Analysis
- max time kernel
150s - max time network
129s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
02/04/2023, 00:46
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 232KB
- Sample230402-a4nd1afa61
- SHA256 aec8b80ca4b56ac949515aebb55ebd384b18bf9371287948bc646bdafd12f2d5
- MD5 088bda258f8e982ab30a5bca2831af40
- SHA1 d18d650f6adf6833a1ffbcbbc9efbb7a15b0baf6
- SHA512 ad9240d2232aa0075f00170e691cbd6a7c1656f1312764d9e3c2ed36de3edf92bf2622a3d102711524360f68efebe678b46bd521db40bcdb6820a473cbd93473
- SSDEEP 3072:UbDQAh2J/mz8TbIN96A2FF6J+fVE/3XGFibh4wFknuaVNYKp+xQHca:IAJeoTbIYtzREVQ
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
smokeloader
Botnet
-
pub2
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 5076 set thread context of 1040 5076 setup.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 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 1040 setup.exe 1040 setup.exe 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 660 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1040 setup.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 5076 wrote to memory of 1040 5076 setup.exe 82 PID 5076 wrote to memory of 1040 5076 setup.exe 82 PID 5076 wrote to memory of 1040 5076 setup.exe 82 PID 5076 wrote to memory of 1040 5076 setup.exe 82 PID 5076 wrote to memory of 1040 5076 setup.exe 82 PID 5076 wrote to memory of 1040 5076 setup.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\setup.exe"C:\Users\Admin\AppData\Local\Temp\setup.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5076 -
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:1040
-