General
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Target
http://web.archive.org
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Sample
240714-wfbk7atdjb
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
http://web.archive.org
Resource
win10v2004-20240709-en
Malware Config
Extracted
asyncrat
0.5.7B
Default
127.0.0.1:6606
AsyncMutex_6SI8OkPnk
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delay
3
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install
true
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install_file
vca.exe
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install_folder
%AppData%
Extracted
asyncrat
Venom RAT + HVNC + Stealer + Grabber v6.0.3
Default
127.0.0.1:4449
mznbkwzxieikffhbvd
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delay
1
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install
false
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install_folder
%AppData%
Extracted
asyncrat
1.0.7
Default
95.216.52.21:7575
xdnqiaxygefjfoolgo
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delay
1
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install
false
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install_folder
%AppData%
Targets
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Target
http://web.archive.org
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Modifies WinLogon for persistence
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Suspicious use of NtCreateUserProcessOtherParentProcess
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Async RAT payload
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Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Downloads MZ/PE file
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Drops file in Drivers directory
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Modifies RDP port number used by Windows
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Sets service image path in registry
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Event Triggered Execution: Component Object Model Hijacking
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
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Executes dropped EXE
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Impair Defenses: Safe Mode Boot
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Loads dropped DLL
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Modifies system executable filetype association
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Legitimate hosting services abused for malware hosting/C2
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Checks system information in the registry
System information is often read in order to detect sandboxing environments.
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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Event Triggered Execution
2Change Default File Association
1Component Object Model Hijacking
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Event Triggered Execution
2Change Default File Association
1Component Object Model Hijacking
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Impair Defenses
1Safe Mode Boot
1Modify Registry
6Subvert Trust Controls
1Install Root Certificate
1