Analysis
- max time kernel
150s - max time network
104s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
17/03/2023, 13:45
Static task
static1
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
10 signatures
150 seconds
General
- Target file.exe
- Size 295KB
- Sample230317-q2ebbage44
- SHA256 91752dfafeac37df2e377425006fb53dc65ea27109c6e841b5412b58263be2df
- MD5 88c9c74f227ab2c4338c33efbb177c80
- SHA1 2274b54cedb4957e3e98b743cf6a7eb04d7514f4
- SHA512 55f8797c9aacd6ddc9f2549cbfbf76b1fc5a763651bc84b78156d4a7fcf4917dedbade334ef49cfb770243eb749249af9353dca19e9bb49ae571808879462381
- SSDEEP 3072:rSUPwyLz6WBVgPlr6MZCF2PSXMsU/mFeV6LWYiI3HM3z:euwyLzjBVg9rpSXMsmmFeVFj
- 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 4324 set thread context of 4092 4324 file.exe 81 - 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 - Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Process not Found Key created \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4092 file.exe 4092 file.exe 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found 692 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 692 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4092 file.exe - Suspicious use of AdjustPrivilegeToken 16 IoCs
description pid Process Token: SeShutdownPrivilege 692 Process not Found Token: SeCreatePagefilePrivilege 692 Process not Found Token: SeShutdownPrivilege 692 Process not Found Token: SeCreatePagefilePrivilege 692 Process not Found Token: SeShutdownPrivilege 692 Process not Found Token: SeCreatePagefilePrivilege 692 Process not Found Token: SeShutdownPrivilege 692 Process not Found Token: SeCreatePagefilePrivilege 692 Process not Found Token: SeShutdownPrivilege 692 Process not Found Token: SeCreatePagefilePrivilege 692 Process not Found Token: SeShutdownPrivilege 692 Process not Found Token: SeCreatePagefilePrivilege 692 Process not Found Token: SeShutdownPrivilege 692 Process not Found Token: SeCreatePagefilePrivilege 692 Process not Found Token: SeShutdownPrivilege 692 Process not Found Token: SeCreatePagefilePrivilege 692 Process not Found - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4324 wrote to memory of 4092 4324 file.exe 81 PID 4324 wrote to memory of 4092 4324 file.exe 81 PID 4324 wrote to memory of 4092 4324 file.exe 81 PID 4324 wrote to memory of 4092 4324 file.exe 81 PID 4324 wrote to memory of 4092 4324 file.exe 81 PID 4324 wrote to memory of 4092 4324 file.exe 81 - 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:4324 -
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:4092
-