Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
28/12/2022, 03:46
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 230KB
- Sample221228-ebmn8acd6t
- SHA256 3fcc1c73374a24575a62aae4a42befd9150bbfc34c5b9fbbfd15cdcc3af93347
- MD5 7028a5ec09d6327af636dc9f028029e6
- SHA1 b1d58953da963f5b1cd7d26a53927ac1efc4ff91
- SHA512 6ad3ff0a93c14ef06500c44e790aea2d476f73812de5fb9e38c8d2e188fb8a26bc435cba7154fe9ef754d95d237b8dc8de5daa365aee5e914c453e0c0ec4f61a
- SSDEEP 3072:RHsj50L2WgF57MM4Gi+sVwqEGNk4joiTm1FODBoySM740i6cPtYKs/xAI9y:U0L2PjMMZUVwFSJTmqWu7Ni6c1YDZ
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/1436-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4368-135-0x00000000006F0000-0x00000000006F9000-memory.dmp family_smokeloader behavioral2/memory/1436-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1436-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4368 set thread context of 1436 4368 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 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 1436 file.exe 1436 file.exe 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3076 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1436 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4368 wrote to memory of 1436 4368 file.exe 80 PID 4368 wrote to memory of 1436 4368 file.exe 80 PID 4368 wrote to memory of 1436 4368 file.exe 80 PID 4368 wrote to memory of 1436 4368 file.exe 80 PID 4368 wrote to memory of 1436 4368 file.exe 80 PID 4368 wrote to memory of 1436 4368 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:4368 -
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:1436
-