Analysis
- max time kernel
150s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
21/12/2022, 01:02
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
8 signatures
150 seconds
General
- Target file.exe
- Size 221KB
- Sample221221-bdsfpsee4x
- SHA256 d6cd726c7bfa4bdca0473424fda9e9c2924f9d417c9f49cf8406ea8741904025
- MD5 684e48e24c2f4a941bb2f24f08cd49e6
- SHA1 a2921b5aebfb6c1f3115bcc4a9e819fc046e1415
- SHA512 ce729d7d36fed05c0dc588ff50804d63e605dd441011ab5ccf7ea7e89bfb2cfde7e3963d8532cfa5d2100846842f9cd98b1f9222708f024e07ddcd0488f2500d
- SSDEEP 3072:HOX9LKnY115plm+4vzaOzx0alA9mQ5MRe7EbkOSy7b/T55W0gNHCDml:uNLwYXlm+6aONLlAGAYRlKCa
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/908-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4776-135-0x00000000001F0000-0x00000000001F9000-memory.dmp family_smokeloader behavioral2/memory/908-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/908-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4776 set thread context of 908 4776 file.exe 81 - 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 908 file.exe 908 file.exe 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2752 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 908 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4776 wrote to memory of 908 4776 file.exe 81 PID 4776 wrote to memory of 908 4776 file.exe 81 PID 4776 wrote to memory of 908 4776 file.exe 81 PID 4776 wrote to memory of 908 4776 file.exe 81 PID 4776 wrote to memory of 908 4776 file.exe 81 PID 4776 wrote to memory of 908 4776 file.exe 81
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:4776 -
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:908
-