Analysis
- max time kernel
169s - max time network
177s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
03/12/2022, 07:30
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-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 351KB
- Sample221203-jbs88aac8x
- SHA256 9f4741a24fcebd8671855e6fb2d623e48900ef3c5cf389b4cc6a8be8f2cc1f84
- MD5 abd5bb0cb00bd03d9d131845bcaa41c0
- SHA1 01ee9e0952f82a954f38b3b93e8d99c78aca74cf
- SHA512 f4a4e9624caac3740b0314c1786bce60cf94a2245f9cfc05c458aaabe0297d2a49b9dee20b636b543c06fb96eef3f11adf4035d228ffc872bdc31538d3ada593
- SSDEEP 3072:Dw833jMyCdHh5QRKYRJdrCqWEWwKiSz67gDAMIZgWK5uhIh3p2dIYfjZq:hnjMyMHcRLdrC3wKLjMTaN5uuREKej
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4712-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3312-135-0x0000000000030000-0x0000000000039000-memory.dmp family_smokeloader behavioral2/memory/4712-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4712-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3312 set thread context of 4712 3312 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 queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4712 file.exe 4712 file.exe 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found 2592 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2592 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4712 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3312 wrote to memory of 4712 3312 file.exe 79 PID 3312 wrote to memory of 4712 3312 file.exe 79 PID 3312 wrote to memory of 4712 3312 file.exe 79 PID 3312 wrote to memory of 4712 3312 file.exe 79 PID 3312 wrote to memory of 4712 3312 file.exe 79 PID 3312 wrote to memory of 4712 3312 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:3312 -
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:4712
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