Analysis
- max time kernel
150s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20230831-en - resource tags
- submitted
12/09/2023, 01:35
General
- Target file.exe
- Size 297KB
- Sample230912-bzn1each98
- SHA256 a8f85fd5c1cfe90bcfcf933d0d76144a1e045321943a6124e1edabe4e10b3635
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 6 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 2 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\wuvsgiwC:\Users\Admin\AppData\Roaming\wuvsgiw1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
wuvsgiw
wuvsgiw
memory/3184-4-0x00000000024E0000-0x00000000024F6000-memory.dmp
memory/3184-16-0x0000000007BD0000-0x0000000007BE6000-memory.dmp
memory/4428-14-0x0000000002300000-0x0000000002400000-memory.dmp
memory/4428-15-0x0000000000400000-0x00000000022F2000-memory.dmp
memory/4428-19-0x0000000000400000-0x00000000022F2000-memory.dmp
memory/5000-1-0x00000000024A0000-0x00000000025A0000-memory.dmp
memory/5000-2-0x0000000000400000-0x00000000022F2000-memory.dmp
memory/5000-3-0x0000000004040000-0x0000000004049000-memory.dmp
memory/5000-5-0x0000000000400000-0x00000000022F2000-memory.dmp