Analysis

  • max time kernel
    142s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-06-2024 16:48

General

  • Target

    91vpn(3.5.4)/91vpn/msvcp100.dll

  • Size

    411KB

  • MD5

    03e9314004f504a14a61c3d364b62f66

  • SHA1

    0aa3caac24fdf9d9d4c618e2bbf0a063036cd55d

  • SHA256

    a3ba6421991241bea9c8334b62c3088f8f131ab906c3cc52113945d05016a35f

  • SHA512

    2fcff4439d2759d93c57d49b24f28ae89b7698e284e76ac65fe2b50bdefc23a8cc3c83891d671de4e4c0f036cef810856de79ac2b028aa89a895bf35abff8c8d

  • SSDEEP

    12288:iHEqYsrMWIqz473PTiPoH/aGhUgiW6QR7t5qv3Ooc8UHkC2eKq87:iH9YsIWIW4rPTiPofaDv3Ooc8UHkC2e8

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\91vpn(3.5.4)\91vpn\msvcp100.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3068
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\91vpn(3.5.4)\91vpn\msvcp100.dll,#1
      2⤵
        PID:1476
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1476 -s 604
          3⤵
          • Program crash
          PID:3868
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1476 -ip 1476
      1⤵
        PID:4424

      Network

      MITRE ATT&CK Matrix

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      Downloads