Analysis
- max time kernel
150s - max time network
143s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
18/12/2022, 14:06
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
windows7-x64
8 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 214KB
- Sample221218-redxpsfa91
- SHA256 6f254dd1d45dd16adbf3a22d3068a14156afe7f8acfacabbff404c90cd712a8f
- MD5 23a23d6168df6e66f98e2575492828ad
- SHA1 de5f4faa7f2d8767ae7f7889c4b2488ff5bf2eda
- SHA512 a8d713f2748f560aacd0cca36025f375487bee5bd000b088bc7d196a561ec4156854cca78ed257f6b9c0ebcb38bab7796e49752002ff6b608fd4a950ebe85eb8
- SSDEEP 3072:XKLIQiLEFhtRig4IygTp0aGtqavqy64g3uFwFwHOil3lk025PH:acLsOXgoq9x+iFwjlVklPH
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/2104-133-0x0000000000530000-0x0000000000539000-memory.dmp family_smokeloader behavioral2/memory/1968-135-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1968-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1968-138-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2104 set thread context of 1968 2104 file.exe 79 - 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-1-5-21-2386679933-1492765628-3466841596-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1968 file.exe 1968 file.exe 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found 1192 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1192 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1968 file.exe - Suspicious use of AdjustPrivilegeToken 22 IoCs
description pid Process Token: SeShutdownPrivilege 1192 Process not Found Token: SeCreatePagefilePrivilege 1192 Process not Found Token: SeShutdownPrivilege 1192 Process not Found Token: SeCreatePagefilePrivilege 1192 Process not Found Token: SeShutdownPrivilege 1192 Process not Found Token: SeCreatePagefilePrivilege 1192 Process not Found Token: SeShutdownPrivilege 1192 Process not Found Token: SeCreatePagefilePrivilege 1192 Process not Found Token: SeShutdownPrivilege 1192 Process not Found Token: SeCreatePagefilePrivilege 1192 Process not Found Token: SeShutdownPrivilege 1192 Process not Found Token: SeCreatePagefilePrivilege 1192 Process not Found Token: SeShutdownPrivilege 1192 Process not Found Token: SeCreatePagefilePrivilege 1192 Process not Found Token: SeShutdownPrivilege 1192 Process not Found Token: SeCreatePagefilePrivilege 1192 Process not Found Token: SeShutdownPrivilege 1192 Process not Found Token: SeCreatePagefilePrivilege 1192 Process not Found Token: SeShutdownPrivilege 1192 Process not Found Token: SeCreatePagefilePrivilege 1192 Process not Found Token: SeShutdownPrivilege 1192 Process not Found Token: SeCreatePagefilePrivilege 1192 Process not Found - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1192 Process not Found 1192 Process not Found - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2104 wrote to memory of 1968 2104 file.exe 79 PID 2104 wrote to memory of 1968 2104 file.exe 79 PID 2104 wrote to memory of 1968 2104 file.exe 79 PID 2104 wrote to memory of 1968 2104 file.exe 79 PID 2104 wrote to memory of 1968 2104 file.exe 79 PID 2104 wrote to memory of 1968 2104 file.exe 79
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:2104 -
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:1968
-