Analysis
- max time kernel
150s - max time network
122s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
23/12/2022, 00:10
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 316KB
- Sample221223-af2lqafe53
- SHA256 383354b526b2d5c3aa88397b22e393b872d03e6e27f8a44e7a553ac3c3dcb30b
- MD5 a2ad75c0390304ba197c910acb3e7b2b
- SHA1 4cb6e682f420629f3c06c6622fbdf3543fb0abc6
- SHA512 ca9e77bcedffa19d6da64773750c11c81991a3fbba826b4f240eaab69117865e3facc391ee11f450c3c8fdc21afd145d843f7bab047fa2c9db71ef3f06d340a8
- SSDEEP 6144:XpLh5gjBytXE5b8jCfwd7GsA0Y/yaRR0cSpQTtyzsduHNIv:XpF5gNytXE5bMuwd7tORR0TCtyYduHNI
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4640-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2052-135-0x0000000002190000-0x0000000002199000-memory.dmp family_smokeloader behavioral2/memory/4640-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4640-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2052 set thread context of 4640 2052 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 4640 file.exe 4640 file.exe 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found 2528 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2528 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4640 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2052 wrote to memory of 4640 2052 file.exe 83 PID 2052 wrote to memory of 4640 2052 file.exe 83 PID 2052 wrote to memory of 4640 2052 file.exe 83 PID 2052 wrote to memory of 4640 2052 file.exe 83 PID 2052 wrote to memory of 4640 2052 file.exe 83 PID 2052 wrote to memory of 4640 2052 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:2052 -
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:4640
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