Analysis
- max time kernel
146s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
09/08/2024, 09:09
General
- Target sahost.exe
- Size 355KB
- Sample240809-k4qt8ssepg
- SHA256 e422323e3d0333b32a7dfbaf49befecd314d7e969d5848e71e07096ebc106604
Malware Config
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Loads dropped DLL 7 IoCs
- Drops file in System32 directory 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: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\sahost.exe"C:\Users\Admin\AppData\Local\Temp\sahost.exe"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- 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:\Program Files (x86)\windows mail\wab.exe"C:\Users\Admin\AppData\Local\Temp\sahost.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
LangDLL.dll
System.dll
memory/816-35-0x00000000049F0000-0x0000000005EC6000-memory.dmp
memory/816-32-0x0000000077571000-0x0000000077691000-memory.dmp
memory/816-33-0x00000000743D5000-0x00000000743D6000-memory.dmp
memory/816-31-0x00000000049F0000-0x0000000005EC6000-memory.dmp
memory/816-46-0x00000000049F0000-0x0000000005EC6000-memory.dmp
memory/4580-34-0x0000000001DB0000-0x0000000003286000-memory.dmp
memory/4580-36-0x00000000775F8000-0x00000000775F9000-memory.dmp
memory/4580-37-0x0000000077615000-0x0000000077616000-memory.dmp
memory/4580-38-0x0000000000B50000-0x0000000001DA4000-memory.dmp
memory/4580-39-0x0000000001DB0000-0x0000000003286000-memory.dmp
memory/4580-41-0x0000000077571000-0x0000000077691000-memory.dmp