Analysis
- max time kernel
151s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
14/02/2023, 00:42
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 195KB
- Sample230214-a2b8yshe24
- SHA256 5eacf089ec5e409ab47261ca2f6ff03ef904345a1ccc0d9e39bab0338c5f3181
- MD5 97ab751ee01bbe32fab117766b191b8a
- SHA1 bf4b43c42d914eafa72da42f07d1ec5a157b3f60
- SHA512 835e9240ab9035e409173833478276b1a72a46cc2a172476ecfff4027fcd8e503ac903c29c3c721c67193b8f77cd38089ef9de8d60515fcb79434164dcbd2bdf
- SSDEEP 3072:ypnLuHXa5zUmI9nePYgrTt/Zk6K+Fpyopy2JYxK2Zev+IwDb8Q:ykaUfQAgrT4/+21ACK2QwP8
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/3844-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1932-135-0x00000000005B0000-0x00000000005B9000-memory.dmp family_smokeloader behavioral2/memory/3844-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3844-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1932 set thread context of 3844 1932 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 3844 file.exe 3844 file.exe 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2220 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3844 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1932 wrote to memory of 3844 1932 file.exe 81 PID 1932 wrote to memory of 3844 1932 file.exe 81 PID 1932 wrote to memory of 3844 1932 file.exe 81 PID 1932 wrote to memory of 3844 1932 file.exe 81 PID 1932 wrote to memory of 3844 1932 file.exe 81 PID 1932 wrote to memory of 3844 1932 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:1932 -
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:3844
-