Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20230915-en - resource tags
- submitted
08/10/2023, 22:15
General
- Target file.exe
- Size 280KB
- Sample231008-1573xaaf68
- SHA256 7e36265ad76fa6f482fdc09bcf491768d50a06a81fdb932f5b0b995d7af2bb40
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.
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Modifies registry class 3 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 7 IoCs
- Suspicious use of FindShellTrayWindow 2 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:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe1⤵
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k UnistackSvcGroup1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/3104-4-0x0000000000C10000-0x0000000000C26000-memory.dmp
memory/4104-1-0x0000000002310000-0x0000000002410000-memory.dmp
memory/4104-2-0x0000000002450000-0x0000000002459000-memory.dmp
memory/4104-3-0x0000000000400000-0x0000000002284000-memory.dmp
memory/4104-5-0x0000000000400000-0x0000000002284000-memory.dmp
memory/4104-8-0x0000000002450000-0x0000000002459000-memory.dmp
memory/4396-12-0x000002934AA40000-0x000002934AA50000-memory.dmp
memory/4396-28-0x000002934AB40000-0x000002934AB50000-memory.dmp
memory/4396-44-0x0000029352E50000-0x0000029352E51000-memory.dmp
memory/4396-46-0x0000029352E80000-0x0000029352E81000-memory.dmp
memory/4396-47-0x0000029352E80000-0x0000029352E81000-memory.dmp
memory/4396-48-0x0000029352F90000-0x0000029352F91000-memory.dmp