Analysis
- max time kernel
150s - max time network
139s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
02/01/2023, 19:44
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-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 212KB
- Sample230102-yfswksbb8v
- SHA256 796ab184912db42dce497c51a1e0721345aab0766f7b25d97ccc10cdb7dea521
- MD5 6b91754dc91d468dd06b4dae6ed8eef4
- SHA1 27bd5391dd9d4c117254c51ecc8de5e4fe02350f
- SHA512 e8b3da0a6b10d135101f2a0ba3ddda9224a6869d9e5036d5581fbfca561f48475c76f690d51aa7946467ad82e658403d70aed536f430222d86497e55c9e0f4dd
- SSDEEP 3072:lXprnqHHTLF+k+SHLF5VHDaa+SVoIjbQalIjyhZhVhSP:hsTLoWHLBDP+SVoqQaCOxV
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/3988-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4692-135-0x00000000005A0000-0x00000000005A9000-memory.dmp family_smokeloader behavioral2/memory/3988-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3988-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4692 set thread context of 3988 4692 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 3988 file.exe 3988 file.exe 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2484 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3988 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4692 wrote to memory of 3988 4692 file.exe 80 PID 4692 wrote to memory of 3988 4692 file.exe 80 PID 4692 wrote to memory of 3988 4692 file.exe 80 PID 4692 wrote to memory of 3988 4692 file.exe 80 PID 4692 wrote to memory of 3988 4692 file.exe 80 PID 4692 wrote to memory of 3988 4692 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:4692 -
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:3988
-