Analysis
- max time kernel
153s - max time network
157s - 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, 01:30
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 259KB
- Sample230401-bwt29afa69
- SHA256 ff00e0c288012862ba485bffd216e52b4d4e0627c207d429f7bc4e4343dc6df8
- MD5 e92395871eaaf64fa9a5c1fa8aa2d022
- SHA1 1ef50733fb7cd13df8b8cc821528ae177149d9ff
- SHA512 61bc198ec2c413b28698090437f78b687455144881c7844bdaa2d0df3f222e419b8ec5c09408a4c87afc9147f4b9858e9faefac58518fdc7054a45b8b544b184
- SSDEEP 3072:vKyq8qW66dR8pElP6kaRL/4ty097ZD3KFcwdxTrdW5cRsPt:C38j16n9A57ZDyh5hRSt
- 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 4520 set thread context of 2992 4520 setup.exe 87 - 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 2992 setup.exe 2992 setup.exe 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found 3172 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3172 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2992 setup.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4520 wrote to memory of 2992 4520 setup.exe 87 PID 4520 wrote to memory of 2992 4520 setup.exe 87 PID 4520 wrote to memory of 2992 4520 setup.exe 87 PID 4520 wrote to memory of 2992 4520 setup.exe 87 PID 4520 wrote to memory of 2992 4520 setup.exe 87 PID 4520 wrote to memory of 2992 4520 setup.exe 87 - 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:4520 -
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:2992
-