Analysis
- max time kernel
300s - max time network
296s - platform
windows10-1703_x64 - resource
win10-20231215-en - resource tags
- submitted
08/01/2024, 05:01
General
- Target d248ac0df52d36cca68053a1a361f864e8b9b83994475df0ae5f35ee1f7c5feb.exe
- Size 253KB
- Sample240108-fnmenabefq
- SHA256 d248ac0df52d36cca68053a1a361f864e8b9b83994475df0ae5f35ee1f7c5feb
Malware Config
Extracted
-
smokeloader
-
pub1
Extracted
-
smokeloader
-
2020
-
http://host-file-host6.com/
-
http://host-host-file8.com/
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Deletes itself 1 IoCs
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- NSIS installer 3 IoCs
- 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: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 15 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\d248ac0df52d36cca68053a1a361f864e8b9b83994475df0ae5f35ee1f7c5feb.exe"C:\Users\Admin\AppData\Local\Temp\d248ac0df52d36cca68053a1a361f864e8b9b83994475df0ae5f35ee1f7c5feb.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\d248ac0df52d36cca68053a1a361f864e8b9b83994475df0ae5f35ee1f7c5feb.exe"C:\Users\Admin\AppData\Local\Temp\d248ac0df52d36cca68053a1a361f864e8b9b83994475df0ae5f35ee1f7c5feb.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
-
C:\Users\Admin\AppData\Local\Temp\5668.exeC:\Users\Admin\AppData\Local\Temp\5668.exe1⤵
- Executes dropped EXE
-
C:\Users\Admin\AppData\Local\Temp\5F14.exeC:\Users\Admin\AppData\Local\Temp\5F14.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
5668.exe
5F14.exe
WindowsUpdater.exe
lib.dll
System.dll
memory/436-4-0x0000000000400000-0x0000000000409000-memory.dmp
memory/436-6-0x0000000000400000-0x0000000000409000-memory.dmp
memory/436-3-0x0000000000400000-0x0000000000409000-memory.dmp
memory/1768-38-0x0000000073DD0000-0x00000000744E7000-memory.dmp
memory/1768-39-0x0000000073DD0000-0x00000000744E7000-memory.dmp
memory/3344-5-0x0000000000700000-0x0000000000716000-memory.dmp
memory/3384-22-0x0000000000820000-0x0000000000DB6000-memory.dmp
memory/3384-26-0x0000000000820000-0x0000000000DB6000-memory.dmp
memory/4752-2-0x0000000000540000-0x0000000000549000-memory.dmp
memory/4752-1-0x0000000000580000-0x0000000000680000-memory.dmp