Analysis
- max time kernel
149s - max time network
130s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
22/08/2026, 12:51
General
- Target 新建文件夹/splwow64.exe
- Size 1.1MB
- Sample260822-p3qkasvbkf
- SHA256 f06076f9316264bd38fc71ab256553ab48b3583d900d899326a71c1565134dcf
Malware Config
Extracted
-
xred
-
xred.mooo.com
-
payload_url
http://freedns.afraid.org/api/?action=getdyndns&sha=a30fa98efc092684e8d1c5cff797bcc613562978
https://docs.google.com/uc?id=0BxsMXGfPIZfSVlVsOGlEVGxuZVk&export=download
https://www.dropbox.com/s/n1w4p8gc6jzo0sg/SUpdate.ini?dl=1
http://xred.site50.net/syn/SUpdate.ini
https://docs.google.com/uc?id=0BxsMXGfPIZfSVzUyaHFYVkQxeFk&export=download
https://www.dropbox.com/s/zhp1b06imehwylq/Synaptics.rar?dl=1
http://xred.site50.net/syn/Synaptics.rar
https://docs.google.com/uc?id=0BxsMXGfPIZfSTmlVYkxhSDg5TzQ&export=download
https://www.dropbox.com/s/fzj752whr3ontsm/SSLLibrary.dll?dl=1
http://xred.site50.net/syn/SSLLibrary.dll
Signatures
- Family: Xred
Xred is backdoor written in Delphi.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Adds Run key to start application 2 TTPs 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.
- Modifies registry class 1 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\新建文件夹\splwow64.exe"C:\Users\Admin\AppData\Local\Temp\新建文件夹\splwow64.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\._cache_splwow64.exe"C:\Users\Admin\AppData\Local\Temp\._cache_splwow64.exe"2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
._cache_splwow64.exe
memory/2016-62-0x0000000000AB0000-0x0000000000B0E000-memory.dmp
memory/2016-63-0x0000000002D20000-0x0000000002D30000-memory.dmp
memory/4460-0-0x0000000002170000-0x0000000002171000-memory.dmp
memory/4460-1-0x00000000004A0000-0x00000000004A1000-memory.dmp
memory/4460-65-0x0000000002170000-0x0000000002171000-memory.dmp
memory/4460-66-0x0000000000400000-0x000000000051A000-memory.dmp