Analysis
- max time kernel
1197s - max time network
1177s - platform
windows10-2004_x64 - resource
win10v2004-20240426-it - submitted
16/05/2024, 12:30
General
- Target XWorm V5.2.exe
- Size 12.9MB
- Sample240516-ppgp8sce6v
- SHA256 34579787f8fa96efd57639473739e7c537e14dc77d941a545e0a211250863761
Malware Config
Extracted
-
xred
-
xred.mooo.com
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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
- Xred
Xred is backdoor written in Delphi.
- Xred family
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 2 IoCs
- Obfuscated with Agile.Net obfuscator 6 IoCs
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
- 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 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 3 IoCs
- Modifies registry class 2 IoCs
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 5 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\XWorm V5.2.exe"C:\Users\Admin\AppData\Local\Temp\XWorm V5.2.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_XWorm V5.2.exe"C:\Users\Admin\AppData\Local\Temp\._cache_XWorm V5.2.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
-
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C:\ProgramData\Synaptics\Synaptics.exe"C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate2⤵
- Checks computer location settings
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe"C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
-
-
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Synaptics.exe
._cache_XWorm V5.2.exe
TMzpx.dll
b9eTMQFJ.xlsm
memory/1248-0-0x0000000002FA0000-0x0000000002FA1000-memory.dmp
memory/1248-128-0x0000000000400000-0x00000000010F3000-memory.dmp
memory/1260-253-0x0000000000400000-0x00000000010F3000-memory.dmp
memory/1260-222-0x0000000000400000-0x00000000010F3000-memory.dmp
memory/4044-201-0x00007FFFA7650000-0x00007FFFA7660000-memory.dmp
memory/4044-197-0x00007FFFA7650000-0x00007FFFA7660000-memory.dmp
memory/4044-198-0x00007FFFA7650000-0x00007FFFA7660000-memory.dmp
memory/4044-200-0x00007FFFA7650000-0x00007FFFA7660000-memory.dmp
memory/4044-202-0x00007FFFA5060000-0x00007FFFA5070000-memory.dmp
memory/4044-205-0x00007FFFA5060000-0x00007FFFA5070000-memory.dmp
memory/4044-199-0x00007FFFA7650000-0x00007FFFA7660000-memory.dmp
memory/4228-206-0x000001D79B1B0000-0x000001D79BD9C000-memory.dmp
memory/4228-207-0x000001D7FFD90000-0x000001D7FFE92000-memory.dmp
memory/4228-208-0x000001D7FFC80000-0x000001D7FFC92000-memory.dmp
memory/4228-72-0x000001D7FED20000-0x000001D7FF958000-memory.dmp
memory/4228-61-0x00007FFFC9463000-0x00007FFFC9465000-memory.dmp