Overview

overview

7

Static

static

3

jaffacakes...ar.exe

windows10-2004-x64

7

jaffacakes...ar.exe

windows11-ltsc_2024-x64

7

Analysis

  • max time kernel
    148s
  • max time network
    145s
  • 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, 20:17

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    jaffacakes118_Trojan-Dropper.Win32.Star.exe
  • Size 596KB
  • Sample261009-y2ynysd191
  • SHA256 43f6a4541e843146e08009c02d5aa66b4ee9fffdc4ac7f2ac618f08859f40039
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
defense_evasiondiscoverypersistence

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops file in Program Files directory 8 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

    discovery
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

    discovery
  • Modifies Control Panel 4 IoCs
    defense_evasion
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.Star.exe
    "C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.Star.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in Program Files directory
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3584
    • C:\Program Files\STARo\wsys.exe
      "C:\Program Files\STARo\wsys.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Modifies Control Panel
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:5996

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        star.stp
        • Path C:\Program Files\STARo\star.stp
        • Size 4KB
        • SHA256 5a62d076e33e4c643317ebeaf8ddd2aa8184962847b27fbd166ac5fbafc642ad
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        wsys.dll
        • Path C:\Program Files\STARo\wsys.dll
        • Size 48KB
        • SHA256 5236759fb6101a297469f88cf24ff4d653b185a211bf163b5a3707298d605554
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        wsys.exe
        • Path C:\Program Files\STARo\wsys.exe
        • Size 424KB
        • SHA256 525e93f9375f9a8e898e1e015dfe2e655a11bae5220eeb914aea66a5ebea9dc6
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download