Analysis
- max time kernel
144s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
26/11/2024, 03:14
General
- Target b42f7b1685c9fa69b07eec4870ae1f573a48ad04c369e452482edbbfed654c24.exe
- Size 629KB
- Sample241126-drdktaxreq
- SHA256 b42f7b1685c9fa69b07eec4870ae1f573a48ad04c369e452482edbbfed654c24
Malware Config
Signatures
- Guloader family
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Loads dropped DLL 2 IoCs
- Drops file in System32 directory 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\b42f7b1685c9fa69b07eec4870ae1f573a48ad04c369e452482edbbfed654c24.exe"C:\Users\Admin\AppData\Local\Temp\b42f7b1685c9fa69b07eec4870ae1f573a48ad04c369e452482edbbfed654c24.exe"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\b42f7b1685c9fa69b07eec4870ae1f573a48ad04c369e452482edbbfed654c24.exe"C:\Users\Admin\AppData\Local\Temp\b42f7b1685c9fa69b07eec4870ae1f573a48ad04c369e452482edbbfed654c24.exe"2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
memory/3836-12-0x00000000028A0000-0x0000000004B52000-memory.dmp
memory/3836-16-0x0000000074A20000-0x0000000074A27000-memory.dmp
memory/3836-15-0x0000000074A25000-0x0000000074A26000-memory.dmp
memory/3836-14-0x0000000077581000-0x00000000776A1000-memory.dmp
memory/3836-13-0x00000000028A0000-0x0000000004B52000-memory.dmp
memory/3836-17-0x00000000028A0000-0x0000000004B52000-memory.dmp
memory/4428-18-0x00000000016F0000-0x00000000039A2000-memory.dmp
memory/4428-19-0x0000000000490000-0x00000000016E4000-memory.dmp
memory/4428-20-0x00000000016F0000-0x00000000039A2000-memory.dmp