Analysis
- max time kernel
150s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
17/04/2023, 00:28
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
10 signatures
150 seconds
General
- Target setup.exe
- Size 350KB
- Sample230417-aschcseb9s
- SHA256 69c57aa90ca59ad02b39fc738b91ba9e858e63f4ff771f9f6aa6b3d540ca940f
- MD5 53dd01e60f53e89a06d9859caa32fdc1
- SHA1 506c29f0cad16f36b02fb859dd34545e56f5c14b
- SHA512 ab710cc6852ca5a9356918dd36c65593210725aca27741e024e174a4674395f2da7c5ca6eb7052307e57bff7e835d0441fc41268e30f92901d893cc8cd08eb52
- SSDEEP 6144:SRIhM6RMLvyzgsgnFcdOrCFoIl4B5+NErNa2:SRSM6M7yzgsgqd6Wl6SEh
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
smokeloader
Botnet
-
pu10
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.
- Executes dropped EXE 2 IoCs
pid Process 4976 uagachd 2276 uagachd - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 3804 set thread context of 4056 3804 setup.exe 85 PID 4976 set thread context of 2276 4976 uagachd 94 - Checks SCSI registry key(s) 3 TTPs 6 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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI uagachd Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI uagachd Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI uagachd - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4056 setup.exe 4056 setup.exe 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found 3136 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3136 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 4056 setup.exe 2276 uagachd - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 3136 Process not Found Token: SeCreatePagefilePrivilege 3136 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3804 wrote to memory of 4056 3804 setup.exe 85 PID 3804 wrote to memory of 4056 3804 setup.exe 85 PID 3804 wrote to memory of 4056 3804 setup.exe 85 PID 3804 wrote to memory of 4056 3804 setup.exe 85 PID 3804 wrote to memory of 4056 3804 setup.exe 85 PID 3804 wrote to memory of 4056 3804 setup.exe 85 PID 4976 wrote to memory of 2276 4976 uagachd 94 PID 4976 wrote to memory of 2276 4976 uagachd 94 PID 4976 wrote to memory of 2276 4976 uagachd 94 PID 4976 wrote to memory of 2276 4976 uagachd 94 PID 4976 wrote to memory of 2276 4976 uagachd 94 PID 4976 wrote to memory of 2276 4976 uagachd 94 - 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:3804 -
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:4056
-
-
C:\Users\Admin\AppData\Roaming\uagachdC:\Users\Admin\AppData\Roaming\uagachd1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4976 -
C:\Users\Admin\AppData\Roaming\uagachdC:\Users\Admin\AppData\Roaming\uagachd2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:2276
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Roaming\uagachd
- Size 350KB
- SHA256 69c57aa90ca59ad02b39fc738b91ba9e858e63f4ff771f9f6aa6b3d540ca940f
- MD5 53dd01e60f53e89a06d9859caa32fdc1
- SHA1 506c29f0cad16f36b02fb859dd34545e56f5c14b
- SHA512 ab710cc6852ca5a9356918dd36c65593210725aca27741e024e174a4674395f2da7c5ca6eb7052307e57bff7e835d0441fc41268e30f92901d893cc8cd08eb52
- SSDEEP 6144:SRIhM6RMLvyzgsgnFcdOrCFoIl4B5+NErNa2:SRSM6M7yzgsgqd6Wl6SEh
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\uagachd
- Size 350KB
- SHA256 69c57aa90ca59ad02b39fc738b91ba9e858e63f4ff771f9f6aa6b3d540ca940f
- MD5 53dd01e60f53e89a06d9859caa32fdc1
- SHA1 506c29f0cad16f36b02fb859dd34545e56f5c14b
- SHA512 ab710cc6852ca5a9356918dd36c65593210725aca27741e024e174a4674395f2da7c5ca6eb7052307e57bff7e835d0441fc41268e30f92901d893cc8cd08eb52
- SSDEEP 6144:SRIhM6RMLvyzgsgnFcdOrCFoIl4B5+NErNa2:SRSM6M7yzgsgqd6Wl6SEh
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\uagachd
- Size 350KB
- SHA256 69c57aa90ca59ad02b39fc738b91ba9e858e63f4ff771f9f6aa6b3d540ca940f
- MD5 53dd01e60f53e89a06d9859caa32fdc1
- SHA1 506c29f0cad16f36b02fb859dd34545e56f5c14b
- SHA512 ab710cc6852ca5a9356918dd36c65593210725aca27741e024e174a4674395f2da7c5ca6eb7052307e57bff7e835d0441fc41268e30f92901d893cc8cd08eb52
- SSDEEP 6144:SRIhM6RMLvyzgsgnFcdOrCFoIl4B5+NErNa2:SRSM6M7yzgsgqd6Wl6SEh
- MD5 SHA1 SHA512 SSDEEP