Analysis
- max time kernel
150s - max time network
130s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system - submitted
03/01/2023, 01:30
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
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 186KB
- Sample230103-bwxhdahc23
- SHA256 1e3d458e7ef866069259cb3b13b761e46f6278c3fca69ca846baca650b4e0f72
- MD5 837d16702cc883fb77b4b6e141c4d0c2
- SHA1 c658b2ff82935fa6aebb4398dd67137b57943cd4
- SHA512 571e5428a4beb59b07c7ef20d8a894f4587a0bc98c7351e6393cec89831ce6c2d3842b60c62273e40291d0049aeb8989c0b448e8e71b96982dedd24915343c83
- SSDEEP 3072:YHV4LGesNwN+5x1HW8Kt2yI8pXvwFfU3ZhnU5q:vLSNwYXZ8dvwxUrnU5
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/1440-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/5016-135-0x00000000005A0000-0x00000000005A9000-memory.dmp family_smokeloader behavioral2/memory/1440-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1440-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 5016 set thread context of 1440 5016 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 1440 file.exe 1440 file.exe 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3048 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1440 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 5016 wrote to memory of 1440 5016 file.exe 81 PID 5016 wrote to memory of 1440 5016 file.exe 81 PID 5016 wrote to memory of 1440 5016 file.exe 81 PID 5016 wrote to memory of 1440 5016 file.exe 81 PID 5016 wrote to memory of 1440 5016 file.exe 81 PID 5016 wrote to memory of 1440 5016 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:5016 -
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:1440
-