Analysis
- max time kernel
150s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system - submitted
21/01/2023, 10:32
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220901-en
11 signatures
150 seconds
General
- Target file.exe
- Size 196KB
- Sample230121-mkxvjsdf6s
- SHA256 665b390750d3171dd58391fc32be89ad913ef74cfafb98a78f1ea3b5f852ed39
- MD5 ceca20b2d4144c11cf0cc8d4218d9a74
- SHA1 2a10750bd26d67b73b2f8dddfe2593c6a2e44261
- SHA512 351ff578c74f3ba3d1e9e79bb83d94e51694fe6ef08a6bbc001017d12afb74a35fc172ccc9f232fd054a207500246aac0885c70081144673e2d296f9980ea46f
- SSDEEP 3072:MBN4X35gPkBpADlL/hK57F5rQOrRs+OR4SCkvdG5bAEehlyt4:Em6PZlLw57EO4yJIdYANh
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4828-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4828-135-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4984-136-0x0000000002E30000-0x0000000002E39000-memory.dmp family_smokeloader behavioral2/memory/4828-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4984 set thread context of 4828 4984 file.exe 81 - Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key queried \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-1-5-21-929662420-1054238289-2961194603-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4828 file.exe 4828 file.exe 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3068 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4828 file.exe - Suspicious use of AdjustPrivilegeToken 30 IoCs
description pid Process Token: SeShutdownPrivilege 3068 Process not Found Token: SeCreatePagefilePrivilege 3068 Process not Found Token: SeShutdownPrivilege 3068 Process not Found Token: SeCreatePagefilePrivilege 3068 Process not Found Token: SeShutdownPrivilege 3068 Process not Found Token: SeCreatePagefilePrivilege 3068 Process not Found Token: SeShutdownPrivilege 3068 Process not Found Token: SeCreatePagefilePrivilege 3068 Process not Found Token: SeShutdownPrivilege 3068 Process not Found Token: SeCreatePagefilePrivilege 3068 Process not Found Token: SeShutdownPrivilege 3068 Process not Found Token: SeCreatePagefilePrivilege 3068 Process not Found Token: SeShutdownPrivilege 3068 Process not Found Token: SeCreatePagefilePrivilege 3068 Process not Found Token: SeShutdownPrivilege 3068 Process not Found Token: SeCreatePagefilePrivilege 3068 Process not Found Token: SeShutdownPrivilege 3068 Process not Found Token: SeCreatePagefilePrivilege 3068 Process not Found Token: SeShutdownPrivilege 3068 Process not Found Token: SeCreatePagefilePrivilege 3068 Process not Found Token: SeShutdownPrivilege 3068 Process not Found Token: SeCreatePagefilePrivilege 3068 Process not Found Token: SeShutdownPrivilege 3068 Process not Found Token: SeCreatePagefilePrivilege 3068 Process not Found Token: SeShutdownPrivilege 3068 Process not Found Token: SeCreatePagefilePrivilege 3068 Process not Found Token: SeShutdownPrivilege 3068 Process not Found Token: SeCreatePagefilePrivilege 3068 Process not Found Token: SeShutdownPrivilege 3068 Process not Found Token: SeCreatePagefilePrivilege 3068 Process not Found - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3068 Process not Found 3068 Process not Found - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4984 wrote to memory of 4828 4984 file.exe 81 PID 4984 wrote to memory of 4828 4984 file.exe 81 PID 4984 wrote to memory of 4828 4984 file.exe 81 PID 4984 wrote to memory of 4828 4984 file.exe 81 PID 4984 wrote to memory of 4828 4984 file.exe 81 PID 4984 wrote to memory of 4828 4984 file.exe 81
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:4984 -
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:4828
-