Analysis
- max time kernel
150s - max time network
127s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
02/01/2023, 02:23
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 239KB
- Sample230102-ct5lmsdc43
- SHA256 381c0b2266ad95aed0a7c10a4662777cbc7ebfa0d6bed4bfdce239b5183bf3e1
- MD5 caf6ffb3cfe4ff340629f16c947ac3cd
- SHA1 d41dc8a9e55a4a510a1fcef61333d3d2cd0aa6e2
- SHA512 726410f33632e3e0ee40387ca8cbd5ca7bd6c6e33b5b150da667a8fc27e06e2bc64256f49fd91db8bed71f6826c6e0595c9c47c5e8090f606c15ec2d8e9db2be
- SSDEEP 3072:uXRPpkL/QABUh5x1FiHbiPjqGJF0+OVf7UDkr9+AkId//W6+WooX:2MLnUDFiHbibqWOvTUARDf
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/1556-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3448-135-0x0000000002060000-0x0000000002069000-memory.dmp family_smokeloader behavioral2/memory/1556-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1556-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3448 set thread context of 1556 3448 file.exe 82 - 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 1556 file.exe 1556 file.exe 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 512 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1556 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3448 wrote to memory of 1556 3448 file.exe 82 PID 3448 wrote to memory of 1556 3448 file.exe 82 PID 3448 wrote to memory of 1556 3448 file.exe 82 PID 3448 wrote to memory of 1556 3448 file.exe 82 PID 3448 wrote to memory of 1556 3448 file.exe 82 PID 3448 wrote to memory of 1556 3448 file.exe 82
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:3448 -
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:1556
-