Analysis
- max time kernel
63s - max time network
63s - platform
windows10_x64 - resource
win10v20201028 - submitted
16/03/2021, 18:12
Errors
General
- Target 145449203ce0a012f463344d93344162.exe
- Size 287KB
- Sample210316-6vy51tk2be
- SHA256 55e764c875d2aba36aeef3d6ea2096cf395c8b3a62ee641b1e37d141f8c9ecc7
Malware Config
Extracted
-
smokeloader
-
2020
-
http://funzel.info/upload/
-
http://doeros.xyz/upload/
-
http://vromus.com/upload/
-
http://hqans.com/upload/
-
http://vxeudy.com/upload/
-
http://poderoa.com/upload/
-
http://nezzzo.com/upload/
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 1 IoCs
- Deletes itself 1 IoCs
- Loads dropped DLL 1 IoCs
- Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
- 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 1 IoCs
- Suspicious use of UnmapMainImage 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\145449203ce0a012f463344d93344162.exe"C:\Users\Admin\AppData\Local\Temp\145449203ce0a012f463344d93344162.exe"1⤵
- Loads dropped DLL
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Users\Admin\AppData\Local\Temp\5F95.exeC:\Users\Admin\AppData\Local\Temp\5F95.exe1⤵
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2800-10-0x0000000000A20000-0x0000000000A21000-memory.dmp
memory/2800-12-0x0000000000400000-0x000000000046F000-memory.dmp
memory/2800-11-0x0000000000800000-0x000000000086B000-memory.dmp
memory/3020-6-0x0000000000D10000-0x0000000000D26000-memory.dmp
memory/3300-2-0x00000000030F0000-0x00000000030F1000-memory.dmp
memory/3300-4-0x0000000000030000-0x0000000000039000-memory.dmp
memory/3300-5-0x0000000000400000-0x0000000000409000-memory.dmp