Analysis
- max time kernel
150s - max time network
142s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
05/02/2023, 00:56
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
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 192KB
- Sample230205-back3sag41
- SHA256 fd49a87f4d5043940575bc9774dc492ab71f58661e697bbf788e87b4a895365f
- MD5 b572ca69399c341a96de4f224093090e
- SHA1 36c5ba1a405a0fde22e89578cb90d49394a4b4c8
- SHA512 1d1ee4bc157573c63867bf8c8ca57e4a47e944ccc9eaea09b7825abb34ca5cec58f9fb4e312059138219d1a8ae9fd5412e21992c3cec50bdd233a3620d19fbef
- SSDEEP 3072:4M/ONCwr5/LLWgwXWI75HmhKevHQWOIri4wRo411OaxzR2aU:4M/s9LLQXvmQevQqwSOr
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4604-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3576-135-0x0000000000620000-0x0000000000629000-memory.dmp family_smokeloader behavioral2/memory/4604-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4604-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3576 set thread context of 4604 3576 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 queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4604 file.exe 4604 file.exe 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found 3080 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3080 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4604 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3576 wrote to memory of 4604 3576 file.exe 83 PID 3576 wrote to memory of 4604 3576 file.exe 83 PID 3576 wrote to memory of 4604 3576 file.exe 83 PID 3576 wrote to memory of 4604 3576 file.exe 83 PID 3576 wrote to memory of 4604 3576 file.exe 83 PID 3576 wrote to memory of 4604 3576 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:3576 -
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:4604
-