Analysis
- max time kernel
151s - max time network
139s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
13/01/2023, 04:34
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 261KB
- Sample230113-e64k8aaa2v
- SHA256 fb82e04c70d64efd7544b5fa826e1efdd90c75ea396adac9c9562325997f3ad7
- MD5 c657cb8392291d68365116184a7021ce
- SHA1 2700ce054f3d4f925bb04627c0420dba4921b3ed
- SHA512 5ca301db3f3c64ca9271a20297f7ba82e1ad161d5268002bba979ef8e06898e9da81023ce32634092ecd86ab757f3fe68a2aef2b17ced6794e0235374815968c
- SSDEEP 3072:IXJnPIEjsW5C+dyAQZnoseGWoYyJ/Ci2IEIFSI23KKGgMe5LRFYUEA7:cSEYricY6AvYd2rwUR
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/3604-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1368-135-0x0000000002E40000-0x0000000002E49000-memory.dmp family_smokeloader behavioral2/memory/3604-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3604-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1368 set thread context of 3604 1368 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 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 3604 file.exe 3604 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 3604 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1368 wrote to memory of 3604 1368 file.exe 81 PID 1368 wrote to memory of 3604 1368 file.exe 81 PID 1368 wrote to memory of 3604 1368 file.exe 81 PID 1368 wrote to memory of 3604 1368 file.exe 81 PID 1368 wrote to memory of 3604 1368 file.exe 81 PID 1368 wrote to memory of 3604 1368 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:1368 -
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:3604
-