Analysis
- max time kernel
150s - max time network
145s - 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, 11:12
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
windows7-x64
7 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
- Sample230122-nat7cafh42
- SHA256 ab9503c8efce5df46589be0f7f8af9b446e085b96b84df287a2e9758276491f0
- MD5 4913b8a204f47c56d1f9b14e2222c60d
- SHA1 5dd1844c23840ecf175b90a682fc0ef383f27edc
- SHA512 32c1738e0c3764df28b5ff1681c343cdf78a5d3f22602daa404eb4ab3ad5fb8b95374a9f0d2461c5b86f4edaae35a6f532ca78de8b08571dfd6ef456e8c28abf
- SSDEEP 3072:gkhBN4X3WNmDtqcLBfPjEIkr59HCGmGT8LlTRYPntix5Dh:gkHmdthLBnjEIkeGFaRY/eV
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4720-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4332-135-0x0000000002D20000-0x0000000002D29000-memory.dmp family_smokeloader behavioral2/memory/4720-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4720-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4332 set thread context of 4720 4332 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 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 4720 file.exe 4720 file.exe 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2824 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4720 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4332 wrote to memory of 4720 4332 file.exe 80 PID 4332 wrote to memory of 4720 4332 file.exe 80 PID 4332 wrote to memory of 4720 4332 file.exe 80 PID 4332 wrote to memory of 4720 4332 file.exe 80 PID 4332 wrote to memory of 4720 4332 file.exe 80 PID 4332 wrote to memory of 4720 4332 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:4332 -
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:4720
-