Analysis
- max time kernel
128s - max time network
132s - platform
windows10-2004_x64 - resource
win10v2004-20230915-en - resource tags
- submitted
19/10/2023, 12:22
General
- Target 2d760f1c058c988471ce9503d8c6dbfbb83dba8206c49206a1e5a70eddfcb71e.exe
- Size 505KB
- Sample231019-pj63yahc98
- SHA256 2d760f1c058c988471ce9503d8c6dbfbb83dba8206c49206a1e5a70eddfcb71e
Malware Config
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Checks QEMU agent file 2 TTPs 2 IoCs
Checks presence of QEMU agent, possibly to detect virtualization.
- Loads dropped DLL 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 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).
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2d760f1c058c988471ce9503d8c6dbfbb83dba8206c49206a1e5a70eddfcb71e.exe"C:\Users\Admin\AppData\Local\Temp\2d760f1c058c988471ce9503d8c6dbfbb83dba8206c49206a1e5a70eddfcb71e.exe"1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe"C:\Users\Admin\AppData\Local\Temp\2d760f1c058c988471ce9503d8c6dbfbb83dba8206c49206a1e5a70eddfcb71e.exe"2⤵
- Checks QEMU agent file
- Suspicious use of NtSetInformationThreadHideFromDebugger
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
memory/1392-14-0x0000000001360000-0x0000000002F9F000-memory.dmp
memory/1392-15-0x0000000001360000-0x0000000002F9F000-memory.dmp
memory/1392-16-0x0000000077418000-0x0000000077419000-memory.dmp
memory/1392-17-0x0000000072AE0000-0x0000000073D34000-memory.dmp
memory/1392-18-0x0000000077391000-0x00000000774B1000-memory.dmp
memory/2808-9-0x0000000004A20000-0x000000000665F000-memory.dmp
memory/2808-10-0x0000000004A20000-0x000000000665F000-memory.dmp
memory/2808-11-0x0000000077391000-0x00000000774B1000-memory.dmp
memory/2808-12-0x0000000077391000-0x00000000774B1000-memory.dmp
memory/2808-13-0x0000000073FE0000-0x0000000073FE6000-memory.dmp