45

General

  • Target

    $PLUGINSDIR/sign.dll

  • Size

    32KB

  • MD5

    d30b6c8d2f38e6abbb2f39bac0808bc0

  • SHA1

    f1bca6416ae0f4c52e5b076381c72b18472954d8

  • SHA256

    1f2b4549129c1b98c5674fe363a0267376dfd623323c5815216043dfa7fe1f2a

  • SHA512

    3bf03d839ffa04c1d5eeb89a6405820ab2eea3548050e730255df7e84dfc729157c0d5c7eceeead5e8e1f4aa23777fe78a5582f0772c85bf0f793dd245a887e8

  • SSDEEP

    768:ciIqw3a6iG3SvsvUccH/ixF5cGIv5pXi:ci23avGCvycH/ifXuc

Score
7/10
upx

Malware Config

Signatures

  • UPX packed file 2 IoCs

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

  • 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\sign.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1160
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\sign.dll,#1
      2⤵
        PID:2732
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2732 -s 716
          3⤵
          • Program crash
          PID:1812
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2732 -ip 2732
      1⤵
        PID:1856

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

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      Downloads

      • memory/2732-0-0x0000000074BA0000-0x0000000074BB7000-memory.dmp

        Filesize

        92KB

      • memory/2732-1-0x0000000074BA0000-0x0000000074BB7000-memory.dmp

        Filesize

        92KB