Analysis
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max time kernel
150s -
max time network
131s -
platform
windows10-1703_x64 -
resource
win10-20230915-en -
resource tags
arch:x64arch:x86image:win10-20230915-enlocale:en-usos:windows10-1703-x64system -
submitted
16/09/2023, 12:28
Static task
static1
Behavioral task
behavioral1
Sample
8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253.exe
Resource
win10-20230915-en
General
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Target
8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253.exe
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Size
269KB
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MD5
471d013aab48d5f5c969bc7aa6c16fa1
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SHA1
11b57c813d8e758e72a6d9610f8b8bc29b0ec4ac
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SHA256
8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253
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SHA512
ee5563e164f93bdab792e1b63f5fca5a201d0abb9eab531520dddc82ce919ebb34ae341e44c60c05fbd50a991320f789e2f937ef5762715ac847936cd4dd3a55
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SSDEEP
1536:82N8DK2jqYskSPpFIa+dKsf0UoY65nNhkE2dtXr+DyIQ3yXvPuljlTs95/uTzIT+:8zDBXva+bBCNfQ7+DPQ3y/PqTs964Yt
Malware Config
Extracted
smokeloader
pub1
Extracted
smokeloader
2020
http://host-file-host6.com/
http://host-host-file8.com/
Signatures
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SmokeLoader
Modular backdoor trojan in use since 2014.
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Deletes itself 1 IoCs
pid Process 3264 Process not Found -
Executes dropped EXE 2 IoCs
pid Process 3604 swhiwjs 3488 swhiwjs -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1504 set thread context of 4060 1504 8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253.exe 70 PID 3604 set thread context of 3488 3604 swhiwjs 72 -
Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI swhiwjs Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI swhiwjs Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI swhiwjs -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4060 8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253.exe 4060 8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253.exe 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found 3264 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3264 Process not Found -
Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 4060 8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253.exe 3488 swhiwjs -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 3264 Process not Found Token: SeCreatePagefilePrivilege 3264 Process not Found -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1504 wrote to memory of 4060 1504 8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253.exe 70 PID 1504 wrote to memory of 4060 1504 8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253.exe 70 PID 1504 wrote to memory of 4060 1504 8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253.exe 70 PID 1504 wrote to memory of 4060 1504 8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253.exe 70 PID 1504 wrote to memory of 4060 1504 8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253.exe 70 PID 1504 wrote to memory of 4060 1504 8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253.exe 70 PID 3604 wrote to memory of 3488 3604 swhiwjs 72 PID 3604 wrote to memory of 3488 3604 swhiwjs 72 PID 3604 wrote to memory of 3488 3604 swhiwjs 72 PID 3604 wrote to memory of 3488 3604 swhiwjs 72 PID 3604 wrote to memory of 3488 3604 swhiwjs 72 PID 3604 wrote to memory of 3488 3604 swhiwjs 72 -
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
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C:\Users\Admin\AppData\Local\Temp\8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253.exe"C:\Users\Admin\AppData\Local\Temp\8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1504 -
C:\Users\Admin\AppData\Local\Temp\8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253.exe"C:\Users\Admin\AppData\Local\Temp\8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4060
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C:\Users\Admin\AppData\Roaming\swhiwjsC:\Users\Admin\AppData\Roaming\swhiwjs1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3604 -
C:\Users\Admin\AppData\Roaming\swhiwjsC:\Users\Admin\AppData\Roaming\swhiwjs2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:3488
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
269KB
MD5471d013aab48d5f5c969bc7aa6c16fa1
SHA111b57c813d8e758e72a6d9610f8b8bc29b0ec4ac
SHA2568c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253
SHA512ee5563e164f93bdab792e1b63f5fca5a201d0abb9eab531520dddc82ce919ebb34ae341e44c60c05fbd50a991320f789e2f937ef5762715ac847936cd4dd3a55
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Filesize
269KB
MD5471d013aab48d5f5c969bc7aa6c16fa1
SHA111b57c813d8e758e72a6d9610f8b8bc29b0ec4ac
SHA2568c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253
SHA512ee5563e164f93bdab792e1b63f5fca5a201d0abb9eab531520dddc82ce919ebb34ae341e44c60c05fbd50a991320f789e2f937ef5762715ac847936cd4dd3a55
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Filesize
269KB
MD5471d013aab48d5f5c969bc7aa6c16fa1
SHA111b57c813d8e758e72a6d9610f8b8bc29b0ec4ac
SHA2568c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253
SHA512ee5563e164f93bdab792e1b63f5fca5a201d0abb9eab531520dddc82ce919ebb34ae341e44c60c05fbd50a991320f789e2f937ef5762715ac847936cd4dd3a55