Analysis
- max time kernel
151s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
22/12/2022, 03:57
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
11 signatures
150 seconds
General
- Target file.exe
- Size 229KB
- Sample221222-ehxsrsha6v
- SHA256 beedc55ed98e14d5cd96d3bb7e5017524c73c2d168ed1ab5ea6289eadaead7d6
- MD5 79ba4f332800a2dac956cbbe7dd9be02
- SHA1 27c5be57f0e8cc1ecd136ceca392299c8ef70589
- SHA512 2799ad104485fdd7203163a1b35466351e5a66018fbcc980f0daeeb5b2bee1194eb051f28b48fc2e44720ec9ca20343b53c9ce5a4614ee45b1079f449e6d6709
- SSDEEP 3072:IT9ZULuW6L5wHGe60Ho2a9NGVBOt/rMNCjgIGp+3LJVn:MIL5Nme6yK8gDMNCs/ELJV
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4616-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2276-135-0x00000000004B0000-0x00000000004B9000-memory.dmp family_smokeloader behavioral2/memory/4616-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4616-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2276 set thread context of 4616 2276 file.exe 82 - 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 3 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Process not Found Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ Process not Found Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4616 file.exe 4616 file.exe 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2632 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4616 file.exe - Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeShutdownPrivilege 2632 Process not Found Token: SeCreatePagefilePrivilege 2632 Process not Found Token: SeShutdownPrivilege 2632 Process not Found Token: SeCreatePagefilePrivilege 2632 Process not Found Token: SeShutdownPrivilege 2632 Process not Found Token: SeCreatePagefilePrivilege 2632 Process not Found - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 2632 Process not Found 2632 Process not Found - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2276 wrote to memory of 4616 2276 file.exe 82 PID 2276 wrote to memory of 4616 2276 file.exe 82 PID 2276 wrote to memory of 4616 2276 file.exe 82 PID 2276 wrote to memory of 4616 2276 file.exe 82 PID 2276 wrote to memory of 4616 2276 file.exe 82 PID 2276 wrote to memory of 4616 2276 file.exe 82
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:2276 -
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:4616
-