Overview

overview

7

Static

static

3

dfb0d93c85...19.exe

windows7-x64

7

dfb0d93c85...19.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    150s
  • max time network
    104s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/05/2024, 16:09

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General

  • Target
    dfb0d93c851b91b2f53a15b7b50073e7cfb96c74d5d5e0cc198b350256b2ec19.exe
  • Size 6.9MB
  • Sample240522-tl7vgagg4s
  • SHA256 dfb0d93c851b91b2f53a15b7b50073e7cfb96c74d5d5e0cc198b350256b2ec19
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dfb0d93c851b91b2f53a15b7b50073e7cfb96c74d5d5e0cc198b350256b2ec19.exe
    "C:\Users\Admin\AppData\Local\Temp\dfb0d93c851b91b2f53a15b7b50073e7cfb96c74d5d5e0cc198b350256b2ec19.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5612
    • C:\Users\Admin\AppData\Local\Temp\dfb0d93c851b91b2f53a15b7b50073e7cfb96c74d5d5e0cc198b350256b2ec19.exe
      C:\Users\Admin\AppData\Local\Temp\dfb0d93c851b91b2f53a15b7b50073e7cfb96c74d5d5e0cc198b350256b2ec19.exe -a -d
      2⤵
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1900
      • C:\Users\Admin\AppData\Local\Temp\dfb0d93c851b91b2f53a15b7b50073e7cfb96c74d5d5e0cc198b350256b2ec19_app.exe
        "C:\Users\Admin\AppData\Local\Temp\dfb0d93c851b91b2f53a15b7b50073e7cfb96c74d5d5e0cc198b350256b2ec19_app.exe"
        3⤵
        • Executes dropped EXE
        PID:6080

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        cyyundun.dll
        • Path C:\Users\Admin\AppData\Local\Temp\cyyundun.dll
        • Size 332KB
        • SHA256 b115d63bee020042256019ee14fa0570483180e29c4deb7ed5b8fab522b05244
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        dfb0d93c851b91b2f53a15b7b50073e7cfb96c74d5d5e0cc198b350256b2ec19_app.exe
        • Path C:\Users\Admin\AppData\Local\Temp\dfb0d93c851b91b2f53a15b7b50073e7cfb96c74d5d5e0cc198b350256b2ec19_app.exe
        • Size 3.0MB
        • SHA256 0c051a0a31c838f2da101ab98b9275828a9bbf298710428627e0c5a66574bf99
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        memory/1900-13-0x0000000074700000-0x0000000074767000-memory.dmp
        Download

        memory/1900-18-0x0000000074700000-0x0000000074767000-memory.dmp
        Download

        memory/5612-5-0x0000000074B50000-0x0000000074BB7000-memory.dmp
        Download

        memory/5612-6-0x0000000074B50000-0x0000000074BB7000-memory.dmp
        Download