Analysis
- max time kernel
150s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
07/02/2023, 02:42
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 298KB
- Sample230207-c61s8acc4x
- SHA256 ec734eb1b4d74abfed6d5328fb980e24f78fffd39d19a21d2d008b802d2c41c5
- MD5 1b2a209423923c8095ed6c9b234bdb08
- SHA1 39a042adbe2101f24cd59dc5b734b709851ae0fe
- SHA512 34d2ec1aebd0af0314c6bed8043b35071628552a5b8a0335d74a99dbd87772a0fda4a8515e3705b0c9f396b4c15237ae268c48d3ec6776e53c132867d5a705ed
- SSDEEP 3072:elb6bBJLCaRmqps2VGUJISjvcAlpE/dohTGuQjiMTE52vVa5H:4KJLCZms2Xv3jElo5GuQj91a
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/2976-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4760-135-0x0000000000640000-0x0000000000649000-memory.dmp family_smokeloader behavioral2/memory/2976-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2976-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4760 set thread context of 2976 4760 file.exe 79 - 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 2976 file.exe 2976 file.exe 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found 2616 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2616 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2976 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4760 wrote to memory of 2976 4760 file.exe 79 PID 4760 wrote to memory of 2976 4760 file.exe 79 PID 4760 wrote to memory of 2976 4760 file.exe 79 PID 4760 wrote to memory of 2976 4760 file.exe 79 PID 4760 wrote to memory of 2976 4760 file.exe 79 PID 4760 wrote to memory of 2976 4760 file.exe 79
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:4760 -
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:2976
-