Analysis
- max time kernel
150s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
21/03/2023, 01:54
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 178KB
- Sample230321-cbjw8aac9s
- SHA256 d8f2dc4cefb85694d686f72056cb8ad7f00bf39de2a545478e2b36f15d2f5ddc
- MD5 0dc82954201970479ce7248911a2ac14
- SHA1 e57db31a85811db6531e05ddeaccc56e11534945
- SHA512 9660b69e018769e733602894795b76ef2c8aae3c6f8126cbbc603d37d694e0e092950af2c54805f40d0c867afaf9dccd66fdaf38ce6b005b633c97a676b842f4
- SSDEEP 3072:E0I+VUzA7IfN+5ouiUOxAGh8T4VdWW82l4/4:6WUkdouuOGhx822
- 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 4384 set thread context of 1460 4384 setup.exe 85 - 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 2 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-1-5-21-1675742406-747946869-1029867430-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1460 setup.exe 1460 setup.exe 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3168 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1460 setup.exe - Suspicious use of AdjustPrivilegeToken 8 IoCs
description pid Process Token: SeShutdownPrivilege 3168 Process not Found Token: SeCreatePagefilePrivilege 3168 Process not Found Token: SeShutdownPrivilege 3168 Process not Found Token: SeCreatePagefilePrivilege 3168 Process not Found Token: SeShutdownPrivilege 3168 Process not Found Token: SeCreatePagefilePrivilege 3168 Process not Found Token: SeShutdownPrivilege 3168 Process not Found Token: SeCreatePagefilePrivilege 3168 Process not Found - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3168 Process not Found 3168 Process not Found - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4384 wrote to memory of 1460 4384 setup.exe 85 PID 4384 wrote to memory of 1460 4384 setup.exe 85 PID 4384 wrote to memory of 1460 4384 setup.exe 85 PID 4384 wrote to memory of 1460 4384 setup.exe 85 PID 4384 wrote to memory of 1460 4384 setup.exe 85 PID 4384 wrote to memory of 1460 4384 setup.exe 85 - 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:4384 -
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:1460
-