Analysis
- max time kernel
150s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
15/12/2022, 18:35
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 328KB
- Sample221215-w8brnada68
- SHA256 9a50c29c2c17b52dfaa79b540f45f83ba35b7db60203d4318bf4bb98cc905136
- MD5 65f3180ed4e073535aca460d9eabd939
- SHA1 194b310d6685d879c8ac4948d74d2ae9b5f3e76f
- SHA512 c499cf85998a72d4b6b1d3b7345f858ec4a3248548a8ed90d26bfc98198a9f6a57c821a41ae84554b228cf748d4ca0aaa19160d65542cba5f5acbc4fa3ae2a21
- SSDEEP 6144:1Y67L2WvXpRaB1xPnH883bA2/z0isvzpQ6ijLxQFiaI+:vCWRRaBXnHBAexqzpQ6ijqF
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/736-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2424-135-0x00000000005B0000-0x00000000005B9000-memory.dmp family_smokeloader behavioral2/memory/736-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/736-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2424 set thread context of 736 2424 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 736 file.exe 736 file.exe 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2724 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 736 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2424 wrote to memory of 736 2424 file.exe 80 PID 2424 wrote to memory of 736 2424 file.exe 80 PID 2424 wrote to memory of 736 2424 file.exe 80 PID 2424 wrote to memory of 736 2424 file.exe 80 PID 2424 wrote to memory of 736 2424 file.exe 80 PID 2424 wrote to memory of 736 2424 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:2424 -
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:736
-