Analysis
- max time kernel
187s - max time network
203s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
11/02/2023, 22:10
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 197KB
- Sample230211-13ch8abc31
- SHA256 977623ed209d87edb95388be6c90802b62e73d62f8d6d293db230297ea5cd262
- MD5 f6de58820d62884ff008abf0ae9903d6
- SHA1 83c9f4dd0e0e5c9c2b8590e2f341f166dc615e39
- SHA512 5f1c6399ab3eb912095a58523e4906b067a708f3398f85621cf27a65e9686f1c017ca5a84d05a7215134cff622f288318f64b6c3fc21442bd0df0965749be31f
- SSDEEP 3072:fjqHA+0Jy7G5CY6Ea2ajmgBls2sbHJ8SoWrYtb7PI2GcWufGtG:fGgRKYRa2ajXq8SoW0tfPI2N9G
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/360-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3996-135-0x00000000024C0000-0x00000000024C9000-memory.dmp family_smokeloader behavioral2/memory/360-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/360-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3996 set thread context of 360 3996 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 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 - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 360 file.exe 360 file.exe 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2640 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 360 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3996 wrote to memory of 360 3996 file.exe 79 PID 3996 wrote to memory of 360 3996 file.exe 79 PID 3996 wrote to memory of 360 3996 file.exe 79 PID 3996 wrote to memory of 360 3996 file.exe 79 PID 3996 wrote to memory of 360 3996 file.exe 79 PID 3996 wrote to memory of 360 3996 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:3996 -
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:360
-