Analysis
- max time kernel
150s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
04/06/2024, 03:06
General
- Target 8f8b3d31556992f736cb747ce3ccb669.exe
- Size 44KB
- Sample240604-dl2epabb2t
- SHA256 50a20696c8baa53210cea5dfd671cb4838fb594ca62d0e893bfac1dc2fa8e8b9
Score
10/10
Malware Config
Extracted
Family
-
guloader
C2
-
http://altoinfor.co/files/bin_encrypted_4C627F0.bin
xor.base64
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\8f8b3d31556992f736cb747ce3ccb669.exe"C:\Users\Admin\AppData\Local\Temp\8f8b3d31556992f736cb747ce3ccb669.exe"1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\8f8b3d31556992f736cb747ce3ccb669.exe"C:\Users\Admin\AppData\Local\Temp\8f8b3d31556992f736cb747ce3ccb669.exe"2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
-
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
memory/2120-3-0x0000000000400000-0x00000000004E7000-memory.dmp
memory/2120-7-0x00000000775E1000-0x0000000077701000-memory.dmp
memory/2120-6-0x00000000004F0000-0x00000000005F0000-memory.dmp
memory/2560-2-0x0000000002230000-0x0000000002238000-memory.dmp
memory/2560-5-0x00000000775E1000-0x0000000077701000-memory.dmp