Analysis
- max time kernel
95s - max time network
205s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
03/10/2024, 15:31
General
- Target NUEVO PEDIDO REQ-05420.exe
- Size 570KB
- Sample241003-syetsaserj
- SHA256 e0fb6d00a3928034e1f0e478926cb9356a55ba8d57b25dcbd92eb68ece4b2443
Malware Config
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Loads dropped DLL 1 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).
- 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 14 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\NUEVO PEDIDO REQ-05420.exe"C:\Users\Admin\AppData\Local\Temp\NUEVO PEDIDO REQ-05420.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\NUEVO PEDIDO REQ-05420.exe"C:\Users\Admin\AppData\Local\Temp\NUEVO PEDIDO REQ-05420.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
Gaulin.ini
memory/3848-300-0x0000000077C21000-0x0000000077D41000-memory.dmp
memory/3848-297-0x0000000001660000-0x00000000037FA000-memory.dmp
memory/3848-305-0x0000000001660000-0x00000000037FA000-memory.dmp
memory/3848-304-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3848-282-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3848-283-0x0000000001660000-0x00000000037FA000-memory.dmp
memory/3848-296-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3848-301-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3848-298-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4908-299-0x0000000003060000-0x00000000051FA000-memory.dmp
memory/4908-278-0x0000000003060000-0x00000000051FA000-memory.dmp
memory/4908-279-0x0000000003060000-0x00000000051FA000-memory.dmp
memory/4908-281-0x0000000010004000-0x0000000010005000-memory.dmp
memory/4908-280-0x0000000077C21000-0x0000000077D41000-memory.dmp