Analysis
- max time kernel
148s - max time network
138s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
29/03/2023, 01:40
Static task
static1
Behavioral task
behavioral1
Sample
setup.exe
Resource
win7-20230220-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
setup.exe
Resource
win10v2004-20230220-en
windows10-2004-x64
11 signatures
150 seconds
General
- Target setup.exe
- Size 293KB
- Sample230329-b3h9bsec56
- SHA256 668b3ed6f31fce4a65e5bf64bc17a92e1d9b40e8de7627508036cf6e111070bc
- MD5 80de2350870cc82e277f9b19c71e398d
- SHA1 cfafa1f2789b494c86d329370e28d7c29773600d
- SHA512 299d16184a5821405ab66a785a59a558effa5af23596dc5853926763fedd0421a0a012121b5e8790a1a0d309cf1c78ccd3480e218ceb4259a65c0d3a345e8db1
- SSDEEP 3072:iEJ/+k9A2BOlMG9qx494GRs1nhCmPQUJo7u9uG77u4Qc78ToWvQfo:/XtBuV9qDHRo2uuu4QcN
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
smokeloader
Botnet
-
lab
Extracted
Family
-
smokeloader
Version
-
2020
C2
-
http://host-file-host6.com/
-
http://host-host-file8.com/
rc4.i32
rc4.i32
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 616 set thread context of 3300 616 setup.exe 84 - Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI setup.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI setup.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI setup.exe - Modifies registry class 3 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Process not Found Key created \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ Process not Found - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3300 setup.exe 3300 setup.exe 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3220 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3300 setup.exe - Suspicious use of AdjustPrivilegeToken 16 IoCs
description pid Process Token: SeShutdownPrivilege 3220 Process not Found Token: SeCreatePagefilePrivilege 3220 Process not Found Token: SeShutdownPrivilege 3220 Process not Found Token: SeCreatePagefilePrivilege 3220 Process not Found Token: SeShutdownPrivilege 3220 Process not Found Token: SeCreatePagefilePrivilege 3220 Process not Found Token: SeShutdownPrivilege 3220 Process not Found Token: SeCreatePagefilePrivilege 3220 Process not Found Token: SeShutdownPrivilege 3220 Process not Found Token: SeCreatePagefilePrivilege 3220 Process not Found Token: SeShutdownPrivilege 3220 Process not Found Token: SeCreatePagefilePrivilege 3220 Process not Found Token: SeShutdownPrivilege 3220 Process not Found Token: SeCreatePagefilePrivilege 3220 Process not Found Token: SeShutdownPrivilege 3220 Process not Found Token: SeCreatePagefilePrivilege 3220 Process not Found - Suspicious use of FindShellTrayWindow 4 IoCs
pid Process 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 616 wrote to memory of 3300 616 setup.exe 84 PID 616 wrote to memory of 3300 616 setup.exe 84 PID 616 wrote to memory of 3300 616 setup.exe 84 PID 616 wrote to memory of 3300 616 setup.exe 84 PID 616 wrote to memory of 3300 616 setup.exe 84 PID 616 wrote to memory of 3300 616 setup.exe 84 - 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\setup.exe"C:\Users\Admin\AppData\Local\Temp\setup.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:616 -
C:\Users\Admin\AppData\Local\Temp\setup.exe"C:\Users\Admin\AppData\Local\Temp\setup.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:3300
-