Analysis
- max time kernel
150s - max time network
126s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
21/03/2023, 01:31
Static task
static1
Behavioral task
behavioral1
Sample
setup.exe
Resource
win7-20230220-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
setup.exe
Resource
win10v2004-20230220-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target setup.exe
- Size 180KB
- Sample230321-bxd3esab9w
- SHA256 29b8656da62ec521d4d578284483ce143119520ec6b7fec40b5ca82d3eaa564e
- MD5 2894a3487ada14cc6395f03e99feac86
- SHA1 43254e9b5fcb930fbdcf324510de230b0e457e25
- SHA512 be6081463507bef8e33b8b8ff624fc161c6f96950c49e6d87880dc8cc0fe500f07243a2869a7423d360b25ae9723ae8c8846da824b3ee43b1d8a22c7dcb4e810
- SSDEEP 3072:gqi32G+I0cozc+pRSv1gnKpvJXjW3JMUIYaBlZZZ:a32hTxRzQSJTNGZ
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
smokeloader
Botnet
-
lab
Extracted
Family
-
smokeloader
Version
-
2020
C2
-
http://host-file-host6.com/
-
http://host-host-file8.com/
rc4.i32
rc4.i32
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2244 set thread context of 2516 2244 setup.exe 86 - 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 setup.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI setup.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI setup.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2516 setup.exe 2516 setup.exe 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found 3112 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3112 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2516 setup.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2244 wrote to memory of 2516 2244 setup.exe 86 PID 2244 wrote to memory of 2516 2244 setup.exe 86 PID 2244 wrote to memory of 2516 2244 setup.exe 86 PID 2244 wrote to memory of 2516 2244 setup.exe 86 PID 2244 wrote to memory of 2516 2244 setup.exe 86 PID 2244 wrote to memory of 2516 2244 setup.exe 86 - Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\setup.exe"C:\Users\Admin\AppData\Local\Temp\setup.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2244 -
C:\Users\Admin\AppData\Local\Temp\setup.exe"C:\Users\Admin\AppData\Local\Temp\setup.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2516
-