Analysis
- max time kernel
151s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
22/04/2023, 01:02
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 226KB
- Sample230422-bdtc1abd39
- SHA256 cf0c8fb5107e1050a82bceac1996d5e5e8ccbac9026996bbbb463b15075b61f0
- MD5 fdf52f22136ba739df08c52c94d81f1c
- SHA1 30c613fd4b59b6dd3df93eba626fb492ad286ae1
- SHA512 e222a42f5c22b8191cfeb9f87363b084e3480873780fcf55f26a21cd097820edc9c784b40d34aca6536dc5df88e4b8bf5ef3078aeadfb4e9654cd5e2f9435b17
- SSDEEP 3072:faN+y8bdCBl/sGa+OiA82t5vg2JUNXV45H/hELJF:yN+fdiPr5Al/g2JGo/hC
- 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 1656 set thread context of 4512 1656 setup.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 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 4512 setup.exe 4512 setup.exe 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found 3132 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3132 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4512 setup.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1656 wrote to memory of 4512 1656 setup.exe 81 PID 1656 wrote to memory of 4512 1656 setup.exe 81 PID 1656 wrote to memory of 4512 1656 setup.exe 81 PID 1656 wrote to memory of 4512 1656 setup.exe 81 PID 1656 wrote to memory of 4512 1656 setup.exe 81 PID 1656 wrote to memory of 4512 1656 setup.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\setup.exe"C:\Users\Admin\AppData\Local\Temp\setup.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1656 -
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:4512
-