Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20230831-en - resource tags
- submitted
08/09/2023, 12:33
General
- Target file.exe
- Size 266KB
- Sample230908-pq7caabe7s
- SHA256 802ba7207a318efc8155756a171efee5d6f9432d7297c985e3bf63e87dabd0fe
Malware Config
Extracted
-
smokeloader
-
pub4
Extracted
-
smokeloader
-
2022
-
http://taibi.at/tmp/
-
http://01stroy.ru/tmp/
-
http://mal-net.com/tmp/
-
http://gromograd.ru/tmp/
-
http://kingpirate.ru/tmp/
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\btibwfwC:\Users\Admin\AppData\Roaming\btibwfw1⤵
- Executes dropped EXE
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
btibwfw
btibwfw
memory/3208-4-0x0000000000620000-0x0000000000636000-memory.dmp
memory/4128-0-0x0000000002680000-0x0000000002695000-memory.dmp
memory/4128-1-0x00000000001C0000-0x00000000001C9000-memory.dmp
memory/4128-2-0x0000000000400000-0x0000000002417000-memory.dmp
memory/4128-3-0x0000000000400000-0x0000000002417000-memory.dmp
memory/4128-5-0x0000000000400000-0x0000000002417000-memory.dmp
memory/4128-8-0x0000000002680000-0x0000000002695000-memory.dmp
memory/4128-9-0x00000000001C0000-0x00000000001C9000-memory.dmp