Analysis

  • max time kernel
    100s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-09-2022 01:45

General

  • Target

    fz.dll

  • Size

    808KB

  • MD5

    bf59424bc6cce2bbf12b1ba84b6f2ae2

  • SHA1

    1b4d6200d22a063fc2c6b4043fe568ffd6dc2057

  • SHA256

    6df2763332209ba83ed38800541dda57a5bc605398083c8d3dc9797adc6639b2

  • SHA512

    74974ed00e35793d8af6dce4655aebe93999037e23650264359dbc15b99e98135b30d5ca7dbf3f61e94fc1cac87c038bd3a728a56326520e4d7315bc87971a85

  • SSDEEP

    12288:2mLrKI5p+OO+maTckE6rjR4QYoXXsqFzzG5a65qhWlC:2mPtObMznjRbYw8Z5aWC

Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\fz.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4980
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\fz.dll,#1
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2036
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2036 -s 716
        3⤵
        • Program crash
        PID:4236
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 2036 -ip 2036
    1⤵
      PID:1672

    Network

    MITRE ATT&CK Matrix

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    Downloads