Analysis
- max time kernel
154s - max time network
129s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
01/04/2023, 01:25
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 217KB
- Sample230401-bsyw2afa48
- SHA256 abbf99f9a1827660194f02485a1d1e9fd7f4eecff8021c7c56d4e8e2619e1061
- MD5 02abb21888be25dd60807492d9db52e5
- SHA1 c105036d7e6f25a4827e5ac40a68ca904b2eedf9
- SHA512 be14647bfce46a3fb374b0905d3578fcb8d908c7f241e1474ddd0130a79b8a60b49fb19f24959ea4ba97f735bf21492aef20dbf0cc4df95de49b96ecbeeb6c37
- SSDEEP 3072:ZLNyFFKsI1N32s7kFjVkJN5q6lpq22NHK2bj5gPI9+tQk/ii:X+K7GdRVYNFlWNq26PI9+tQkKi
- 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 1668 set thread context of 1736 1668 setup.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 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 1736 setup.exe 1736 setup.exe 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found 2780 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2780 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1736 setup.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1668 wrote to memory of 1736 1668 setup.exe 83 PID 1668 wrote to memory of 1736 1668 setup.exe 83 PID 1668 wrote to memory of 1736 1668 setup.exe 83 PID 1668 wrote to memory of 1736 1668 setup.exe 83 PID 1668 wrote to memory of 1736 1668 setup.exe 83 PID 1668 wrote to memory of 1736 1668 setup.exe 83 - 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:1668 -
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:1736
-