Analysis
- max time kernel
153s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20230915-en - resource tags
- submitted
01/10/2023, 16:03
General
- Target file.exe
- Size 198KB
- Sample231001-thb9dsdd49
- SHA256 303d4734d8dd9ae4b5440ba7c01dc7c3359a5a05b492275ef44c55c5d2ef87c9
Malware Config
Extracted
-
smokeloader
-
pub4
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.
- Downloads MZ/PE file
- 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
- Suspicious use of WriteProcessMemory 3 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\Local\Temp\2E88.exeC:\Users\Admin\AppData\Local\Temp\2E88.exe1⤵
- Executes dropped EXE
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
2E88.exe
2E88.exe
memory/2216-0-0x00000000006B0000-0x00000000006C5000-memory.dmp
memory/2216-1-0x00000000001C0000-0x00000000001C9000-memory.dmp
memory/2216-2-0x0000000000400000-0x000000000043F000-memory.dmp
memory/2216-3-0x0000000000400000-0x000000000043F000-memory.dmp
memory/2216-5-0x0000000000400000-0x000000000043F000-memory.dmp
memory/2216-8-0x00000000001C0000-0x00000000001C9000-memory.dmp
memory/2216-9-0x00000000006B0000-0x00000000006C5000-memory.dmp
memory/3180-4-0x00000000028B0000-0x00000000028C6000-memory.dmp