Analysis
- max time kernel
300s - max time network
255s - platform
windows10-1703_x64 - resource
win10-20240221-en - resource tags
- submitted
26/02/2024, 01:56
General
- Target 68abca4995919db0fe3a4e9158062759b2267ebcd8e3036f7eb8e71ed6202c85.exe
- Size 245KB
- Sample240226-ccvecaaa83
- SHA256 68abca4995919db0fe3a4e9158062759b2267ebcd8e3036f7eb8e71ed6202c85
Malware Config
Extracted
-
smokeloader
-
pub3
Extracted
-
smokeloader
-
2022
-
http://sjyey.com/tmp/index.php
-
http://babonwo.ru/tmp/index.php
-
http://mth.com.ua/tmp/index.php
-
http://piratia.pw/tmp/index.php
-
http://go-piratia.ru/tmp/index.php
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: 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\68abca4995919db0fe3a4e9158062759b2267ebcd8e3036f7eb8e71ed6202c85.exe"C:\Users\Admin\AppData\Local\Temp\68abca4995919db0fe3a4e9158062759b2267ebcd8e3036f7eb8e71ed6202c85.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Users\Admin\AppData\Roaming\stbrsdrC:\Users\Admin\AppData\Roaming\stbrsdr1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
stbrsdr
memory/204-1-0x0000000002FE0000-0x00000000030E0000-memory.dmp
memory/204-2-0x0000000002E80000-0x0000000002E8B000-memory.dmp
memory/204-3-0x0000000000400000-0x0000000002D3C000-memory.dmp
memory/204-5-0x0000000000400000-0x0000000002D3C000-memory.dmp
memory/3412-4-0x0000000001450000-0x0000000001466000-memory.dmp
memory/3412-16-0x0000000003270000-0x0000000003286000-memory.dmp
memory/4712-14-0x0000000002D80000-0x0000000002E80000-memory.dmp
memory/4712-15-0x0000000000400000-0x0000000002D3C000-memory.dmp
memory/4712-17-0x0000000000400000-0x0000000002D3C000-memory.dmp