Analysis
- max time kernel
150s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
22/12/2022, 01:35
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 228KB
- Sample221222-bzn1eagh4t
- SHA256 a8c681ea3501075b96f49b0516b5dc505936eebd466951b1aa87bdf1a4afe012
- MD5 5db67bf892be445d407b45bdfd80c9a0
- SHA1 90c14e2d09085161aa600ed270e4c22a43970f64
- SHA512 244a12ad5f29f419f89683e8294c4cf8123db283524f7434440e73fb2c334c18ccf800450129f254699d7034e29995a07afe1e7b0fe50ebce648f12e54339e79
- SSDEEP 3072:hBdRLULuOL5WbILik0SB5vmyjB1l/PrMNCjgKnDNp+3LJVn:33Lqg4B0SmOB1l/TMNCsKnxELJV
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/2036-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/5072-135-0x00000000001F0000-0x00000000001F9000-memory.dmp family_smokeloader behavioral2/memory/2036-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2036-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 5072 set thread context of 2036 5072 file.exe 83 - 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 2036 file.exe 2036 file.exe 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 760 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2036 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 5072 wrote to memory of 2036 5072 file.exe 83 PID 5072 wrote to memory of 2036 5072 file.exe 83 PID 5072 wrote to memory of 2036 5072 file.exe 83 PID 5072 wrote to memory of 2036 5072 file.exe 83 PID 5072 wrote to memory of 2036 5072 file.exe 83 PID 5072 wrote to memory of 2036 5072 file.exe 83
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:5072 -
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:2036
-