Analysis
- max time kernel
150s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
15/01/2023, 08:13
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
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 206KB
- Sample230115-j4earscb83
- SHA256 7415602629817343a2ea89ce6bec8075f46a25e523f9efbfec07bdfb7cb4c1e3
- MD5 17e0bf3b1d8c050fb0d7ad799a6ce358
- SHA1 3d83fe29c66ac54d3b8d2322fec77c590287311a
- SHA512 b7370ace58bfd25f5c75714562f11e58b604207fe86a370da7efdfd3f7af722d89036e039cd705418cc8b74a04c0c42ebb9b13ddf618c7b3852b279c3c572c56
- SSDEEP 3072:BXtSyLXQ4FSWFHUo5EZghhuypgtCtoeMpB5s6QA8n0Mx/R02apb:ltXQ4FSYH3KO7MXW30jp
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4764-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4848-135-0x0000000002C70000-0x0000000002C79000-memory.dmp family_smokeloader behavioral2/memory/4764-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4764-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4848 set thread context of 4764 4848 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 4764 file.exe 4764 file.exe 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found 2748 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2748 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4764 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4848 wrote to memory of 4764 4848 file.exe 81 PID 4848 wrote to memory of 4764 4848 file.exe 81 PID 4848 wrote to memory of 4764 4848 file.exe 81 PID 4848 wrote to memory of 4764 4848 file.exe 81 PID 4848 wrote to memory of 4764 4848 file.exe 81 PID 4848 wrote to memory of 4764 4848 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:4848 -
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:4764
-