Analysis
- max time kernel
150s - max time network
121s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
17/03/2023, 17:22
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20230220-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20230220-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target file.exe
- Size 297KB
- Sample230317-vxj38abc8t
- SHA256 65c4466e69c4b05caccf5c56be42676b0fbfa9bf7c609aedcb34145dfe3c7100
- MD5 ba9031fda852359a25f523add938f3b4
- SHA1 1a745a18138d437f3a614f6271f9cd78053c5953
- SHA512 be6838f39bc5edc78f4913640986d0e689ceb2eb7836756d9ceca02d248cf325adf40840cc6158b9c8fcb25ac8e41488a889e8572254529c9a7bc36470b1ae93
- SSDEEP 3072:K0dnLgZLyVGudtLal4ZwDtQ0SyCADID7B2sLOAtJ1EP0+9I4yqitZuM:LZgZLykugOwD3SyClnQSOAtJ1E8+0fu
- 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 2160 set thread context of 1612 2160 file.exe 86 - 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 file.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.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 1612 file.exe 1612 file.exe 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3160 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1612 file.exe - Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeShutdownPrivilege 3160 Process not Found Token: SeCreatePagefilePrivilege 3160 Process not Found Token: SeShutdownPrivilege 3160 Process not Found Token: SeCreatePagefilePrivilege 3160 Process not Found Token: SeShutdownPrivilege 3160 Process not Found Token: SeCreatePagefilePrivilege 3160 Process not Found Token: SeShutdownPrivilege 3160 Process not Found Token: SeCreatePagefilePrivilege 3160 Process not Found Token: SeShutdownPrivilege 3160 Process not Found Token: SeCreatePagefilePrivilege 3160 Process not Found Token: SeShutdownPrivilege 3160 Process not Found Token: SeCreatePagefilePrivilege 3160 Process not Found - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2160 wrote to memory of 1612 2160 file.exe 86 PID 2160 wrote to memory of 1612 2160 file.exe 86 PID 2160 wrote to memory of 1612 2160 file.exe 86 PID 2160 wrote to memory of 1612 2160 file.exe 86 PID 2160 wrote to memory of 1612 2160 file.exe 86 PID 2160 wrote to memory of 1612 2160 file.exe 86 - 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⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2160 -
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1612
-