Analysis
- max time kernel
150s - max time network
140s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
13/02/2023, 14:58
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target file.exe
- Size 193KB
- Sample230213-sb6c8add5s
- SHA256 081b9ffb61df7ddc4de60a1d387c757a5804cfd28663b57ca7db01e6f307f8a3
- MD5 c9751c9e8b33317fb5320cba9d2b5e13
- SHA1 edcbd64cca7ea857463db1d6d95d7e88a1b14280
- SHA512 02edd0261d67542f86b681a69a0aa4094778cd8cffa3ce14c19a4f0076e2780b2d4d39aa18e65430e4731cd294baaf1b61ccc99d93ffd448ab0160d3a2e0363f
- SSDEEP 3072:y6BNwpTDvjtC8uXaE8MkRV9ZyboVZQiqg+ivWF/y3C:yO4T/tFuXaEIV9RVZKgJ6h
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/3448-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1692-135-0x00000000006F0000-0x00000000006F9000-memory.dmp family_smokeloader behavioral2/memory/3448-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3448-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4292-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4292-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 2012 svsdebr 4292 svsdebr - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1692 set thread context of 3448 1692 file.exe 82 PID 2012 set thread context of 4292 2012 svsdebr 91 - Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI svsdebr 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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI svsdebr Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI svsdebr - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3448 file.exe 3448 file.exe 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found 2508 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2508 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 3448 file.exe 4292 svsdebr - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 2508 Process not Found Token: SeCreatePagefilePrivilege 2508 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1692 wrote to memory of 3448 1692 file.exe 82 PID 1692 wrote to memory of 3448 1692 file.exe 82 PID 1692 wrote to memory of 3448 1692 file.exe 82 PID 1692 wrote to memory of 3448 1692 file.exe 82 PID 1692 wrote to memory of 3448 1692 file.exe 82 PID 1692 wrote to memory of 3448 1692 file.exe 82 PID 2012 wrote to memory of 4292 2012 svsdebr 91 PID 2012 wrote to memory of 4292 2012 svsdebr 91 PID 2012 wrote to memory of 4292 2012 svsdebr 91 PID 2012 wrote to memory of 4292 2012 svsdebr 91 PID 2012 wrote to memory of 4292 2012 svsdebr 91 PID 2012 wrote to memory of 4292 2012 svsdebr 91
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:1692 -
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:3448
-
-
C:\Users\Admin\AppData\Roaming\svsdebrC:\Users\Admin\AppData\Roaming\svsdebr1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2012 -
C:\Users\Admin\AppData\Roaming\svsdebrC:\Users\Admin\AppData\Roaming\svsdebr2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:4292
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\svsdebr
- Size 193KB
- SHA256 081b9ffb61df7ddc4de60a1d387c757a5804cfd28663b57ca7db01e6f307f8a3
- MD5 c9751c9e8b33317fb5320cba9d2b5e13
- SHA1 edcbd64cca7ea857463db1d6d95d7e88a1b14280
- SHA512 02edd0261d67542f86b681a69a0aa4094778cd8cffa3ce14c19a4f0076e2780b2d4d39aa18e65430e4731cd294baaf1b61ccc99d93ffd448ab0160d3a2e0363f
- SSDEEP 3072:y6BNwpTDvjtC8uXaE8MkRV9ZyboVZQiqg+ivWF/y3C:yO4T/tFuXaEIV9RVZKgJ6h
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\svsdebr
- Size 193KB
- SHA256 081b9ffb61df7ddc4de60a1d387c757a5804cfd28663b57ca7db01e6f307f8a3
- MD5 c9751c9e8b33317fb5320cba9d2b5e13
- SHA1 edcbd64cca7ea857463db1d6d95d7e88a1b14280
- SHA512 02edd0261d67542f86b681a69a0aa4094778cd8cffa3ce14c19a4f0076e2780b2d4d39aa18e65430e4731cd294baaf1b61ccc99d93ffd448ab0160d3a2e0363f
- SSDEEP 3072:y6BNwpTDvjtC8uXaE8MkRV9ZyboVZQiqg+ivWF/y3C:yO4T/tFuXaEIV9RVZKgJ6h
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\svsdebr
- Size 193KB
- SHA256 081b9ffb61df7ddc4de60a1d387c757a5804cfd28663b57ca7db01e6f307f8a3
- MD5 c9751c9e8b33317fb5320cba9d2b5e13
- SHA1 edcbd64cca7ea857463db1d6d95d7e88a1b14280
- SHA512 02edd0261d67542f86b681a69a0aa4094778cd8cffa3ce14c19a4f0076e2780b2d4d39aa18e65430e4731cd294baaf1b61ccc99d93ffd448ab0160d3a2e0363f
- SSDEEP 3072:y6BNwpTDvjtC8uXaE8MkRV9ZyboVZQiqg+ivWF/y3C:yO4T/tFuXaEIV9RVZKgJ6h
- MD5 SHA1 SHA512 SSDEEP