Analysis
- max time kernel
150s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system - submitted
20/09/2022, 00:04
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
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 146KB
- Sample220920-acmcmafcej
- SHA256 3e3faab7213386cdb63663ddad9856c1cb0ddd39865e7f0381dbcf927ca456cc
- MD5 3fb60d7763471f34169a733ddfe6bc21
- SHA1 9990ad63e7b7ac22ad696fa9dc65f0536efdc528
- SHA512 717c5a1423f3f0bd010fc0b66b8260dae7ff5da1e6c3d03879b887c83a073058b3daf7842e83190b470e255d81339a2e9b3c1d115ea5525f6ab271684742e3b4
- SSDEEP 3072:HoEaL38No549dPcqTDnkYxJwXQ7TaW0sahRFh/vkgBmkdM5J/ZCkjx:MLMN59dUqHlJR3a3FhR3/aUk
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/3744-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4656-138-0x00000000006D0000-0x00000000006D9000-memory.dmp family_smokeloader behavioral2/memory/3744-139-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3744-140-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4656 set thread context of 3744 4656 file.exe 85 - 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 3744 file.exe 3744 file.exe 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found 3068 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3068 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3744 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4656 wrote to memory of 3744 4656 file.exe 85 PID 4656 wrote to memory of 3744 4656 file.exe 85 PID 4656 wrote to memory of 3744 4656 file.exe 85 PID 4656 wrote to memory of 3744 4656 file.exe 85 PID 4656 wrote to memory of 3744 4656 file.exe 85 PID 4656 wrote to memory of 3744 4656 file.exe 85
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:4656 -
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:3744
-