Analysis
- max time kernel
150s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
29/12/2022, 15:12
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 311KB
- Sample221229-sk786sdc76
- SHA256 95d5a2ae8c58598282ccc1cfe32a7fb3827aa19a9aee0001cd0ec25a3b5eec64
- MD5 de61e3d9a4ace0519e957dc51994cf34
- SHA1 9ab9c08bb658f81c7dcdcaf9f32cc6e9efe53c38
- SHA512 3906af2f1647f0dde1826a30ba4f5f851d5e3fdf6da77e1d13cbe058df16798c406b3b032be82c28ca8a62cb498d7af06110d9fb918892515a5ffb12db575257
- SSDEEP 6144:NxL1L5eZzupJqQeNj4yIxZ1WqqdS09JT:nZKzuLteNj4dYX
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4512-134-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4480-135-0x0000000000A50000-0x0000000000A59000-memory.dmp family_smokeloader behavioral2/memory/4512-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4512-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4480 set thread context of 4512 4480 file.exe 84 - 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 4512 file.exe 4512 file.exe 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1936 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4512 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4480 wrote to memory of 4512 4480 file.exe 84 PID 4480 wrote to memory of 4512 4480 file.exe 84 PID 4480 wrote to memory of 4512 4480 file.exe 84 PID 4480 wrote to memory of 4512 4480 file.exe 84 PID 4480 wrote to memory of 4512 4480 file.exe 84 PID 4480 wrote to memory of 4512 4480 file.exe 84
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:4480 -
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:4512
-