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Analysis

  • max time kernel
    140s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231025-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231025-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/11/2023, 10:08

General

  • Target

    NEAS.4bcf6f7fdc714613dae6c5df5cb0bbd0_JC.dll

  • Size

    76KB

  • MD5

    4bcf6f7fdc714613dae6c5df5cb0bbd0

  • SHA1

    947407067c3d22741b066e4fe862b5daa53cb55f

  • SHA256

    e0bf9850654abb33a62318006403e767d59b76b5e2b8cd879afb9fcfed6d53d7

  • SHA512

    ca38c44bda7a299120faa7f017b53839b314bbb04ee19ad1885a65f05b77bf325536c230ff6ee6f12672edb9f66d2440fbaa8c2bb1225691db438197c3c9522e

  • SSDEEP

    1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Z+V40MH:c8y93KQjy7G55riF1cMo03040i

Score
7/10
upx

Malware Config

Signatures

  • 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 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.4bcf6f7fdc714613dae6c5df5cb0bbd0_JC.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:748
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.4bcf6f7fdc714613dae6c5df5cb0bbd0_JC.dll,#1
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3732
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3732 -s 672
        3⤵
        • Program crash
        PID:3268
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3732 -ip 3732
    1⤵
      PID:2356

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/3732-0-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/3732-1-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB