Analysis

  • max time kernel
    138s
  • max time network
    164s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/03/2025, 19:07

General

  • Target

    setup/3dfx/isnt/shell.dll

  • Size

    65KB

  • MD5

    33bb71935330bce0caa9404d0d397482

  • SHA1

    ab5da592af6258d0b26aecb0767a56f3195afa6b

  • SHA256

    70df8b8fd6596d3b60b2fec17477d5225b4b71b39ca56a7a90508dc00aed2271

  • SHA512

    2b070de295ed487c597e17c649f78c0849070058c1637a3708f8c68df1efc5680272ab6ec9083811648e3f5a95efab0ed999bd30e45da58368cb3b14cc56878b

  • SSDEEP

    1536:/Hlk69OS5gquMfVA6qrtwrlS8cv2uok6ttZLnIJ:/CPSLuMfVqRwBTcuuJ6ttZLny

Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\setup\3dfx\isnt\shell.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1636
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\setup\3dfx\isnt\shell.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3500
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3500 -s 604
        3⤵
        • Program crash
        PID:228
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3500 -ip 3500
    1⤵
      PID:2824

    Network

    MITRE ATT&CK Enterprise v15

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    Downloads