Analysis
- max time kernel
150s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
07/01/2023, 02:05
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
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 300KB
- Sample230107-chvbjace48
- SHA256 fe494fd1eb6a89b0bcbe69e591ef23cf4a6fecf93c1825a3c548837a92060a75
- MD5 9e488fef6aabc325e078217326cc61e2
- SHA1 eaff36de8e2bceef56e9232d067f543fa66dbe1c
- SHA512 f45e111ab78e55318c5e232091bfe7bd5a6544e383a421ec9b450d47fc9b762c56e3342fd161d25058270e9eaee60bc515d5782cc4822b89d071466d8e9da098
- SSDEEP 6144:HvLhYychejQMvWbbv3Enx8Yf+uHCeI280BJ:HvFYycq58Yf+BS
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4644-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3968-135-0x0000000002CB0000-0x0000000002CB9000-memory.dmp family_smokeloader behavioral2/memory/4644-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4644-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3968 set thread context of 4644 3968 file.exe 80 - 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 4644 file.exe 4644 file.exe 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found 2832 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2832 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4644 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3968 wrote to memory of 4644 3968 file.exe 80 PID 3968 wrote to memory of 4644 3968 file.exe 80 PID 3968 wrote to memory of 4644 3968 file.exe 80 PID 3968 wrote to memory of 4644 3968 file.exe 80 PID 3968 wrote to memory of 4644 3968 file.exe 80 PID 3968 wrote to memory of 4644 3968 file.exe 80
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:3968 -
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:4644
-