Analysis
- max time kernel
150s - max time network
125s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
09/01/2023, 23:56
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
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 327KB
- Sample230109-3yz5tsbf8w
- SHA256 3c77002e24f0beb325c6f0603d7186016eec057eef4d57fcba067dafca5b7322
- MD5 ec91db0dd22da896e35c534cc3516a83
- SHA1 efcc14d04408065f710470a7ccce8187b6b5a996
- SHA512 4698f7f63b5cd8fa8df2abc82e9cdb43239c00d8eb2390b6658bc69f291298ebc42aa57c329837353112a3210379097483e3f62dd4d97bfd4122936f3a398b2e
- SSDEEP 3072:rX3LiKOl3ZAzlk51KdTbwZtm7fed5mThnUZPiLJXL7EReBA0X9fUtqQJev177:DQlaz6KGt8ed5mThePiLJ7dBA0XhIJY
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/1152-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4624-135-0x0000000000610000-0x0000000000619000-memory.dmp family_smokeloader behavioral2/memory/1152-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1152-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4624 set thread context of 1152 4624 file.exe 77 - 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 1152 file.exe 1152 file.exe 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found 2792 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2792 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1152 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4624 wrote to memory of 1152 4624 file.exe 77 PID 4624 wrote to memory of 1152 4624 file.exe 77 PID 4624 wrote to memory of 1152 4624 file.exe 77 PID 4624 wrote to memory of 1152 4624 file.exe 77 PID 4624 wrote to memory of 1152 4624 file.exe 77 PID 4624 wrote to memory of 1152 4624 file.exe 77
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:4624 -
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:1152
-