Analysis
- max time kernel
150s - max time network
127s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
05/04/2023, 01:27
Static task
static1
Behavioral task
behavioral1
Sample
b75d84de4614d5fcb84a8bb31d669b55.exe
Resource
win7-20230220-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
b75d84de4614d5fcb84a8bb31d669b55.exe
Resource
win10v2004-20230220-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target b75d84de4614d5fcb84a8bb31d669b55.exe
- Size 260KB
- Sample230405-bt375sbb48
- SHA256 2d1bbf9701cd4b8c06272453fdae23c03a12f6245a6ff1ed04fce8d82ff15d82
- MD5 b75d84de4614d5fcb84a8bb31d669b55
- SHA1 36b8254db0f20195a8fea70b765b5e4f5ce1fa95
- SHA512 2bc27b347719560b22db64d83fcd27a1edbf67f4230b3a71d1446cd72a059bbf85c5b2e06fcfd0e4d78c813e6c69f985643496616263765a68ff1c3d6aa03542
- SSDEEP 3072:lXgcJ9x5tGhbvawWFYyOamX/3IQ0egJwPzCqebmjmdICdTNx9VueJlqaJSNn:xTdGcSxamvYNJBqhjmd1dxTVueJsaW
- 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 4444 set thread context of 1164 4444 b75d84de4614d5fcb84a8bb31d669b55.exe 84 - Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI b75d84de4614d5fcb84a8bb31d669b55.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI b75d84de4614d5fcb84a8bb31d669b55.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI b75d84de4614d5fcb84a8bb31d669b55.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1164 b75d84de4614d5fcb84a8bb31d669b55.exe 1164 b75d84de4614d5fcb84a8bb31d669b55.exe 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found 936 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 936 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1164 b75d84de4614d5fcb84a8bb31d669b55.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4444 wrote to memory of 1164 4444 b75d84de4614d5fcb84a8bb31d669b55.exe 84 PID 4444 wrote to memory of 1164 4444 b75d84de4614d5fcb84a8bb31d669b55.exe 84 PID 4444 wrote to memory of 1164 4444 b75d84de4614d5fcb84a8bb31d669b55.exe 84 PID 4444 wrote to memory of 1164 4444 b75d84de4614d5fcb84a8bb31d669b55.exe 84 PID 4444 wrote to memory of 1164 4444 b75d84de4614d5fcb84a8bb31d669b55.exe 84 PID 4444 wrote to memory of 1164 4444 b75d84de4614d5fcb84a8bb31d669b55.exe 84 - 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\b75d84de4614d5fcb84a8bb31d669b55.exe"C:\Users\Admin\AppData\Local\Temp\b75d84de4614d5fcb84a8bb31d669b55.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4444 -
C:\Users\Admin\AppData\Local\Temp\b75d84de4614d5fcb84a8bb31d669b55.exe"C:\Users\Admin\AppData\Local\Temp\b75d84de4614d5fcb84a8bb31d669b55.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1164
-