Analysis
- max time kernel
150s - max time network
128s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
22/03/2023, 00:57
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 320KB
- Sample230322-bax7sadh93
- SHA256 23488255342c1cb2d2b0c3abf96df717e4e6403768c36f2c9c44fc9cb70fee1b
- MD5 dad11829d5dc7eaaffba76a0cec749c2
- SHA1 57abf55a6811571e654054c01a0cc945fe095016
- SHA512 f2ad22de37a3647ce9b9cc45a34c9691b4ebf9dbbfc01938aab4b54c0d54ae96c2dcd93e3d0515d1cb487197d7408b1431bc464f2d7f0b58edcf749aa9bf4529
- SSDEEP 6144:2rWKL+VhtCq4amGGGGG+pqKPcTZI94WvlQ:2rWKiXtCq4fOTZBWK
- 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 4332 set thread context of 3832 4332 setup.exe 84 - 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 3832 setup.exe 3832 setup.exe 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found 3156 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3156 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3832 setup.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4332 wrote to memory of 3832 4332 setup.exe 84 PID 4332 wrote to memory of 3832 4332 setup.exe 84 PID 4332 wrote to memory of 3832 4332 setup.exe 84 PID 4332 wrote to memory of 3832 4332 setup.exe 84 PID 4332 wrote to memory of 3832 4332 setup.exe 84 PID 4332 wrote to memory of 3832 4332 setup.exe 84 - 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:4332 -
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:3832
-