Analysis
- max time kernel
150s - 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
22/01/2023, 08:25
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 194KB
- Sample230122-kbamjsff57
- SHA256 3130adef215f115c9dd6202cfdfa8b61dca211b13cbe5bd8cc4b0f5a65a8a371
- MD5 700d6628881ef09e563fb677b23b6c38
- SHA1 d3eee23f296ac0114de609071c7dcfd2eea3946f
- SHA512 aaebc2604722a613d96fd64a1df84358dd2c9694df24fd1bac2f6c1757eb27a87aab6e1f30a6ea91719a81ac70a98a205114f1c38789dd57796e430f71bb7c53
- SSDEEP 3072:8BN4X3JmzCZ3JLfAn/ut5iaMsultinkcA4MQ3DPjxZafklxAdLk:0mxZLfw/uvMsAtJaTbef2M
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/756-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4900-135-0x0000000002D10000-0x0000000002D19000-memory.dmp family_smokeloader behavioral2/memory/756-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/756-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4900 set thread context of 756 4900 file.exe 78 - 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 756 file.exe 756 file.exe 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3060 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 756 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4900 wrote to memory of 756 4900 file.exe 78 PID 4900 wrote to memory of 756 4900 file.exe 78 PID 4900 wrote to memory of 756 4900 file.exe 78 PID 4900 wrote to memory of 756 4900 file.exe 78 PID 4900 wrote to memory of 756 4900 file.exe 78 PID 4900 wrote to memory of 756 4900 file.exe 78
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:4900 -
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:756
-