Analysis
- max time kernel
152s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
31/08/2022, 19:53
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
10 signatures
150 seconds
General
- Target file.exe
- Size 297KB
- Sample220831-ylyc9aahgp
- SHA256 d941fe1616bfe716742985ce3819fa3a445f455f1895c49b58a4a64860be0aa2
- MD5 3f3b07ff31b988311d1837ec577f34e5
- SHA1 2770a886fe06b2fcd7a6cace019c72c874811084
- SHA512 884c7b9936879aa61e21142f1e63997edfb90be705acdd0704ce2d3844bffee2d5d6272dc0a432d5ba10a500fda84e8a300ea3c7793ef9a673e5fd09b6311415
- SSDEEP 6144:y/hS5V7h/Ca9Ov5qJML34l4TqwhlrIxL/b/h4s2bT4D58xPCNbnT:SS5idv5qJMol4TqwhlrINh92b08xP
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/1604-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/5056-135-0x0000000000850000-0x0000000000859000-memory.dmp family_smokeloader behavioral2/memory/1604-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1604-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 5056 set thread context of 1604 5056 file.exe 84 - 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 1604 file.exe 1604 file.exe 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found 440 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 440 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1604 file.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeShutdownPrivilege 440 Process not Found Token: SeCreatePagefilePrivilege 440 Process not Found Token: SeShutdownPrivilege 440 Process not Found Token: SeCreatePagefilePrivilege 440 Process not Found - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 440 Process not Found 440 Process not Found - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 5056 wrote to memory of 1604 5056 file.exe 84 PID 5056 wrote to memory of 1604 5056 file.exe 84 PID 5056 wrote to memory of 1604 5056 file.exe 84 PID 5056 wrote to memory of 1604 5056 file.exe 84 PID 5056 wrote to memory of 1604 5056 file.exe 84 PID 5056 wrote to memory of 1604 5056 file.exe 84
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:5056 -
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:1604
-