Analysis
- max time kernel
150s - max time network
110s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system - submitted
20/01/2023, 01:25
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
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 192KB
- Sample230120-bsyw2aaa65
- SHA256 0b04a93712344d76e54cc4b38fafac4b7bf3aa038a10952efe0dafa542b6299e
- MD5 901e053e9e2ead341b7a6e704c5b37d4
- SHA1 10389e40122361e9deb0bf485d6e5bfce07a9fa5
- SHA512 d0421833009246399535b621ed186419aa16db5a9373cf0d2ec20ec4fbda56c586941623bc61da1abee0ab518c6af56315208bcfbe40c5f269b0ff25f7e7fae1
- SSDEEP 3072:+BN4X3pG6bqCaRzLX+Urtv5lGiWG0ECg9EUg3pzL5NtTutH:Sqk6BYaUrtrGfgGpzL5v
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/1420-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1232-135-0x0000000002CE0000-0x0000000002CE9000-memory.dmp family_smokeloader behavioral2/memory/1420-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1420-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1232 set thread context of 1420 1232 file.exe 80 - Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1420 file.exe 1420 file.exe 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found 3064 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3064 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1420 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1232 wrote to memory of 1420 1232 file.exe 80 PID 1232 wrote to memory of 1420 1232 file.exe 80 PID 1232 wrote to memory of 1420 1232 file.exe 80 PID 1232 wrote to memory of 1420 1232 file.exe 80 PID 1232 wrote to memory of 1420 1232 file.exe 80 PID 1232 wrote to memory of 1420 1232 file.exe 80
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:1232 -
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:1420
-