Analysis
- max time kernel
151s - max time network
159s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
12/02/2023, 17:13
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
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 187KB
- Sample230212-vreasafd24
- SHA256 c5a34f1199c301a8dc06082dc88f68fe474d4d7be6fec55aee4c313499cd86f8
- MD5 5a140d2ed4b1e941e728ce70cae5caa7
- SHA1 81e5f0bc4ab325dcdf1f5fd69b5b3d0c70dc2267
- SHA512 3693e4b91eac95f5c3fb075ecef868f5f2f18a6fb3f3af11bf929d670505079b70768280c69422e01e373026b736871f270065228f8bb0511d1f99afe9288e15
- SSDEEP 3072:S7rv+rGc5idt2pAQJYGvy4lwQ51wS6GobDTRzA4m:sjLbdpQqApN51VNoHhA4
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/2488-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4636-135-0x00000000008D0000-0x00000000008D9000-memory.dmp family_smokeloader behavioral2/memory/2488-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2488-137-0x0000000000400000-0x0000000000409000-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 2488 4636 file.exe 79 - 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 2488 file.exe 2488 file.exe 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found 2020 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2020 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2488 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4636 wrote to memory of 2488 4636 file.exe 79 PID 4636 wrote to memory of 2488 4636 file.exe 79 PID 4636 wrote to memory of 2488 4636 file.exe 79 PID 4636 wrote to memory of 2488 4636 file.exe 79 PID 4636 wrote to memory of 2488 4636 file.exe 79 PID 4636 wrote to memory of 2488 4636 file.exe 79
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:2488
-