Analysis
- max time kernel
135s - max time network
143s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
17/05/2024, 01:03
General
- Target 086da7bd75ae9d4bc710b5b00b0ec4f53b2d66d3cb623989c22ab603d6da2b31.exe
- Size 791KB
- Sample240517-bej6qaab5y
- SHA256 086da7bd75ae9d4bc710b5b00b0ec4f53b2d66d3cb623989c22ab603d6da2b31
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
- Drops file in System32 directory 1 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 1 IoCs
- Drops file in Windows directory 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\086da7bd75ae9d4bc710b5b00b0ec4f53b2d66d3cb623989c22ab603d6da2b31.exe"C:\Users\Admin\AppData\Local\Temp\086da7bd75ae9d4bc710b5b00b0ec4f53b2d66d3cb623989c22ab603d6da2b31.exe"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\086da7bd75ae9d4bc710b5b00b0ec4f53b2d66d3cb623989c22ab603d6da2b31.exe"C:\Users\Admin\AppData\Local\Temp\086da7bd75ae9d4bc710b5b00b0ec4f53b2d66d3cb623989c22ab603d6da2b31.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 892 -s 10763⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 892 -ip 8921⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
memory/892-39-0x0000000000400000-0x0000000001654000-memory.dmp
memory/892-38-0x0000000000400000-0x0000000001654000-memory.dmp
memory/892-42-0x0000000000400000-0x0000000001654000-memory.dmp
memory/892-43-0x0000000000401000-0x0000000000404000-memory.dmp
memory/892-17-0x0000000001660000-0x0000000002090000-memory.dmp
memory/892-41-0x0000000000400000-0x0000000001654000-memory.dmp
memory/892-19-0x0000000077588000-0x0000000077589000-memory.dmp
memory/892-20-0x00000000775A5000-0x00000000775A6000-memory.dmp
memory/892-40-0x0000000077501000-0x0000000077621000-memory.dmp
memory/892-36-0x0000000000401000-0x0000000000404000-memory.dmp
memory/892-16-0x0000000000400000-0x0000000001654000-memory.dmp
memory/892-34-0x0000000000400000-0x0000000001654000-memory.dmp
memory/892-37-0x0000000001660000-0x0000000002090000-memory.dmp
memory/892-33-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3404-13-0x0000000005380000-0x0000000005DB0000-memory.dmp
memory/3404-14-0x0000000077501000-0x0000000077621000-memory.dmp
memory/3404-18-0x0000000005380000-0x0000000005DB0000-memory.dmp
memory/3404-35-0x0000000005380000-0x0000000005DB0000-memory.dmp
memory/3404-15-0x0000000074154000-0x0000000074155000-memory.dmp