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
12/01/2023, 15:00
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 267KB
- Sample230112-sdbxdsgd26
- SHA256 63305a987e73bb9249cdc8e8ac5c16131bdfd6e8ec4d1307fe18cf58199abee3
- MD5 d3da4aba65bcecea3f9763fcb5a0395d
- SHA1 78ac7e3b2da3753900b92d4f5cee9363ecb23260
- SHA512 f1bc0e923e2a3303a3ede8497c622f7b5ee27077ad5c869837fdb13bc0b1aa8c4e1f1ff2c7281de684e15005290014a08feab8c01b8309a49a3b3b810f39a8a0
- SSDEEP 6144:B6yHNcLsZhJ1sJ5UoFQRdCd2NGpMskFQH2Yp:UyOIZh+UoCRA2URkFo2Y
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/1736-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3936-135-0x0000000002BB0000-0x0000000002BB9000-memory.dmp family_smokeloader behavioral2/memory/1736-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1736-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3936 set thread context of 1736 3936 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 enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1736 file.exe 1736 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 1736 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3936 wrote to memory of 1736 3936 file.exe 82 PID 3936 wrote to memory of 1736 3936 file.exe 82 PID 3936 wrote to memory of 1736 3936 file.exe 82 PID 3936 wrote to memory of 1736 3936 file.exe 82 PID 3936 wrote to memory of 1736 3936 file.exe 82 PID 3936 wrote to memory of 1736 3936 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:3936 -
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:1736
-