Analysis
- max time kernel
151s - max time network
110s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
08/02/2023, 04:11
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
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 194KB
- Sample230208-erxt5ahb68
- SHA256 d6dd09b2a07d1e0ffa6bb3eaf8173e7cd158a13db35189500c3dff37bfee0a71
- MD5 ba266f8e0385c4b245b1f5313e81fb33
- SHA1 d6999dbcd0fa9c3b07f1fb6ddaefefa8465a61de
- SHA512 752d5646fdc8919b1fb7f2b58d7fca54c995931c52e608fc48df44edefaef9ec0c8874b17fc80045dc76aff35ac7a80ba0e7517b7e101cb5ad422f5ddc2fe5d3
- SSDEEP 3072:ozsOb7TKdksQDLvjmKOWja5qh8cG3FhL3cJ52ggoAVQfz:ozsI2uLvDODBLsJZgoAVQfz
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/924-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3916-135-0x00000000006F0000-0x00000000006F9000-memory.dmp family_smokeloader behavioral2/memory/924-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/924-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3916 set thread context of 924 3916 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 924 file.exe 924 file.exe 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found 2376 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2376 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 924 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3916 wrote to memory of 924 3916 file.exe 79 PID 3916 wrote to memory of 924 3916 file.exe 79 PID 3916 wrote to memory of 924 3916 file.exe 79 PID 3916 wrote to memory of 924 3916 file.exe 79 PID 3916 wrote to memory of 924 3916 file.exe 79 PID 3916 wrote to memory of 924 3916 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:3916 -
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:924
-