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Analysis

  • max time kernel
    140s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    17/09/2023, 16:33

General

  • Target

    040ab86c46bcf0c5b1357fc2e56fdb20_JC.dll

  • Size

    76KB

  • MD5

    040ab86c46bcf0c5b1357fc2e56fdb20

  • SHA1

    ad8da47943fbf76f0ebf5310292ea675ff3a48a7

  • SHA256

    7fe6799ea4ffd5af76a7fbe90b70b1033b80741e6356c010df5c96572e39ce28

  • SHA512

    e9b02786602da83bc5209f8d8f66aa057f04152a3ccf9a8d42f1ee2585ccde6677cf00bb7ed499add14ca20c6c6fc2d40f2e06df64e669f53b704239bdce3d5a

  • SSDEEP

    1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Z7FaC/F:c8y93KQjy7G55riF1cMo03jT/F

Score
8/10

Malware Config

Signatures

  • Modifies AppInit DLL entries 2 TTPs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Program crash 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\040ab86c46bcf0c5b1357fc2e56fdb20_JC.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2600
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\040ab86c46bcf0c5b1357fc2e56fdb20_JC.dll,#1
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2796
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2796 -s 332
        3⤵
        • Program crash
        PID:2160

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/2796-0-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2796-2-0x0000000000070000-0x0000000000071000-memory.dmp

    Filesize

    4KB

  • memory/2796-1-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB