Analysis
- max time kernel
153s - max time network
157s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
11/02/2023, 05:15
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 386KB
- Sample230211-fxkmeshc62
- SHA256 9e6d46159f6f9749675bb53df837d7c7a696ce55e7d3e5ed187bbe5213830eb3
- MD5 cf089fe5e9f8ca7fafddd5dee1430282
- SHA1 b0a507aaf3deed0bb99e696a0d117e783bb5640a
- SHA512 31ffb7a9905e7b645f0a1a0c382c53283c43e964b346e01848eed6fd15df9f2ff6ee83e28b88937ec164be56d37307900469537c61032ac8c2652f653ed06600
- SSDEEP 6144:fj0d7bU50BOW37WJMGWgQwMdkTy6Zt5d:fIBrjl5wMdk2
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4564-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4636-135-0x0000000000720000-0x0000000000729000-memory.dmp family_smokeloader behavioral2/memory/4564-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4564-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4636 set thread context of 4564 4636 file.exe 81 - 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 4564 file.exe 4564 file.exe 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found 2348 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2348 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4564 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4636 wrote to memory of 4564 4636 file.exe 81 PID 4636 wrote to memory of 4564 4636 file.exe 81 PID 4636 wrote to memory of 4564 4636 file.exe 81 PID 4636 wrote to memory of 4564 4636 file.exe 81 PID 4636 wrote to memory of 4564 4636 file.exe 81 PID 4636 wrote to memory of 4564 4636 file.exe 81
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:4636 -
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:4564
-