Analysis
- max time kernel
150s - max time network
140s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
07/01/2023, 04:50
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 309KB
- Sample230107-ff9j8acg37
- SHA256 6cb38be508d934603135a1270dcc27b4f47a5369123da11a67283a81868494d9
- MD5 35aefe3689fa4771b0677c8cc1cddf0f
- SHA1 5cd9ca3bfa4a0a338b5e07b9a476aed7375b0984
- SHA512 396d17480bb5bd72e6aec053b64642cf15aec99ca441d1e89cc7e9feca4fb6c360eb27f88b685dbd9f20694918508e635de27ef8b0ff4eea37590d77a6b97ad9
- SSDEEP 3072:VWXsLfQ0tP5eZVHBRpX1iUgu3VKjwH4Z5Ks47KllXri6zSb9zLPY:AsLfptYbHXi7s455WKlBi6Wb93Y
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/3752-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4612-135-0x0000000002CB0000-0x0000000002CB9000-memory.dmp family_smokeloader behavioral2/memory/3752-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3752-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4612 set thread context of 3752 4612 file.exe 81 - 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 3752 file.exe 3752 file.exe 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found 2424 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2424 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3752 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4612 wrote to memory of 3752 4612 file.exe 81 PID 4612 wrote to memory of 3752 4612 file.exe 81 PID 4612 wrote to memory of 3752 4612 file.exe 81 PID 4612 wrote to memory of 3752 4612 file.exe 81 PID 4612 wrote to memory of 3752 4612 file.exe 81 PID 4612 wrote to memory of 3752 4612 file.exe 81
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:4612 -
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:3752
-