Analysis
- max time kernel
143s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
01/05/2024, 06:25
General
- Target aaaaaaaaaaaaaa.exe
- Size 74KB
- Sample240501-g61wfacb44
- SHA256 0e98e910ed50618f8ad181e371c197d6342215753b7938d75358a1351423f1e3
Malware Config
Extracted
-
asyncrat
-
Venom RAT + HVNC + Stealer + Grabber v6.0.3
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Windows
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147.185.221.19:29253
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doxtiisforiqxq
-
delay
1
-
install
true
-
install_file
ProgramFile.exe
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install_folder
%AppData%
Signatures
- AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- Async RAT payload 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Delays execution with timeout.exe 1 IoCs
- Suspicious behavior: EnumeratesProcesses 31 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 10 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\aaaaaaaaaaaaaa.exe"C:\Users\Admin\AppData\Local\Temp\aaaaaaaaaaaaaa.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "ProgramFile" /tr '"C:\Users\Admin\AppData\Roaming\ProgramFile.exe"' & exit2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "ProgramFile" /tr '"C:\Users\Admin\AppData\Roaming\ProgramFile.exe"'3⤵
- Creates scheduled task(s)
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpCEC.tmp.bat""2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
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C:\Users\Admin\AppData\Roaming\ProgramFile.exe"C:\Users\Admin\AppData\Roaming\ProgramFile.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1408 --field-trial-handle=2676,i,447940133669489189,1353734109898858672,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
tmpCEC.tmp.bat
DataLogs.conf
ProgramFile.exe
memory/3372-0-0x0000000000FC0000-0x0000000000FD8000-memory.dmp
memory/3372-1-0x00007FFC8CBB0000-0x00007FFC8D671000-memory.dmp
memory/3372-3-0x000000001BCF0000-0x000000001BD00000-memory.dmp
memory/3372-8-0x00007FFCACDB0000-0x00007FFCACFA5000-memory.dmp
memory/3372-9-0x00007FFC8CBB0000-0x00007FFC8D671000-memory.dmp
memory/3372-10-0x00007FFCACDB0000-0x00007FFCACFA5000-memory.dmp