Analysis
- max time kernel
148s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20230703-en - resource tags
- submitted
20/08/2023, 21:28
General
- Target dcr2.exe
- Size 48KB
- Sample230820-1bbgvabb7y
- SHA256 d36ca7e0e68cdb365995c488172b049fedf69f459a71c9a8f45b7aa75038f9fc
Score
10/10
Malware Config
Extracted
Family
-
asyncrat
Version
-
1.0.7
Botnet
-
Default
C2
-
127.0.0.1:8848
-
127.0.0.1:8858
-
thwit.ddns.net:8848
-
thwit.ddns.net:8858
Mutex
-
DcRatMutex_qwqdnachun
Attributes
-
delay
1
-
install
true
-
install_file
..\..\..\..\tmp\StartService.exe
-
install_folder
%AppData%
aes.plain
Signatures
- AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- Async RAT payload 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.
- Suspicious behavior: EnumeratesProcesses 23 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\dcr2.exe"C:\Users\Admin\AppData\Local\Temp\dcr2.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "StartService" /tr '"C:\tmp\StartService.exe"' & exit2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "StartService" /tr '"C:\tmp\StartService.exe"'3⤵
- Creates scheduled task(s)
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
memory/1088-133-0x0000000000030000-0x0000000000042000-memory.dmp
memory/1088-134-0x00007FF9352F0000-0x00007FF935DB1000-memory.dmp
memory/1088-135-0x00000000020C0000-0x00000000020D0000-memory.dmp
memory/1088-136-0x00007FF9352F0000-0x00007FF935DB1000-memory.dmp
memory/1088-137-0x00000000020C0000-0x00000000020D0000-memory.dmp