Analysis
- max time kernel
18s - max time network
22s - platform
windows7_x64 - resource
win7-20230831-en - resource tags
- submitted
07/09/2023, 07:07
Errors
General
- Target VMTEST.exe
- Size 47KB
- Sample230907-hxtlfafc4x
- SHA256 e3ee15bd537e00c5014db68f3f479b8dcec8373df7cd10f0bc803990f7dab4b3
Malware Config
Extracted
-
asyncrat
-
1.0.7
-
Default
-
tr2.localto.net:44728
-
DcRatMutex_qwqdanchun
-
delay
1
-
install
false
-
install_file
taskhostt.exe
-
install_folder
%AppData%
Signatures
- AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- Async RAT payload 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\VMTEST.exe"C:\Users\Admin\AppData\Local\Temp\VMTEST.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c Shutdown /s /f /t 002⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\shutdown.exeShutdown /s /f /t 003⤵
- Suspicious use of AdjustPrivilegeToken
-
-
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C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x01⤵
-
C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x11⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Cab6950.tmp
Tar8BF0.tmp
memory/276-42-0x00000000027A0000-0x00000000027A1000-memory.dmp
memory/2588-0-0x0000000001150000-0x0000000001162000-memory.dmp
memory/2588-1-0x000007FEF5460000-0x000007FEF5E4C000-memory.dmp
memory/2588-2-0x000000001B290000-0x000000001B310000-memory.dmp
memory/2588-19-0x000007FEF5460000-0x000007FEF5E4C000-memory.dmp
memory/2588-20-0x000000001B290000-0x000000001B310000-memory.dmp
memory/2588-21-0x00000000010A0000-0x0000000001104000-memory.dmp
memory/2588-41-0x000007FEF5460000-0x000007FEF5E4C000-memory.dmp
memory/2748-40-0x0000000002A40000-0x0000000002A41000-memory.dmp