Analysis
- max time kernel
151s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
08/02/2023, 18:31
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-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 322KB
- Sample230208-w52tnsec33
- SHA256 15c5c832b28cd8fced64386cb021d28223a08c8ded248dd13863abfd2974b06e
- MD5 197878f44a5a771680a02dde0a2ecfa8
- SHA1 97150aef0c1359e913e7542818fb28178be49bfe
- SHA512 d11031048e87797d9ab8e5d0d2352f4873a7e84df8196fe52c5914266e1ef874b9ced1babc8416921a19ed6f6aab78b1d0d0174f4a065dd468127de5de507127
- SSDEEP 3072:pPg8SK2yzxR9z0yR579koDIH9vOa1L6BjF4B2sWQDiuLpN2yvJ:pvyy5z15GoMHopBcjLiqkyvJ
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4140-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/5104-135-0x00000000022C0000-0x00000000022C9000-memory.dmp family_smokeloader behavioral2/memory/4140-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4140-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 5104 set thread context of 4140 5104 file.exe 81 - 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 - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4140 file.exe 4140 file.exe 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3060 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4140 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 5104 wrote to memory of 4140 5104 file.exe 81 PID 5104 wrote to memory of 4140 5104 file.exe 81 PID 5104 wrote to memory of 4140 5104 file.exe 81 PID 5104 wrote to memory of 4140 5104 file.exe 81 PID 5104 wrote to memory of 4140 5104 file.exe 81 PID 5104 wrote to memory of 4140 5104 file.exe 81
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:5104 -
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:4140
-