Analysis
- max time kernel
150s - max time network
124s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system - submitted
01/01/2023, 09:32
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 239KB
- Sample230101-lhl5laef4s
- SHA256 5c6e9402f58b75a3076d55bab611bc8035859cc8dabdb652a68cbacf50083766
- MD5 00b95d4554219e704a7304b1af290780
- SHA1 606d0e8e1830ba03873d2a7e55f9862f8320d898
- SHA512 09938918e13ac2fb8410812e7dd40f2dd490800c11c7d53ace1c626be0b37ff4cf698d4fb9ac27fb3956844e095da0907888f676b591c4eb928463fb87e17037
- SSDEEP 3072:3X8myyLYn+t+wazB5QhSsdqPzifYkVlmqj27hZY:n7LawcMhvqeqLZY
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/796-133-0x00000000006F0000-0x00000000006F9000-memory.dmp family_smokeloader behavioral2/memory/4000-135-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4000-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4000-138-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 796 set thread context of 4000 796 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 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 4000 file.exe 4000 file.exe 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found 652 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 652 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4000 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 796 wrote to memory of 4000 796 file.exe 81 PID 796 wrote to memory of 4000 796 file.exe 81 PID 796 wrote to memory of 4000 796 file.exe 81 PID 796 wrote to memory of 4000 796 file.exe 81 PID 796 wrote to memory of 4000 796 file.exe 81 PID 796 wrote to memory of 4000 796 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:796 -
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:4000
-