Analysis
- max time kernel
150s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
28/12/2022, 04:27
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
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 230KB
- Sample221228-e24enacd9y
- SHA256 d02fce287b406f117c0ace4a2137f949173a02c994de09f0ce9528009e5b74fb
- MD5 d6a9a917d20f48903ee8d2983217eb1c
- SHA1 cc82b80ea871b0087ab9a5f2b152045d8622e4dd
- SHA512 b34dd9407ac3191580f5049d249c26acf86c96628af146eb55c3057a685932769378ae44a93bc5b0edd4c3629ba98ef6a528212aa5b9a9cf79c42e8c7f069171
- SSDEEP 3072:5L6244QLgxax5I0f1Wq/rUZAh0jSyS2sOJRSMqgrIlPtYKs/xAI9y:y4QLg4E2QqDUZAh0pS25tI1YDZ
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 5 IoCs
resource yara_rule behavioral2/memory/4232-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4232-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4564-135-0x00000000005B0000-0x00000000005B9000-memory.dmp family_smokeloader behavioral2/memory/4232-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4232-138-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4564 set thread context of 4232 4564 file.exe 83 - 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 4232 file.exe 4232 file.exe 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found 2732 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2732 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4232 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4564 wrote to memory of 4232 4564 file.exe 83 PID 4564 wrote to memory of 4232 4564 file.exe 83 PID 4564 wrote to memory of 4232 4564 file.exe 83 PID 4564 wrote to memory of 4232 4564 file.exe 83 PID 4564 wrote to memory of 4232 4564 file.exe 83 PID 4564 wrote to memory of 4232 4564 file.exe 83
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:4564 -
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:4232
-