Analysis
- max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
16/09/2026, 08:12
General
- Target 5c84cd95969811b932593e3530f931c2f3e6a032537c43ad5a52ab59e061cce4.exe
- Size 957KB
- Sample260916-j39ehsvxgv
- SHA256 5c84cd95969811b932593e3530f931c2f3e6a032537c43ad5a52ab59e061cce4
Malware Config
Extracted
-
asyncrat
-
7.0
-
Default
-
110.42.6.163:8848
-
DcRatMutex_qwqdanchun
-
delay
1
-
install
false
-
install_folder
%AppData%
Signatures
- Family: AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- Family: DonutLoader
DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.
- Async RAT payload 1 IoCs
- Detects DonutLoader 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 5 IoCs
- Loads dropped DLL 4 IoCs
- Adds Run key to start application 2 TTPs 4 IoCs
- Drops file in Program Files directory 10 IoCs
- Drops file in Windows directory 6 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\5c84cd95969811b932593e3530f931c2f3e6a032537c43ad5a52ab59e061cce4.exe"C:\Users\Admin\AppData\Local\Temp\5c84cd95969811b932593e3530f931c2f3e6a032537c43ad5a52ab59e061cce4.exe"1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
-
C:\Program Files\appcompat\19.exe"C:\Program Files\appcompat\19.exe"2⤵
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\appcompat\TenioDL.exeC:\Windows\appcompat\TenioDL.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
-
-
-
C:\Program Files\appcompat\TenioDL.exe"C:\Program Files\appcompat\TenioDL.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Program Files\appcompat\TenioDL.exe"C:\Program Files\appcompat\TenioDL.exe"1⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
-
C:\Windows\appcompat\TenioDL.exeC:\Windows\appcompat\TenioDL.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
19.exe
TenioDL.exe
TenioDL_core.dll
core.dat
memory/5312-31-0x0000000000510000-0x000000000052C000-memory.dmp
memory/5312-32-0x0000000076A60000-0x0000000076A61000-memory.dmp
memory/5312-52-0x0000000004C90000-0x0000000004CAC000-memory.dmp
memory/5312-58-0x0000000005310000-0x00000000053AC000-memory.dmp
memory/5312-59-0x00000000053B0000-0x0000000005954000-memory.dmp
memory/5312-60-0x00000000059C0000-0x0000000005A26000-memory.dmp