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
05/02/2023, 00:14
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 192KB
- Sample230205-ajb58sfb98
- SHA256 ef6c10db0aaf70b00a040a85f05d97a84f530c7e4e6cc7728b23b8d24716e1d8
- MD5 ed23e6ed85de70cd998f6918035c362a
- SHA1 7b0e3a1ab602bdea9b69254d4f07c5669568ff9c
- SHA512 69f1e3a4a2e66851671377e6c5bb470c009bd1c557eae6a254c0406a5dd07c6b52d75188704adaf53d714f46c094e6729309700765991e5b17a815ba74420a1f
- SSDEEP 3072:5tPOTa2P+QdLL5IZWtq75DoEwgS6QE40T1cKp7JmsURLv9PhGn3PLqI5hEwN7:5tPMvdLLqZ4PE35cKp7JmJvdm3PLqI53
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4976-133-0x00000000021D0000-0x00000000021D9000-memory.dmp family_smokeloader behavioral2/memory/4060-135-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4060-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4060-138-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4976 set thread context of 4060 4976 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 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 4060 file.exe 4060 file.exe 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 380 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4060 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4976 wrote to memory of 4060 4976 file.exe 79 PID 4976 wrote to memory of 4060 4976 file.exe 79 PID 4976 wrote to memory of 4060 4976 file.exe 79 PID 4976 wrote to memory of 4060 4976 file.exe 79 PID 4976 wrote to memory of 4060 4976 file.exe 79 PID 4976 wrote to memory of 4060 4976 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:4976 -
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:4060
-