Analysis

  • max time kernel
    150s
  • max time network
    128s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/10/2026, 20:51

General

  • Target
    jaffacakes118_Trojan-Dropper.Win32.VB.blie.exe
  • Size 122KB
  • Sample261009-znk2daed42
  • SHA256 5c83899b57c4c7992a37f3d772d8a084b97d20e1d985ea83715a76edb21e28c7
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Swisyn

    Swisyn is a worm written in VisualBasic.

  • Detects Swisyn worm 4 IoCs
  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Modifies visibility of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 8 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Executes dropped EXE 4 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in Windows directory 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.VB.blie.exe
    "C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.VB.blie.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5484
    • \??\c:\windows\system\explorer.exe
      c:\windows\system\explorer.exe
      2⤵
      • Modifies WinLogon for persistence
      • Modifies visibility of hidden/system files in Explorer
      • Boot or Logon Autostart Execution: Active Setup
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3468
      • \??\c:\windows\system\spoolsv.exe
        c:\windows\system\spoolsv.exe SE
        3⤵
        • Executes dropped EXE
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1768
        • \??\c:\windows\system\svchost.exe
          c:\windows\system\svchost.exe
          4⤵
          • Modifies WinLogon for persistence
          • Modifies visibility of hidden/system files in Explorer
          • Boot or Logon Autostart Execution: Active Setup
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:5504
          • \??\c:\windows\system\spoolsv.exe
            c:\windows\system\spoolsv.exe PR
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of SetWindowsHookEx
            PID:948

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        mrsys.exe

        • Path C:\Users\Admin\AppData\Roaming\mrsys.exe
        • Size 122KB
        • SHA256 8ae3a1cf4c20d4dd49f0e7cd06916c4c67e0d6570465d063883265680379495d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        explorer.exe

        • Path C:\Windows\System\explorer.exe
        • Size 122KB
        • SHA256 92bfe46843393912d7ca0a6aa6fb7b9a8eeed048bd0bfdb4dbef821bad326d4d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        spoolsv.exe

        • Path C:\Windows\System\spoolsv.exe
        • Size 122KB
        • SHA256 f89bf6962de2f3e51e9d692e398f7b23f0ba35d5522d627f6fe8961732113cbf
        • MD5 SHA1 SHA512 SSDEEP TLSH

        svchost.exe

        • Path C:\Windows\System\svchost.exe
        • Size 122KB
        • SHA256 a5887b26b22066e7c87ada870d6500c2b968e1e7d20a3fd32a471da5176d671b
        • MD5 SHA1 SHA512 SSDEEP TLSH