Analysis

  • max time kernel
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    23/05/2026, 02:48

General

  • Target
    yabujin.exe
  • Size 273KB
  • Sample260523-daqh2sd19y
  • SHA256 1ea65fbb40a8af9bb71bf3c00620782ab72843a8af4dc50edb8526dcc1b72abd
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\yabujin.exe
    "C:\Users\Admin\AppData\Local\Temp\yabujin.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5328
    • C:\Users\Admin\AppData\Local\Temp\F325FD7B\Launcher_8.exe
      "C:\Users\Admin\AppData\Local\Temp\F325FD7B\Launcher_8.exe"
      2⤵
      • Executes dropped EXE
      • Checks processor information in registry
      PID:5376

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        Launcher_8.exe

        • Path C:\Users\Admin\AppData\Local\Temp\F325FD7B\Launcher_8.exe
        • Size 1.1MB
        • SHA256 b5190b05a09ac2636fe6e42cb9344264e3c0a49c49816f2a3517655a2a6101d8
        • MD5 SHA1 SHA512 SSDEEP TLSH