Analysis

  • max time kernel
    150s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    30/03/2025, 20:53

General

  • Target

    custom_Suiika_V1_03/Custom_Suiika_V1_03_4k/Expressions/Hairbuns (low).exp3.json

  • Size

    1KB

  • MD5

    01fe79409b2994ee1421e24d9406e854

  • SHA1

    b5cbc73cc13542a181c8cbb7673e4b311cb4038f

  • SHA256

    a11034a285fb4755d5cc021f7e4de224444d86faf416106909791f81a69446c9

  • SHA512

    b7f4d150f40c8b940ea473e7382f2525b9029d27a950391fc64a397095a864a086d53f2c83db2718b607cacbcd2185137856219d46ac216db0b3e9a7665fcd38

Score
3/10

Malware Config

Signatures

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c "C:\Users\Admin\AppData\Local\Temp\custom_Suiika_V1_03\Custom_Suiika_V1_03_4k\Expressions\Hairbuns (low).exp3.json"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2812
    • C:\Windows\system32\rundll32.exe
      "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\custom_Suiika_V1_03\Custom_Suiika_V1_03_4k\Expressions\Hairbuns (low).exp3.json
      2⤵
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:2908
      • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
        "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\custom_Suiika_V1_03\Custom_Suiika_V1_03_4k\Expressions\Hairbuns (low).exp3.json"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        PID:796

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

    Filesize

    3KB

    MD5

    b347c604d7181b0ae461e11b3bb19380

    SHA1

    8f3b3289d9e4fb962a85fff92bfa5911ae15475f

    SHA256

    44ba9eda007de68bd058ca55c8240caf604f90e6248a9924ef3200b87e678eb3

    SHA512

    3adf4d1152db870e76ea4a65bb1259e57d8fa3898a7e5b4e2451dca1f07c21a4fe6f0efdea79d318f48613fc32657885ce55e16441d0af8e688f7e43e9e279a3