Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
03/12/2022, 18:24
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 350KB
- Sample221203-w129msdg96
- SHA256 7e4ed6746e495e2265d594d7799f78bb947b8e035502ea5214f4f8b078dc2c2a
- MD5 e2d0350e74735f3198dadd352ea95992
- SHA1 fe2c54187ed962fed100e2b2749c2ef2576c3788
- SHA512 3eca0a2091c635594fdb17fa8af1b2d97bcf2fa2c9ba18288427dcac562140b033477e2fe4afa90367f44ab0fd1526518f20141a035db4a3c8498dad23643cdc
- SSDEEP 3072:YMYjLPN+mI5AwiRxp3CHK33NKPLRgbk1cSaJuYGnWNTC6NRMHnlXVuc3B2GAQHYg:wLl+m5lwZtAueJ2nMW2RqnN3BM0Y
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4772-134-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4976-136-0x0000000000460000-0x0000000000469000-memory.dmp family_smokeloader behavioral2/memory/4772-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4772-138-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4976 set thread context of 4772 4976 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 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 4772 file.exe 4772 file.exe 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 380 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4772 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4976 wrote to memory of 4772 4976 file.exe 79 PID 4976 wrote to memory of 4772 4976 file.exe 79 PID 4976 wrote to memory of 4772 4976 file.exe 79 PID 4976 wrote to memory of 4772 4976 file.exe 79 PID 4976 wrote to memory of 4772 4976 file.exe 79 PID 4976 wrote to memory of 4772 4976 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:4976 -
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:4772
-