Analysis
- max time kernel
150s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
12/12/2022, 13:33
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
win10v2004-20221111-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target file.exe
- Size 240KB
- Sample221212-qthnrsbd72
- SHA256 23d523c68fb7d4101367fa9271254b54ebea48c61ec70e7721515ca293a977f2
- MD5 f274cd034e563e9b0a5ed60dc29ac2e4
- SHA1 b37699435e629df81daf44e83a89194928137b2b
- SHA512 3b7c9713376105bb462a0a15ca9d45cc180695505f94c00841a3204d58087e3714a405f3fbb5905440b0c9763c7a26a3c6d7b4ad44484e29af054b17e2cab381
- SSDEEP 3072:wQng+LA3/orf1v4Zu5J7eoo2ekQirJfY1w8Bs/1DohdBcf0Eq5omKDRbR8pgX:7L5rf1vRLzEQRYBq1Doyftq5+DcpgX
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/3328-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2080-135-0x00000000001F0000-0x00000000001F9000-memory.dmp family_smokeloader behavioral2/memory/3328-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3328-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2080 set thread context of 3328 2080 file.exe 83 - 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 - Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Process not Found Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3328 file.exe 3328 file.exe 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found 784 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 784 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3328 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2080 wrote to memory of 3328 2080 file.exe 83 PID 2080 wrote to memory of 3328 2080 file.exe 83 PID 2080 wrote to memory of 3328 2080 file.exe 83 PID 2080 wrote to memory of 3328 2080 file.exe 83 PID 2080 wrote to memory of 3328 2080 file.exe 83 PID 2080 wrote to memory of 3328 2080 file.exe 83
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:2080 -
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:3328
-