Analysis
- max time kernel
185s - max time network
184s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
02/12/2022, 02:49
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
win10v2004-20221111-en
windows10-2004-x64
11 signatures
150 seconds
General
- Target file.exe
- Size 191KB
- Sample221202-da2w3sfc68
- SHA256 2be057a654a2a8efbade620eb06a87f36dc10600b62bece9384fe378ae217e04
- MD5 3869a8f0c72ef601a13f4935de244ca6
- SHA1 3b27fec9b37e1ea516dd11d338ef85f0abe26ee2
- SHA512 51c807a4d71d88dab412e0c2d1d29694785521e0dde92b7708b83a9590a69fd020fb1f6088a946688ab8b59ff1b87f3e42c2d7004e9102fa7a56f9e55c9c6564
- SSDEEP 3072:GgL6ResEBNjI5jxZM5C6pbrjN7RsLIzOfciclez9Rs9E3AZxpR/ODZZ:OEBN+ZMdflsUifciom8vpsDD
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/540-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/332-135-0x00000000005E0000-0x00000000005E9000-memory.dmp family_smokeloader behavioral2/memory/540-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/540-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 332 set thread context of 540 332 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 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 - Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Process not Found Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 540 file.exe 540 file.exe 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found 2680 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2680 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 540 file.exe - Suspicious use of AdjustPrivilegeToken 8 IoCs
description pid Process Token: SeShutdownPrivilege 2680 Process not Found Token: SeCreatePagefilePrivilege 2680 Process not Found Token: SeShutdownPrivilege 2680 Process not Found Token: SeCreatePagefilePrivilege 2680 Process not Found Token: SeShutdownPrivilege 2680 Process not Found Token: SeCreatePagefilePrivilege 2680 Process not Found Token: SeShutdownPrivilege 2680 Process not Found Token: SeCreatePagefilePrivilege 2680 Process not Found - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 2680 Process not Found 2680 Process not Found - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 332 wrote to memory of 540 332 file.exe 81 PID 332 wrote to memory of 540 332 file.exe 81 PID 332 wrote to memory of 540 332 file.exe 81 PID 332 wrote to memory of 540 332 file.exe 81 PID 332 wrote to memory of 540 332 file.exe 81 PID 332 wrote to memory of 540 332 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:332 -
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:540
-