Analysis
- max time kernel
113s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20230915-en - resource tags
- submitted
08/10/2023, 09:38
General
- Target file.exe
- Size 288KB
- Sample231008-ll2dpadd95
- SHA256 141398e4cab2c24c9df53d19f3310a31c5edbc39e8dc64fec46003b2f6255f4e
Score
10/10
Malware Config
Extracted
Family
-
smokeloader
Botnet
-
pub4
Extracted
Family
-
smokeloader
Version
-
2022
C2
-
http://gudintas.at/tmp/
-
http://pik96.ru/tmp/
-
http://rosatiauto.com/tmp/
-
http://kingpirate.ru/tmp/
rc4.i32
rc4.i32
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 1 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: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of UnmapMainImage 1 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\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Users\Admin\AppData\Roaming\rcesrsrC:\Users\Admin\AppData\Roaming\rcesrsr1⤵
- Executes dropped EXE
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
rcesrsr
rcesrsr
memory/676-4-0x00000000005D0000-0x00000000005E6000-memory.dmp
memory/2108-1-0x0000000002480000-0x0000000002580000-memory.dmp
memory/2108-2-0x00000000023F0000-0x00000000023F9000-memory.dmp
memory/2108-3-0x0000000000400000-0x0000000002285000-memory.dmp
memory/2108-5-0x0000000000400000-0x0000000002285000-memory.dmp
memory/2108-8-0x00000000023F0000-0x00000000023F9000-memory.dmp