Analysis
- max time kernel
300s - max time network
255s - platform
windows10-1703_x64 - resource
win10-20230915-en - resource tags
- submitted
20/09/2023, 03:36
General
- Target f28743ef69738184972b65c6b04cae600f1d01ace14a9c1cd1eab7224274812e.exe
- Size 265KB
- Sample230920-d55apadh8x
- SHA256 f28743ef69738184972b65c6b04cae600f1d01ace14a9c1cd1eab7224274812e
Malware Config
Extracted
-
smokeloader
-
pub1
Extracted
-
smokeloader
-
2022
-
http://gudintas.at/tmp/
-
http://pik96.ru/tmp/
-
http://rosatiauto.com/tmp/
-
http://kingpirate.ru/tmp/
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Deletes itself 1 IoCs
- 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
- Suspicious use of AdjustPrivilegeToken 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\f28743ef69738184972b65c6b04cae600f1d01ace14a9c1cd1eab7224274812e.exe"C:\Users\Admin\AppData\Local\Temp\f28743ef69738184972b65c6b04cae600f1d01ace14a9c1cd1eab7224274812e.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Users\Admin\AppData\Roaming\buiubwdC:\Users\Admin\AppData\Roaming\buiubwd1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
buiubwd
buiubwd
memory/1860-14-0x00000000009A0000-0x0000000000AA0000-memory.dmp
memory/1860-15-0x0000000000400000-0x0000000000711000-memory.dmp
memory/1860-19-0x0000000000400000-0x0000000000711000-memory.dmp
memory/3196-4-0x0000000001120000-0x0000000001136000-memory.dmp
memory/3196-16-0x0000000002FE0000-0x0000000002FF6000-memory.dmp
memory/4076-1-0x00000000008C0000-0x00000000009C0000-memory.dmp
memory/4076-2-0x0000000000400000-0x0000000000711000-memory.dmp
memory/4076-3-0x0000000000860000-0x0000000000869000-memory.dmp
memory/4076-5-0x0000000000400000-0x0000000000711000-memory.dmp