Analysis
- max time kernel
148s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
08/11/2024, 03:48
General
- Target ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe
- Size 717KB
- Sample241108-ec7qsaxmcp
- SHA256 ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66
Malware Config
Signatures
- Guloader family
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Loads dropped DLL 2 IoCs
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
- Suspicious use of NtCreateThreadExHideFromDebugger 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).
- Program crash 1 IoCs
- 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: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe"C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe"1⤵
- Loads dropped DLL
- 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\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe"C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3788 -s 10683⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3788 -ip 37881⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
memory/1120-20-0x00000000031A0000-0x000000000591F000-memory.dmp
memory/1120-14-0x00000000031A0000-0x000000000591F000-memory.dmp
memory/1120-15-0x00000000031A0000-0x000000000591F000-memory.dmp
memory/1120-16-0x0000000077221000-0x0000000077341000-memory.dmp
memory/1120-18-0x00000000746C5000-0x00000000746C6000-memory.dmp
memory/1120-17-0x0000000077221000-0x0000000077341000-memory.dmp
memory/3788-19-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3788-21-0x0000000001660000-0x0000000003DDF000-memory.dmp
memory/3788-34-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3788-35-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3788-36-0x0000000001660000-0x0000000003DDF000-memory.dmp
memory/3788-37-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3788-38-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3788-39-0x0000000001660000-0x0000000003DDF000-memory.dmp