Analysis
- max time kernel
150s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
15/03/2023, 11:44
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20230220-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20230220-en
9 signatures
150 seconds
General
- Target file.exe
- Size 309KB
- Sample230315-nv62msfa3z
- SHA256 aa5cfe1aca97f5d6871a6fcdca915dd5714fa593f2dd9a45500cec888d8fb8f3
- MD5 ff4b5ed7f4c5a419433c7ddf121bbddb
- SHA1 894bc168cd3231929493c62c7a14901500bce748
- SHA512 cf0f67ad6559d460032e4abfd69330fa17f4f04589eccc65832ed706cbb35e35bfa5adc271ddb250a4cb9370141a5eae4e2b84e4dc4d75db20382b8750482f76
- SSDEEP 3072:AGSY/H8LTn3JdSbcTlLlFWSxBGvywacWCKv6zGeKNlfHqjjJ:AY/cLjrVlLlQp6efzG51qPJ
- 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 4128 set thread context of 2288 4128 file.exe 88 - 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 2288 file.exe 2288 file.exe 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found 2172 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2172 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2288 file.exe - Suspicious use of AdjustPrivilegeToken 8 IoCs
description pid Process Token: SeShutdownPrivilege 2172 Process not Found Token: SeCreatePagefilePrivilege 2172 Process not Found Token: SeShutdownPrivilege 2172 Process not Found Token: SeCreatePagefilePrivilege 2172 Process not Found Token: SeShutdownPrivilege 2172 Process not Found Token: SeCreatePagefilePrivilege 2172 Process not Found Token: SeShutdownPrivilege 2172 Process not Found Token: SeCreatePagefilePrivilege 2172 Process not Found - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4128 wrote to memory of 2288 4128 file.exe 88 PID 4128 wrote to memory of 2288 4128 file.exe 88 PID 4128 wrote to memory of 2288 4128 file.exe 88 PID 4128 wrote to memory of 2288 4128 file.exe 88 PID 4128 wrote to memory of 2288 4128 file.exe 88 PID 4128 wrote to memory of 2288 4128 file.exe 88 - 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\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4128 -
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:2288
-