Analysis
- max time kernel
160s - max time network
159s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
08/02/2023, 23:26
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
8 signatures
150 seconds
General
- Target file.exe
- Size 321KB
- Sample230208-3ettpsac3w
- SHA256 87909c654fc3d19bcc28795d71c5c8a94f8ac0a308380a433d8e62a3a93c062f
- MD5 2c73f50dc51d21112c2ec3f9fc56ae8d
- SHA1 ec19ecf368a823f68c37266ed030e7a42aaa6178
- SHA512 d462054cc7c25e9384af91d22f0ec70753d913c08b88763ee2e0185907fc61b2c00b150802a56f3bb8fcdec7eaef3406f0e905d1413e774e3df2f5ed9a3e37aa
- SSDEEP 3072:SPgq1Mu4U5RFWGZcol/zaJpWbCLBsiJukrpj+XuYsWQDiuLp0gv:SdUCWAP4pWbEBFJuEX9Liq5v
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/2256-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4352-135-0x0000000000720000-0x0000000000729000-memory.dmp family_smokeloader behavioral2/memory/2256-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2256-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4352 set thread context of 2256 4352 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 2256 file.exe 2256 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 2256 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4352 wrote to memory of 2256 4352 file.exe 79 PID 4352 wrote to memory of 2256 4352 file.exe 79 PID 4352 wrote to memory of 2256 4352 file.exe 79 PID 4352 wrote to memory of 2256 4352 file.exe 79 PID 4352 wrote to memory of 2256 4352 file.exe 79 PID 4352 wrote to memory of 2256 4352 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:4352 -
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:2256
-