Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
30/12/2022, 01:24
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
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 314KB
- Sample221230-bsdk4aef68
- SHA256 5b4e79ecc636c607ede36df7f69e20e87ab4a7cf177a0ffb61f93eee03561d83
- MD5 3118daa711b7ebf0bf74cfaf15b23093
- SHA1 a0a422548edbeea64a0d4f08277592f1efdce8dc
- SHA512 064c2c4021735048fe1ecb90f4ec772e7fd22795e10d66a460034429e3bae716cc4cf4c8642c9d578b29b611c6614c3aa802d768aa6faab7c8f175fdc2bbe2d4
- SSDEEP 3072:BXv6LLUK5L9HDP9cTDYGfyP/XExI3wWgj4c0D6hENrOKbIxe01Cz5Mqdqujodd/5:ULLl4GE66H02vyIxZ1WqqdS49
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/1136-133-0x0000000000520000-0x0000000000529000-memory.dmp family_smokeloader behavioral2/memory/4936-135-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4936-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4936-138-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1136 set thread context of 4936 1136 file.exe 80 - 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 4936 file.exe 4936 file.exe 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1040 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4936 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1136 wrote to memory of 4936 1136 file.exe 80 PID 1136 wrote to memory of 4936 1136 file.exe 80 PID 1136 wrote to memory of 4936 1136 file.exe 80 PID 1136 wrote to memory of 4936 1136 file.exe 80 PID 1136 wrote to memory of 4936 1136 file.exe 80 PID 1136 wrote to memory of 4936 1136 file.exe 80
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:1136 -
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:4936
-