Analysis
- max time kernel
150s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
18/08/2024, 19:02
General
- Target cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe
- Size 74KB
- Sample240818-xp378ssdmk
- SHA256 cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80
Malware Config
Extracted
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asyncrat
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Venom RAT + HVNC + Stealer + Grabber v6.0.3
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100 RND
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91.92.243.191:5401
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6871a79e-e4f7-4fb3-ae38-dc20c1d657a0
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delay
1
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install
true
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install_file
hyperhostvc.exe
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install_folder
%AppData%
Signatures
- AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- VenomRAT 2 IoCs
Detects VenomRAT.
- 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).
- Delays execution with timeout.exe 1 IoCs
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of AdjustPrivilegeToken 2 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\cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.exe"C:\Users\Admin\AppData\Local\Temp\cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80.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 "hyperhostvc" /tr '"C:\Users\Admin\AppData\Roaming\hyperhostvc.exe"' & exit2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "hyperhostvc" /tr '"C:\Users\Admin\AppData\Roaming\hyperhostvc.exe"'3⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpFF6E.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\hyperhostvc.exe"C:\Users\Admin\AppData\Roaming\hyperhostvc.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
tmpFF6E.tmp.bat
DataLogs.conf
hyperhostvc.exe
memory/2300-0-0x00007FFB87953000-0x00007FFB87955000-memory.dmp
memory/2300-1-0x0000000000D60000-0x0000000000D78000-memory.dmp
memory/2300-3-0x00007FFB87950000-0x00007FFB88411000-memory.dmp
memory/2300-8-0x00007FFB87950000-0x00007FFB88411000-memory.dmp
memory/2300-9-0x00007FFB87950000-0x00007FFB88411000-memory.dmp