Analysis
- max time kernel
150s - max time network
137s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
18/12/2022, 01:31
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 213KB
- Sample221218-bxdfwsac74
- SHA256 cf4b341e9cf4f76a1c35793e27977c8cc330c5114fd1774242d65bad9ac3d50e
- MD5 52b76504266b39df1d6efda6269ebefc
- SHA1 b54744f9c546f288ced4023eb1ed174d7e099d12
- SHA512 e95d1b31d62d87f8cc86c5aac455a3a9f4bfff3e184b174d22a6c23a3f6feed256096b1ecb17c2527d423125046442bd67c14016bbbd3a45222437a1422a506f
- SSDEEP 3072:hzDoUqmjL5JaZwR/mQ3htuU9w0IiWH0Vw8/g3xoG8G3ERWR3LV:1kUNjL5JaaaUGjKrg3C8U0VB
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4128-133-0x00000000001F0000-0x00000000001F9000-memory.dmp family_smokeloader behavioral2/memory/4736-135-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4736-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4736-138-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4128 set thread context of 4736 4128 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 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 4736 file.exe 4736 file.exe 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found 968 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 968 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4736 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4128 wrote to memory of 4736 4128 file.exe 80 PID 4128 wrote to memory of 4736 4128 file.exe 80 PID 4128 wrote to memory of 4736 4128 file.exe 80 PID 4128 wrote to memory of 4736 4128 file.exe 80 PID 4128 wrote to memory of 4736 4128 file.exe 80 PID 4128 wrote to memory of 4736 4128 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:4128 -
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:4736
-