Analysis

  • max time kernel
    150s
  • max time network
    144s
  • 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/Hairband.exp3.json

  • Size

    164B

  • MD5

    ae07f8ed2873523d8437256ef99f4b79

  • SHA1

    aa8bdbc9629690b68d7564770d7595d3f483b3ed

  • SHA256

    b8a60549ede5563c37772407ecc84b0ae5dc5146bea1279d68e328fa6de6176e

  • SHA512

    5e18bdb9fbba1f72007033a140c24ed716792215db84bc7d177cefd611514419c65370de8925fe60b69b56b5ba5022329a60a5a56e3f19af470ea3428531d070

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\Hairband.exp3.json
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2788
    • 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\Hairband.exp3.json
      2⤵
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:2860
      • 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\Hairband.exp3.json"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        PID:2772

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

    531726bdbaf3c4038e507d16887cf7b2

    SHA1

    aa4682dd7df34ef3f423b39730d3038737243089

    SHA256

    76e72e1bd7d51434beb34ee25b9f81ad193383c6ae499804ed69beadab1a54a2

    SHA512

    924060c4ce39781e1283313257e2ac3bcff3e56be583d634e9539b5576ce866530630137975229bc24d717d42ee1e2c92ed91f494c0c881e836db85c94324e9e