Analysis
- max time kernel
22s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
17/09/2026, 18:12
General
- Target RFQ-945730101-B0000005023019.exe
- Size 372KB
- Sample260917-wtak2shd35
- SHA256 0ab6668c4bc57f654f1b09af524dd2313ecf7900f347e0c0b2d5b9f8e07eb6d6
Malware Config
Signatures
- Family: Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Loads dropped DLL 2 IoCs
- Contacts third-party web service commonly abused for C2 1 TTPs 3 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- Drops file in System32 directory 1 IoCs
- Drops file in Program Files directory 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 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes
-
C:\Users\Admin\AppData\Local\Temp\RFQ-945730101-B0000005023019.exe"C:\Users\Admin\AppData\Local\Temp\RFQ-945730101-B0000005023019.exe"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe"C:\Users\Admin\AppData\Local\Temp\RFQ-945730101-B0000005023019.exe"2⤵
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
System.dll
memory/2472-14-0x0000000004E70000-0x000000000592E000-memory.dmp
memory/2472-15-0x0000000004E70000-0x000000000592E000-memory.dmp
memory/2472-16-0x0000000010004000-0x0000000010005000-memory.dmp
memory/3648-17-0x0000000000B00000-0x00000000015BE000-memory.dmp
memory/3648-18-0x0000000077A98000-0x0000000077A99000-memory.dmp
memory/3648-21-0x0000000000400000-0x000000000062B000-memory.dmp
memory/3648-22-0x0000000000B00000-0x00000000015BE000-memory.dmp