Analysis
- max time kernel
299s - max time network
302s - platform
windows11-21h2_x64 - resource
win11-20240426-en - resource tags
- submitted
01/05/2024, 15:45
General
- Target XWorm-RAT-V2.1-main/XWorm RAT V2.1/XWorm RAT V2.1.exe
- Size 2.2MB
- Sample240501-s7hl2ace85
- SHA256 ea9258e9975b8925a739066221d996aef19b4ef4f4c91524f82e39d403f25579
Malware Config
Signatures
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 2 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 IoCs
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Delays execution with timeout.exe 1 IoCs
- Enumerates processes with tasklist 1 TTPs 1 IoCs
- Modifies registry key 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 19 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\XWorm-RAT-V2.1-main\XWorm RAT V2.1\XWorm RAT V2.1.exe"C:\Users\Admin\AppData\Local\Temp\XWorm-RAT-V2.1-main\XWorm RAT V2.1\XWorm RAT V2.1.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\XWorm-RAT-V2.1-main\XWorm RAT V2.1\Command Reciever.exe"C:\Users\Admin\AppData\Local\Temp\XWorm-RAT-V2.1-main\XWorm RAT V2.1\Command Reciever.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\Command Reciever.exe"C:\Users\Admin\AppData\Local\Temp\Command Reciever.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp7455.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmp7455.tmp.bat3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\tasklist.exeTasklist /fi "PID eq 3880"4⤵
- Enumerates processes with tasklist
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\find.exefind ":"4⤵
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C:\Windows\system32\timeout.exeTimeout /T 1 /Nobreak4⤵
- Delays execution with timeout.exe
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C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLogger\Update.exe"C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLogger\Update.exe"4⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v ChromeUpdater /t REG_SZ /d C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLogger\Update.exe /f5⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\reg.exereg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v ChromeUpdater /t REG_SZ /d C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLogger\Update.exe /f6⤵
- Adds Run key to start application
- Modifies registry key
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Command Reciever.exe
sqlite.interop.dll
tmp7455.tmp.bat
memory/668-48-0x000001DBCD150000-0x000001DBCD18A000-memory.dmp
memory/668-46-0x000001DBCD120000-0x000001DBCD142000-memory.dmp
memory/668-49-0x000001DBCD080000-0x000001DBCD0A6000-memory.dmp
memory/668-42-0x000001DBCCD60000-0x000001DBCCDCA000-memory.dmp
memory/668-44-0x000001DBCCFD0000-0x000001DBCD082000-memory.dmp
memory/668-41-0x000001DBCCCE0000-0x000001DBCCCEA000-memory.dmp
memory/668-45-0x000001DBCD0D0000-0x000001DBCD120000-memory.dmp
memory/668-67-0x000001DBCD1B0000-0x000001DBCD1C2000-memory.dmp
memory/3816-2-0x0000000005C00000-0x00000000061A6000-memory.dmp
memory/3816-0-0x000000007505E000-0x000000007505F000-memory.dmp
memory/3816-1-0x00000000009D0000-0x0000000000C12000-memory.dmp
memory/3880-26-0x0000011578990000-0x0000011578A06000-memory.dmp
memory/3880-27-0x00000115780E0000-0x00000115780F0000-memory.dmp
memory/3880-20-0x0000011575F60000-0x0000011576500000-memory.dmp
memory/3880-30-0x0000011578280000-0x000001157829E000-memory.dmp
memory/3880-19-0x00007FFCF84D3000-0x00007FFCF84D5000-memory.dmp
memory/4500-18-0x0000000006040000-0x00000000060D2000-memory.dmp
memory/4500-31-0x0000000007380000-0x00000000073E6000-memory.dmp
memory/4500-29-0x0000000006240000-0x0000000006296000-memory.dmp
memory/4500-28-0x0000000005EE0000-0x0000000005EEA000-memory.dmp
memory/4500-15-0x0000000005FA0000-0x000000000603C000-memory.dmp
memory/4500-21-0x0000000005F30000-0x0000000005F40000-memory.dmp
memory/4500-11-0x0000000000EF0000-0x0000000001582000-memory.dmp
memory/4500-12-0x0000000075050000-0x0000000075801000-memory.dmp
memory/4500-71-0x0000000075050000-0x0000000075801000-memory.dmp
memory/4500-72-0x0000000005F30000-0x0000000005F40000-memory.dmp