Analysis
- max time kernel
150s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
17/01/2023, 21:55
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 208KB
- Sample230117-1srkdsgf87
- SHA256 eb65443a50764458c31e3bb4bfc307f06a64f26fea6b69f062787d273f577b2d
- MD5 141d06b627e543883ca128665e568182
- SHA1 5b39b39e8bb714e711fdb02844fcf965d73c053e
- SHA512 ce918cb99724271e934329429c9a38993587ccfeae4329ba10f90a165e6b1827a4773a38dca889c65d6835cfd44744084377ee89ab094944f60a659acb2c626f
- SSDEEP 3072:naX321BRWbnk5/xRzg1LVxaK5MFHEZ81kv7V8d0t4qnA:n6pLoxRuxxT7NveEL
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4740-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4968-135-0x0000000002D30000-0x0000000002D39000-memory.dmp family_smokeloader behavioral2/memory/4740-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4740-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4968 set thread context of 4740 4968 file.exe 82 - 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 4740 file.exe 4740 file.exe 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 752 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4740 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4968 wrote to memory of 4740 4968 file.exe 82 PID 4968 wrote to memory of 4740 4968 file.exe 82 PID 4968 wrote to memory of 4740 4968 file.exe 82 PID 4968 wrote to memory of 4740 4968 file.exe 82 PID 4968 wrote to memory of 4740 4968 file.exe 82 PID 4968 wrote to memory of 4740 4968 file.exe 82
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:4968 -
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:4740
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