Analysis
- max time kernel
150s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20230703-en - resource tags
- submitted
13/07/2023, 04:39
General
- Target tmp.exe
- Size 695KB
- Sample230713-e97gaagd2s
- SHA256 92016b01f6a319dece11785543f6ec734a436ba63727a8ae065890dfd4b6420d
Malware Config
Extracted
-
smokeloader
-
2022
-
http://cletonmy.com/
-
http://alpatrik.com/
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Checks QEMU agent file 2 TTPs 2 IoCs
Checks presence of QEMU agent, possibly to detect virtualization.
- Loads dropped DLL 2 IoCs
- Drops file in System32 directory 1 IoCs
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Windows directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 2 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 4 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
-
C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"2⤵
- Checks QEMU agent file
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
System.dll
System.dll
System.dll
memory/760-169-0x0000000000AB0000-0x0000000000AC0000-memory.dmp
memory/760-168-0x0000000000AB0000-0x0000000000AC0000-memory.dmp
memory/760-177-0x0000000000AC0000-0x0000000000ACA000-memory.dmp
memory/760-176-0x0000000000AC0000-0x0000000000ACA000-memory.dmp
memory/760-175-0x0000000000A90000-0x0000000000AA0000-memory.dmp
memory/760-174-0x0000000000AB0000-0x0000000000AC0000-memory.dmp
memory/760-173-0x0000000000AB0000-0x0000000000AC0000-memory.dmp
memory/760-172-0x0000000000AB0000-0x0000000000AC0000-memory.dmp
memory/760-151-0x00000000028A0000-0x00000000028B6000-memory.dmp
memory/760-171-0x0000000000AB0000-0x0000000000AC0000-memory.dmp
memory/760-164-0x0000000000AB0000-0x0000000000AC0000-memory.dmp
memory/760-159-0x0000000000AB0000-0x0000000000AC0000-memory.dmp
memory/760-160-0x0000000000AB0000-0x0000000000AC0000-memory.dmp
memory/760-161-0x0000000000AB0000-0x0000000000AC0000-memory.dmp
memory/760-163-0x0000000000AB0000-0x0000000000AC0000-memory.dmp
memory/760-162-0x0000000000AB0000-0x0000000000AC0000-memory.dmp
memory/760-170-0x0000000000AB0000-0x0000000000AC0000-memory.dmp
memory/760-165-0x0000000000AB0000-0x0000000000AC0000-memory.dmp
memory/760-166-0x0000000000AB0000-0x0000000000AC0000-memory.dmp
memory/760-167-0x0000000000AB0000-0x0000000000AC0000-memory.dmp
memory/1724-144-0x0000000002A90000-0x0000000004DE3000-memory.dmp
memory/1724-143-0x0000000002A90000-0x0000000004DE3000-memory.dmp
memory/4288-155-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4288-153-0x0000000001660000-0x00000000039B3000-memory.dmp
memory/4288-150-0x0000000001660000-0x00000000039B3000-memory.dmp
memory/4288-149-0x0000000001660000-0x00000000039B3000-memory.dmp
memory/4288-148-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4288-147-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4288-146-0x0000000001660000-0x00000000039B3000-memory.dmp
memory/4288-145-0x0000000000400000-0x0000000001654000-memory.dmp