Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
31/10/2024, 03:44
General
- Target ad1f6b68331f1d4b983df1eddfea197f4a091e648528dc28c6016524b51d58b0.exe
- Size 1.1MB
- Sample241031-eavcnsxpb1
- SHA256 ad1f6b68331f1d4b983df1eddfea197f4a091e648528dc28c6016524b51d58b0
Malware Config
Signatures
- Guloader family
- 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
- Drops file in Program Files directory 2 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 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\ad1f6b68331f1d4b983df1eddfea197f4a091e648528dc28c6016524b51d58b0.exe"C:\Users\Admin\AppData\Local\Temp\ad1f6b68331f1d4b983df1eddfea197f4a091e648528dc28c6016524b51d58b0.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\ad1f6b68331f1d4b983df1eddfea197f4a091e648528dc28c6016524b51d58b0.exe"C:\Users\Admin\AppData\Local\Temp\ad1f6b68331f1d4b983df1eddfea197f4a091e648528dc28c6016524b51d58b0.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
memory/2380-35-0x0000000001660000-0x00000000027FD000-memory.dmp
memory/2380-19-0x0000000000400000-0x0000000001654000-memory.dmp
memory/2380-20-0x0000000001660000-0x00000000027FD000-memory.dmp
memory/2380-21-0x0000000077878000-0x0000000077879000-memory.dmp
memory/2380-22-0x0000000077895000-0x0000000077896000-memory.dmp
memory/2380-36-0x0000000000400000-0x0000000001654000-memory.dmp
memory/2380-37-0x0000000000400000-0x0000000001654000-memory.dmp
memory/2380-38-0x00000000777F1000-0x0000000077911000-memory.dmp
memory/3276-16-0x00000000777F1000-0x0000000077911000-memory.dmp
memory/3276-17-0x0000000074445000-0x0000000074446000-memory.dmp
memory/3276-18-0x0000000004DB0000-0x0000000005F4D000-memory.dmp
memory/3276-15-0x0000000004DB0000-0x0000000005F4D000-memory.dmp