Analysis

  • max time kernel
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/10/2026, 00:52

General

  • Target
    Built_Stub.exe
  • Size 2.0MB
  • Sample261027-a785wacd25
  • SHA256 74c659f8af2e3aa0100817b4f2ede827197272d279c6b7dbc876c7e29a9aef9a
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10

Malware Config

Signatures

  • Family: SiriusRAT

    SiriusRAT is a Windows RAT written in C++ with HVNC, offline keylogging, and remote desktop capabilities.

  • Detects SiriusRAT 1 IoCs
  • Program crash 1 IoCs
  • 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\Built_Stub.exe
    "C:\Users\Admin\AppData\Local\Temp\Built_Stub.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:1092
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1092 -s 840
      2⤵
      • Program crash
      PID:4848
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1092 -ip 1092
    1⤵
      PID:4896

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/1092-0-0x0000000074A62000-0x0000000074A63000-memory.dmp

          memory/1092-1-0x0000000000090000-0x0000000000098000-memory.dmp

          memory/1092-2-0x0000000004B10000-0x0000000004D13000-memory.dmp