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Analysis

  • max time kernel
    167s
  • max time network
    181s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/12/2022, 11:41

General

  • Target

    e9751abc05c3080651b583ff5f23767870c19590e5b3e7d5753879e57b311af6.dll

  • Size

    236KB

  • MD5

    fd806b38b3d709df59db61825106208b

  • SHA1

    b8b71e9e0d3b7df2878215644bf1a72851930455

  • SHA256

    e9751abc05c3080651b583ff5f23767870c19590e5b3e7d5753879e57b311af6

  • SHA512

    9ff9d5eedc6123d2151fa29b818ca80291491fd1f8fe1e2dc43fdba3a01e8ec61600ddcfdca35d6dd7ccfe2a6e93b83f7e6c7f5aa64357fd4f7187801a59c39a

  • SSDEEP

    1536:Iguo2K86vta10RJQYPIHL+D5IWhxRh/Ci4ucg3/+k5ltr+DRPG8Gz7wk+cQvMf:Go256vS0RJAL+lHPKi40+66iwkD0U

Score
10/10

Malware Config

Signatures

  • Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 4 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 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\e9751abc05c3080651b583ff5f23767870c19590e5b3e7d5753879e57b311af6.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1408
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\e9751abc05c3080651b583ff5f23767870c19590e5b3e7d5753879e57b311af6.dll,#1
      2⤵
      • Adds autorun key to be loaded by Explorer.exe on startup
      • Loads dropped DLL
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4236

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\zhz.dll

    Filesize

    478KB

    MD5

    e99416267b61f52fa5ab994019efd359

    SHA1

    86d31eae707db7fe51d2556394fcf0e8e9f6b0fd

    SHA256

    768c286674371564b5e6095edb56e0a4231f341be895da69cfccca5160029774

    SHA512

    0a1c7579a9c787c2c1bef35f0660e72e74b42824e14ebea63b87ed25ddaf107e3746567bb431cab41a2f6719fad2c22d96e0715a1fe085d75805d7d66f7f05ae

  • memory/4236-134-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/4236-135-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB