Analysis
- max time kernel
56s - max time network
53s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
12/02/2024, 12:43
General
- Target MDU9342434.exe
- Size 1.1MB
- Sample240212-pyay2sdd5z
- SHA256 cbfc10741fb440a5c351bb62a9ffbe13d8fb90304925bee56ac6dd54a8e001ac
Malware Config
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Loads dropped DLL 1 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
- Drops file in System32 directory 2 IoCs
- Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Program Files directory 1 IoCs
- Drops file in Windows directory 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\MDU9342434.exe"C:\Users\Admin\AppData\Local\Temp\MDU9342434.exe"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Program Files (x86)\windows mail\wab.exe"C:\Users\Admin\AppData\Local\Temp\MDU9342434.exe"2⤵
- Adds Run key to start application
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
System.dll
memory/1608-19-0x00000000054C0000-0x0000000007D0D000-memory.dmp
memory/1608-20-0x0000000077061000-0x0000000077181000-memory.dmp
memory/1608-21-0x00000000054C0000-0x0000000007D0D000-memory.dmp
memory/1608-22-0x0000000010000000-0x0000000010006000-memory.dmp
memory/3956-23-0x0000000002460000-0x0000000004CAD000-memory.dmp
memory/3956-24-0x00000000770E8000-0x00000000770E9000-memory.dmp
memory/3956-25-0x0000000077061000-0x0000000077181000-memory.dmp
memory/3956-39-0x0000000002460000-0x0000000004CAD000-memory.dmp
memory/3956-40-0x0000000077061000-0x0000000077181000-memory.dmp
memory/3956-43-0x0000000001200000-0x0000000002454000-memory.dmp
memory/3956-42-0x0000000002460000-0x0000000004CAD000-memory.dmp
memory/3956-44-0x0000000001200000-0x0000000002454000-memory.dmp