Analysis
- max time kernel
151s - max time network
126s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
28/12/2022, 15:55
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 222KB
- Sample221228-tcsdesag63
- SHA256 f3307aed34b9d70b5c99f0e6a2d66b13b2fc132737c9fd0539ccd401d47bf905
- MD5 e09ab4cf07a74b4ab1f0ccf3d5775fc6
- SHA1 2b162adec94cdffa43e8a427bcc9bcce544d706e
- SHA512 ac7ff7e998c246d4d8157d1c1d94b0ebf52daa8f0ec29d8e5929c68fea2b7ec206e51865102a7d9fa0be4195883bdff894ad29f349ef0ef1bffae1c55e9ece34
- SSDEEP 3072:0ba6LJCdL55fgk1ct/m1wYyL99ORHSEgdxkN/2o/2mwD3tdmdhEH:0BLJCdLURO15yRwHS5xkBP/2mi3tm
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4804-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/5096-135-0x00000000005F0000-0x00000000005F9000-memory.dmp family_smokeloader behavioral2/memory/4804-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4804-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 5096 set thread context of 4804 5096 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 4804 file.exe 4804 file.exe 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found 1028 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1028 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4804 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 5096 wrote to memory of 4804 5096 file.exe 83 PID 5096 wrote to memory of 4804 5096 file.exe 83 PID 5096 wrote to memory of 4804 5096 file.exe 83 PID 5096 wrote to memory of 4804 5096 file.exe 83 PID 5096 wrote to memory of 4804 5096 file.exe 83 PID 5096 wrote to memory of 4804 5096 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:5096 -
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:4804
-