Analysis
- max time kernel
162s - max time network
134s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
06/01/2023, 16:24
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
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 313KB
- Sample230106-twddlshb69
- SHA256 9e2a0ed056c1de88034a1c01cae324f6ae2d11a94bcced698fe80fa9f4b2bc89
- MD5 9b14d19542d0e702a5a2d3f834435dd9
- SHA1 a9e89775205498021d44062c949df660637a670f
- SHA512 3f1045c0f8f210edd0117c641afde00f7c12d66a0466c0795894480430dd658108d6f1aafd03a55b38b3f97dfd4b5b40dd0ea47317f2d63aa303dd5f763150a3
- SSDEEP 3072:/CX80TYL0ixgeXK5mK6JUsWMQ7xxPX6FY1kzOyxG5tLtdPOK5twsco56PwVCaSzd:qxUL0ZeHK6JUsObN1kQdWKQA6Qo
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/540-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3536-135-0x0000000002D80000-0x0000000002D89000-memory.dmp family_smokeloader behavioral2/memory/540-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/540-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3536 set thread context of 540 3536 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 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 540 file.exe 540 file.exe 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found 724 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 724 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 540 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3536 wrote to memory of 540 3536 file.exe 80 PID 3536 wrote to memory of 540 3536 file.exe 80 PID 3536 wrote to memory of 540 3536 file.exe 80 PID 3536 wrote to memory of 540 3536 file.exe 80 PID 3536 wrote to memory of 540 3536 file.exe 80 PID 3536 wrote to memory of 540 3536 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:3536 -
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:540
-