Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
27/08/2022, 10:13
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 131KB
- Sample220827-l83j9saed7
- SHA256 61e79ef0d82801ff988f19bbb50d8b9da99e12d86ad16f2ebfdd8a34f38583b1
- MD5 712ea118568e036d884f2586596bbea5
- SHA1 a0a6232b14730a5fd3fc6a6227785032de2a7a7a
- SHA512 4b1dbf48e902f11da34f476783465efbfbc4fa2a883f0e236c1552293bd0bd7183e301cc6e735c7a4d1779dabb1404c37a84636d9af7231ac3c56395f576d6a6
- SSDEEP 3072:JjrXUajFQ7cQyFYhVDYoNehNSwQDxrNbsMMiuJIx/ZNlq:ZXjjFQ7cQXl1cmw2Po1FiHj
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4824-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2584-135-0x0000000000510000-0x0000000000519000-memory.dmp family_smokeloader behavioral2/memory/4824-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4824-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2584 set thread context of 4824 2584 file.exe 82 - 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 4824 file.exe 4824 file.exe 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found 2492 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2492 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4824 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2584 wrote to memory of 4824 2584 file.exe 82 PID 2584 wrote to memory of 4824 2584 file.exe 82 PID 2584 wrote to memory of 4824 2584 file.exe 82 PID 2584 wrote to memory of 4824 2584 file.exe 82 PID 2584 wrote to memory of 4824 2584 file.exe 82 PID 2584 wrote to memory of 4824 2584 file.exe 82
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:2584 -
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:4824
-