Analysis
- max time kernel
150s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
02/06/2023, 01:04
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20230220-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20230220-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 234KB
- Sample230602-bex3kshb95
- SHA256 ec966fb9a431938c200f620cc5366bbbeed1919d4650ccb1b29b79b3862f3b43
- MD5 ae00d115ff7257a976abe13c6fb2010a
- SHA1 7ec339a4457bf7b42ae4844bb2fa237f730b1d0a
- SHA512 995a12503fa0a4ecb3a780c9cc80f80763e74e1e288c206f45316251cef02dc6fdd61393c73c8b000392199171cf6c6e7d32dc9b126b30e7a7e0f5664315133d
- SSDEEP 3072:lXjU/t0GwZzeWVsAxzqslspnvaFgwW9lFgXPWpye5TST:husV/xzqsknv8W9LtygS
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
smokeloader
Botnet
-
pub1
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 2192 set thread context of 2380 2192 file.exe 82 - 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 2380 file.exe 2380 file.exe 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found 2600 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2600 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2380 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2192 wrote to memory of 2380 2192 file.exe 82 PID 2192 wrote to memory of 2380 2192 file.exe 82 PID 2192 wrote to memory of 2380 2192 file.exe 82 PID 2192 wrote to memory of 2380 2192 file.exe 82 PID 2192 wrote to memory of 2380 2192 file.exe 82 PID 2192 wrote to memory of 2380 2192 file.exe 82 - 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:2192 -
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:2380
-