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Analysis

  • max time kernel
    66s
  • max time network
    52s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-es
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-eslocale:es-esos:windows10-2004-x64systemwindows
  • submitted
    01/05/2024, 13:07 UTC

General

  • Target

    $PLUGINSDIR/BgWorker.dll

  • Size

    2KB

  • MD5

    33ec04738007e665059cf40bc0f0c22b

  • SHA1

    4196759a922e333d9b17bda5369f14c33cd5e3bc

  • SHA256

    50f735ab8f3473423e6873d628150bbc0777be7b4f6405247cddf22bb00fb6be

  • SHA512

    2318b01f0c2f2f021a618ca3e6e5c24a94df5d00154766b77160203b8b0a177c8581c7b688ffe69be93a69bc7fd06b8a589844d42447f5060fb4bcf94d8a9aef

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\BgWorker.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4856
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\BgWorker.dll,#1
      2⤵
        PID:1276
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1276 -s 604
          3⤵
          • Program crash
          PID:3584
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1276 -ip 1276
      1⤵
        PID:3172

      Network

      • flag-us
        DNS
        g.bing.com
        Remote address:
        8.8.8.8:53
        Request
        g.bing.com
        IN A
      • flag-us
        DNS
        g.bing.com
        Remote address:
        8.8.8.8:53
        Request
        g.bing.com
        IN A
      • flag-us
        DNS
        g.bing.com
        Remote address:
        8.8.8.8:53
        Request
        g.bing.com
        IN A
      • flag-us
        DNS
        g.bing.com
        Remote address:
        8.8.8.8:53
        Request
        g.bing.com
        IN A
      • flag-us
        DNS
        g.bing.com
        Remote address:
        8.8.8.8:53
        Request
        g.bing.com
        IN A
      • flag-us
        DNS
        g.bing.com
        Remote address:
        8.8.8.8:53
        Request
        g.bing.com
        IN A
      • flag-us
        DNS
        g.bing.com
        Remote address:
        8.8.8.8:53
        Request
        g.bing.com
        IN A
      • flag-us
        DNS
        g.bing.com
        Remote address:
        8.8.8.8:53
        Request
        g.bing.com
        IN A
      • flag-us
        DNS
        g.bing.com
        Remote address:
        8.8.8.8:53
        Request
        g.bing.com
        IN A
      • flag-us
        DNS
        g.bing.com
        Remote address:
        8.8.8.8:53
        Request
        g.bing.com
        IN A
      No results found
      • 8.8.8.8:53
        g.bing.com
        dns
        280 B
        5

        DNS Request

        g.bing.com

        DNS Request

        g.bing.com

        DNS Request

        g.bing.com

        DNS Request

        g.bing.com

        DNS Request

        g.bing.com

      • 8.8.8.8:53
        g.bing.com
        dns
        280 B
        5

        DNS Request

        g.bing.com

        DNS Request

        g.bing.com

        DNS Request

        g.bing.com

        DNS Request

        g.bing.com

        DNS Request

        g.bing.com

      MITRE ATT&CK Matrix

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