Analysis

  • max time kernel
    90s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/02/2024, 05:01 UTC

General

  • Target

    $PLUGINSDIR/StdUtils.dll

  • Size

    100KB

  • MD5

    c6a6e03f77c313b267498515488c5740

  • SHA1

    3d49fc2784b9450962ed6b82b46e9c3c957d7c15

  • SHA256

    b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e

  • SHA512

    9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803

  • SSDEEP

    3072:WNuZmJ9TDP3ahD2TF7Rq9cJNPhF9vyHf:WNuZ81zaAFHhF9v

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\StdUtils.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4520
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\StdUtils.dll,#1
      2⤵
        PID:4920
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4920 -s 628
          3⤵
          • Program crash
          PID:3684
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4920 -ip 4920
      1⤵
        PID:3932

      Network

      • flag-us
        DNS
        183.142.211.20.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        183.142.211.20.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        240.221.184.93.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        240.221.184.93.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        95.221.229.192.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        95.221.229.192.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        136.32.126.40.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        136.32.126.40.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        133.211.185.52.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        133.211.185.52.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        149.220.183.52.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        149.220.183.52.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        103.169.127.40.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        103.169.127.40.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        56.126.166.20.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        56.126.166.20.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        178.223.142.52.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        178.223.142.52.in-addr.arpa
        IN PTR
        Response
      • 138.91.171.81:80
        104 B
        2
      • 8.8.8.8:53
        183.142.211.20.in-addr.arpa
        dns
        73 B
        159 B
        1
        1

        DNS Request

        183.142.211.20.in-addr.arpa

      • 8.8.8.8:53
        240.221.184.93.in-addr.arpa
        dns
        73 B
        144 B
        1
        1

        DNS Request

        240.221.184.93.in-addr.arpa

      • 8.8.8.8:53
        95.221.229.192.in-addr.arpa
        dns
        73 B
        144 B
        1
        1

        DNS Request

        95.221.229.192.in-addr.arpa

      • 8.8.8.8:53
        136.32.126.40.in-addr.arpa
        dns
        72 B
        158 B
        1
        1

        DNS Request

        136.32.126.40.in-addr.arpa

      • 8.8.8.8:53
        133.211.185.52.in-addr.arpa
        dns
        73 B
        147 B
        1
        1

        DNS Request

        133.211.185.52.in-addr.arpa

      • 8.8.8.8:53
        149.220.183.52.in-addr.arpa
        dns
        73 B
        147 B
        1
        1

        DNS Request

        149.220.183.52.in-addr.arpa

      • 8.8.8.8:53
        103.169.127.40.in-addr.arpa
        dns
        73 B
        147 B
        1
        1

        DNS Request

        103.169.127.40.in-addr.arpa

      • 8.8.8.8:53
        56.126.166.20.in-addr.arpa
        dns
        72 B
        158 B
        1
        1

        DNS Request

        56.126.166.20.in-addr.arpa

      • 8.8.8.8:53
        178.223.142.52.in-addr.arpa
        dns
        73 B
        147 B
        1
        1

        DNS Request

        178.223.142.52.in-addr.arpa

      MITRE ATT&CK Matrix

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