Analysis
- max time kernel
151s - max time network
127s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
08/01/2023, 18:04
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 260KB
- Sample230108-wnkh3aec73
- SHA256 fd7602a37185f951152308c2ce1b92fea264e9e53d80ff00e918a71871a74df9
- MD5 6fd938309e46f566438fabaad9fb5113
- SHA1 0eb57794ce9e734c41959e221b32457e79c92d73
- SHA512 b20609314b07bb75f4f6e32390787e043cfc4a12edcc8cd94371c5a0ce70da39faaad32d171706fc3ab90458620c76903210e376341f4f0b72956bea3630ba78
- SSDEEP 3072:lXhu5kM4vzLGQE3w3Cqd5n2c+03u2aaE327AHtN9hZCRRzMuWZgd3i:hJLGa3CqGEu2aaE32stZcqgd3
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4344-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4136-135-0x0000000002BB0000-0x0000000002BB9000-memory.dmp family_smokeloader behavioral2/memory/4344-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4344-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4136 set thread context of 4344 4136 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 4344 file.exe 4344 file.exe 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found 3020 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3020 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4344 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4136 wrote to memory of 4344 4136 file.exe 84 PID 4136 wrote to memory of 4344 4136 file.exe 84 PID 4136 wrote to memory of 4344 4136 file.exe 84 PID 4136 wrote to memory of 4344 4136 file.exe 84 PID 4136 wrote to memory of 4344 4136 file.exe 84 PID 4136 wrote to memory of 4344 4136 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:4136 -
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:4344
-