Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
13/01/2023, 17:50
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 291KB
- Sample230113-wek38sbb47
- SHA256 5b6044c63525d6eb1e2a44a63c88bcfd02de89af48ee88bc084837e06101863e
- MD5 a15ebfab46120d50ebdf5e6ea20c3d27
- SHA1 278ac1c229ab2023a79767b165c1f427f117d8dd
- SHA512 f80f570baaaf09e4f8f0693a216a93ba1df46757757107a1851cd04fb757e59f3996270ab71cc3541dc605188a27ccfa202557e723bb3266712eea662ea8f4f9
- SSDEEP 6144:R+sZPt8L4ia8HB27zZGOpINp2CLVdJlR8HcdHQqSlJZ9tzrSA3c1Y:R+swnaCk7zcRWcGPZ9P3c1Y
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4540-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4736-135-0x0000000002180000-0x0000000002189000-memory.dmp family_smokeloader behavioral2/memory/4540-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4540-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4736 set thread context of 4540 4736 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 4540 file.exe 4540 file.exe 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2576 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4540 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4736 wrote to memory of 4540 4736 file.exe 79 PID 4736 wrote to memory of 4540 4736 file.exe 79 PID 4736 wrote to memory of 4540 4736 file.exe 79 PID 4736 wrote to memory of 4540 4736 file.exe 79 PID 4736 wrote to memory of 4540 4736 file.exe 79 PID 4736 wrote to memory of 4540 4736 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:4736 -
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:4540
-