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Analysis

  • max time kernel
    146s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    02/08/2024, 18:59

General

  • Target

    $PLUGINSDIR/nsis7z.dll

  • Size

    391KB

  • MD5

    c6a070b3e68b292bb0efc9b26e85e9cc

  • SHA1

    5a922b96eda6595a68fd0a9051236162ff2e2ada

  • SHA256

    66ac8bd1f273a73e17a3f31d6add739d3cb0330a6417faeda11a9cae00b62d8b

  • SHA512

    8eff8fc16f5bb574bd9483e3b217b67a8986e31497368c06fdaa3a1e93a40aee94a5b31729d01905157b0ae1e556a402f43cd29a4d30a0587e1ec334458a44e8

  • SSDEEP

    6144:KI4T3K6gRPI8G1W3ODli+GIuuu8M1CkJagSdJFCAvgw7nv0Yy6ptK:KBK6gU1YsI+GIuEbgagS7FCyp7cD6po

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\nsis7z.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4836
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsis7z.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2360
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2360 -s 480
        3⤵
        • Program crash
        PID:656
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2360 -ip 2360
    1⤵
      PID:3884

    Network

    MITRE ATT&CK Enterprise v15

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    Downloads