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21/09/2024, 11:34 UTC

240921-nprd1azend 10

Analysis

  • max time kernel
    122s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/09/2024, 11:34 UTC

General

  • Target

    $PLUGINSDIR/WinShell.dll

  • Size

    3KB

  • MD5

    1cc7c37b7e0c8cd8bf04b6cc283e1e56

  • SHA1

    0b9519763be6625bd5abce175dcc59c96d100d4c

  • SHA256

    9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6

  • SHA512

    7acf7f8e68aa6066b59ca9f2ae2e67997e6b347bc08eb788d2a119b3295c844b5b9606757168e8d2fbd61c2cda367bf80e9e48c9a52c28d5a7a00464bfd2048f

Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\WinShell.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1708
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\WinShell.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3688
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3688 -s 612
        3⤵
        • Program crash
        PID:744
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3688 -ip 3688
    1⤵
      PID:2648
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4448,i,1330210614411927383,9239043499051775691,262144 --variations-seed-version --mojo-platform-channel-handle=4408 /prefetch:8
      1⤵
        PID:4664

      Network

      • flag-us
        DNS
        8.8.8.8.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        8.8.8.8.in-addr.arpa
        IN PTR
        Response
        8.8.8.8.in-addr.arpa
        IN PTR
        dnsgoogle
      • flag-us
        DNS
        228.249.119.40.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        228.249.119.40.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        172.214.232.199.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        172.214.232.199.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        20.160.190.20.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        20.160.190.20.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
        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
        241.150.49.20.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        241.150.49.20.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        56.163.245.4.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        56.163.245.4.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        15.164.165.52.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        15.164.165.52.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        77.190.18.2.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        77.190.18.2.in-addr.arpa
        IN PTR
        Response
        77.190.18.2.in-addr.arpa
        IN PTR
        a2-18-190-77deploystaticakamaitechnologiescom
      • 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
        204.201.50.20.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        204.201.50.20.in-addr.arpa
        IN PTR
        Response
      No results found
      • 8.8.8.8:53
        8.8.8.8.in-addr.arpa
        dns
        66 B
        90 B
        1
        1

        DNS Request

        8.8.8.8.in-addr.arpa

      • 8.8.8.8:53
        228.249.119.40.in-addr.arpa
        dns
        73 B
        159 B
        1
        1

        DNS Request

        228.249.119.40.in-addr.arpa

      • 8.8.8.8:53
        172.214.232.199.in-addr.arpa
        dns
        74 B
        128 B
        1
        1

        DNS Request

        172.214.232.199.in-addr.arpa

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

        DNS Request

        20.160.190.20.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
        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
        241.150.49.20.in-addr.arpa
        dns
        72 B
        158 B
        1
        1

        DNS Request

        241.150.49.20.in-addr.arpa

      • 8.8.8.8:53
        56.163.245.4.in-addr.arpa
        dns
        71 B
        157 B
        1
        1

        DNS Request

        56.163.245.4.in-addr.arpa

      • 8.8.8.8:53
        15.164.165.52.in-addr.arpa
        dns
        72 B
        146 B
        1
        1

        DNS Request

        15.164.165.52.in-addr.arpa

      • 8.8.8.8:53
        77.190.18.2.in-addr.arpa
        dns
        70 B
        133 B
        1
        1

        DNS Request

        77.190.18.2.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
        204.201.50.20.in-addr.arpa
        dns
        72 B
        158 B
        1
        1

        DNS Request

        204.201.50.20.in-addr.arpa

      MITRE ATT&CK Enterprise v15

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