Analysis
- max time kernel
151s - max time network
150s - platform
windows7_x64 - resource
win7-en-20211104 - submitted
16/11/2021, 03:56
General
- Target 6177d85be52132376166b865ebca55b1.exe
- Size 164KB
- Sample211116-ehc4csccb5
- SHA256 f6c10cababdca8d6de20f8977489182b31ce24bb2ac9399965d32cedf0f526fe
Malware Config
Extracted
-
smokeloader
-
2020
-
http://membro.at/upload/
-
http://jeevanpunetha.com/upload/
-
http://misipu.cn/upload/
-
http://zavodooo.ru/upload/
-
http://targiko.ru/upload/
-
http://vues3d.com/upload/
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Downloads MZ/PE file
- Executes dropped EXE 2 IoCs
- Deletes itself 1 IoCs
- Drops startup file 1 IoCs
- Loads dropped DLL 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of FindShellTrayWindow 2 IoCs
- Suspicious use of SendNotifyMessage 4 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\6177d85be52132376166b865ebca55b1.exe"C:\Users\Admin\AppData\Local\Temp\6177d85be52132376166b865ebca55b1.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Users\Admin\AppData\Local\Temp\D855.exeC:\Users\Admin\AppData\Local\Temp\D855.exe1⤵
- Executes dropped EXE
- Drops startup file
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\Smart Clock\SmartClock.exe"C:\Users\Admin\AppData\Roaming\Smart Clock\SmartClock.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: AddClipboardFormatListener
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/240-62-0x000000000295B000-0x00000000029DB000-memory.dmp
memory/240-66-0x0000000000220000-0x00000000002B1000-memory.dmp
memory/240-67-0x0000000000400000-0x00000000027E6000-memory.dmp
memory/1184-73-0x000000000296B000-0x00000000029EB000-memory.dmp
memory/1184-75-0x0000000000400000-0x00000000027E6000-memory.dmp
memory/1192-59-0x0000000002A30000-0x0000000002A46000-memory.dmp
memory/1648-55-0x0000000075491000-0x0000000075493000-memory.dmp
memory/1648-56-0x0000000000220000-0x0000000000228000-memory.dmp
memory/1648-57-0x0000000000230000-0x0000000000239000-memory.dmp
memory/1648-58-0x0000000000400000-0x0000000000430000-memory.dmp