Analysis
- max time kernel
189s - max time network
192s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
11/02/2023, 03:10
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 386KB
- Sample230211-dn2s8shc39
- SHA256 572feb78bfc598e690ab51966e9b9d8bdce14fe3f356fa7d6a42c3f014f38ae9
- MD5 4289ad75d58d424c9499da61eb69eea7
- SHA1 55797003a9e7a73dbcdd965bc7762149751296d5
- SHA512 e6585608f4b72070bfc022e2ebb0f6dfd21b1cef6e20d7284d41ab85849e5c19fbccbe941d833ad3ad2610cc1a93d2d4294bdbf0d711416715410fd87c63e3b4
- SSDEEP 3072:qlOzhHzdG+s5xt9IQCqcbfW7chxuDBHaEnS2/zHNLFCWk76tPM8qRi0Qo7sTm2Bh:WGd8kQWbf6chxEgExNM/2MdkTDpZt5D
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4496-133-0x0000000000760000-0x0000000000769000-memory.dmp family_smokeloader behavioral2/memory/848-135-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/848-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/848-138-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4496 set thread context of 848 4496 file.exe 78 - 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 - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 848 file.exe 848 file.exe 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found 3036 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3036 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 848 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4496 wrote to memory of 848 4496 file.exe 78 PID 4496 wrote to memory of 848 4496 file.exe 78 PID 4496 wrote to memory of 848 4496 file.exe 78 PID 4496 wrote to memory of 848 4496 file.exe 78 PID 4496 wrote to memory of 848 4496 file.exe 78 PID 4496 wrote to memory of 848 4496 file.exe 78
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:4496 -
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:848
-