Analysis Overview
SHA256
2628ad9be62db33bcc2dd982d80a7ec4ff840349a658795e13ef9611b784eefe
Threat Level: Known bad
The file 2628ad9be62db33bcc2dd982d80a7ec4ff840349a658795e13ef9611b784eefe was found to be: Known bad.
Malicious Activity Summary
CrimsonRat
CrimsonRAT main payload
Crimsonrat family
Suspicious Office macro
Office macro that triggers on suspicious action
Executes dropped EXE
Loads dropped DLL
Drops file in Program Files directory
System Location Discovery: System Language Discovery
Office loads VBA resources, possible macro or embedded object present
Modifies registry class
Checks processor information in registry
Suspicious use of SetWindowsHookEx
Suspicious behavior: AddClipboardFormatListener
Suspicious use of FindShellTrayWindow
Enumerates system info in registry
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-29 21:51
Signatures
Office macro that triggers on suspicious action
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Suspicious Office macro
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-29 21:51
Reported
2024-11-29 21:53
Platform
win7-20240708-en
Max time kernel
145s
Max time network
150s
Command Line
Signatures
CrimsonRAT main payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
CrimsonRat
Crimsonrat family
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\Tdlawis\rlbwrarhsa.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\PROGRA~3\Tdlawis\rlbwrarhsa.exe | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| File opened for modification | C:\PROGRA~3\Tdlawis\rlbwrarhsa.exe | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
Office loads VBA resources, possible macro or embedded object present
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{8BD21D42-EC42-11CE-9E0D-00AA006002F3} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{8A683C90-BA84-11CF-8110-00A0C9030074}\ = "IReturnSingle" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{5B9D8FC8-4A71-101B-97A6-00000B65C08B} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{5512D111-5CC6-11CF-8D67-00AA00BDCE1D}\ = "IWHTMLSubmitButton" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{8BD21D63-EC42-11CE-9E0D-00AA006002F3}\ = "IMdcToggleButton" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{5512D117-5CC6-11CF-8D67-00AA00BDCE1D} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{5512D125-5CC6-11CF-8D67-00AA00BDCE1D} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{944ACF93-A1E6-11CE-8104-00AA00611080}\ = "Tabs" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{5512D113-5CC6-11CF-8D67-00AA00BDCE1D}\ = "IWHTMLImage" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{8BD21D12-EC42-11CE-9E0D-00AA006002F3} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\TypeLib | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{82B02371-B5BC-11CF-810F-00A0C9030074}\ = "IReturnBoolean" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{944ACF93-A1E6-11CE-8104-00AA00611080}\ = "Tabs" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{5512D11F-5CC6-11CF-8D67-00AA00BDCE1D}\ = "IWHTMLPassword" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{7B020EC8-AF6C-11CE-9F46-00AA00574A4F} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{47FF8FE0-6198-11CF-8CE8-00AA006CB389}\ = "WHTMLControlEvents1" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{8BD21D13-EC42-11CE-9E0D-00AA006002F3} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{04598FC6-866C-11CF-AB7C-00AA00C08FCF} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{04598FC8-866C-11CF-AB7C-00AA00C08FCF}\ = "_UserForm" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{47FF8FE9-6198-11CF-8CE8-00AA006CB389}\ = "WHTMLControlEvents10" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\TypeLib\{B24EB9AB-1E26-4782-8453-861C695F9C3B}\2.0\ = "Microsoft Forms 2.0 Object Library" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{8BD21D12-EC42-11CE-9E0D-00AA006002F3}\ = "MdcTextEvents" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{4C5992A5-6926-101B-9992-00000B65C6F9} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{04598FC3-866C-11CF-AB7C-00AA00C08FCF}\ = "IScrollbar" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{47FF8FE2-6198-11CF-8CE8-00AA006CB389} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{29B86A70-F52E-11CE-9BCE-00AA00608E01}\ = "IOptionFrame" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{8BD21D23-EC42-11CE-9E0D-00AA006002F3} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{8BD21D43-EC42-11CE-9E0D-00AA006002F3}\ = "IMdcCheckBox" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{5512D11F-5CC6-11CF-8D67-00AA00BDCE1D} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{47FF8FE2-6198-11CF-8CE8-00AA006CB389}\ = "WHTMLControlEvents3" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{47FF8FE6-6198-11CF-8CE8-00AA006CB389}\ = "WHTMLControlEvents7" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{9A4BBF53-4E46-101B-8BBD-00AA003E3B29} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{9A4BBF53-4E46-101B-8BBD-00AA003E3B29}\ = "ControlEvents" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{8BD21D13-EC42-11CE-9E0D-00AA006002F3} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{8BD21D52-EC42-11CE-9E0D-00AA006002F3} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{92E11A03-7358-11CE-80CB-00AA00611080}\ = "Pages" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B24EB9AB-1E26-4782-8453-861C695F9C3B}\2.0\0 | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{04598FC4-866C-11CF-AB7C-00AA00C08FCF}\ = "ICommandButton" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{7B020EC1-AF6C-11CE-9F46-00AA00574A4F}\ = "CommandButtonEvents" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{8A683C91-BA84-11CF-8110-00A0C9030074}\ = "IReturnEffect" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{5512D117-5CC6-11CF-8D67-00AA00BDCE1D} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{8BD21D32-EC42-11CE-9E0D-00AA006002F3} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{47FF8FE4-6198-11CF-8CE8-00AA006CB389} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{47FF8FE9-6198-11CF-8CE8-00AA006CB389} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{5CEF5613-713D-11CE-80C9-00AA00611080}\ = "IPage" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{29B86A70-F52E-11CE-9BCE-00AA00608E01}\ = "IOptionFrame" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{944ACF93-A1E6-11CE-8104-00AA00611080} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{5512D111-5CC6-11CF-8D67-00AA00BDCE1D} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{92E11A03-7358-11CE-80CB-00AA00611080}\ = "Pages" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{8BD21D42-EC42-11CE-9E0D-00AA006002F3}\ = "MdcCheckBoxEvents" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{8BD21D52-EC42-11CE-9E0D-00AA006002F3} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{5CEF5613-713D-11CE-80C9-00AA00611080}\ = "IPage" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{5512D119-5CC6-11CF-8D67-00AA00BDCE1D}\ = "IWHTMLOption" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{4C5992A5-6926-101B-9992-00000B65C6F9}\ = "ImageEvents" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{82B02370-B5BC-11CF-810F-00A0C9030074} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Interface\{82B02371-B5BC-11CF-810F-00A0C9030074} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{9A4BBF53-4E46-101B-8BBD-00AA003E3B29}\ = "ControlEvents" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{5512D117-5CC6-11CF-8D67-00AA00BDCE1D}\ = "IWHTMLCheckbox" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{5512D11D-5CC6-11CF-8D67-00AA00BDCE1D}\ = "IWHTMLHidden" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{5512D11F-5CC6-11CF-8D67-00AA00BDCE1D}\ = "IWHTMLPassword" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{BEF6E003-A874-101A-8BBA-00AA00300CAB} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{8A683C90-BA84-11CF-8110-00A0C9030074} | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\Wow6432Node\Interface\{04598FC2-866C-11CF-AB7C-00AA00C08FCF}\ = "ITabStrip" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
Suspicious behavior: AddClipboardFormatListener
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1620 wrote to memory of 2556 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\ProgramData\Tdlawis\rlbwrarhsa.exe |
| PID 1620 wrote to memory of 2556 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\ProgramData\Tdlawis\rlbwrarhsa.exe |
| PID 1620 wrote to memory of 2556 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\ProgramData\Tdlawis\rlbwrarhsa.exe |
| PID 1620 wrote to memory of 2556 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\ProgramData\Tdlawis\rlbwrarhsa.exe |
Processes
C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\2628ad9be62db33bcc2dd982d80a7ec4ff840349a658795e13ef9611b784eefe.xls
C:\ProgramData\Tdlawis\rlbwrarhsa.exe
C:\ProgramData\Tdlawis\rlbwrarhsa.exe
Network
| Country | Destination | Domain | Proto |
| CA | 167.114.138.12:6828 | tcp | |
| CA | 167.114.138.12:8661 | tcp | |
| CA | 167.114.138.12:10614 | tcp | |
| CA | 167.114.138.12:14822 | tcp |
Files
memory/1620-0-0x000000005FFF0000-0x0000000060000000-memory.dmp
memory/1620-1-0x00000000727CD000-0x00000000727D8000-memory.dmp
memory/1620-4-0x0000000006370000-0x0000000006470000-memory.dmp
memory/1620-15-0x0000000006370000-0x0000000006470000-memory.dmp
memory/1620-17-0x0000000006370000-0x0000000006470000-memory.dmp
memory/1620-21-0x0000000006370000-0x0000000006470000-memory.dmp
C:\PROGRA~3\Dlphaws\omthrpa.zip
| MD5 | aac869f05f219ae6508ad279a97120d1 |
| SHA1 | 1de68ade3b8f45a2b7b846b35768e6301b5e2e0d |
| SHA256 | 0b655acf2e3c1c72746c4a69f56f4c5149b27cfea9d10fe2dbffd411b8b4fd8d |
| SHA512 | 51199423ed586ae4a2990df54a0231d9ea0d067e0f9badb3139b9a3a61f2d8044a02e1f8d27fcc4d7f59118d84326a1cc74f68c76e95b71a8ce7c1953451c05f |
\ProgramData\Tdlawis\rlbwrarhsa.exe
| MD5 | 8a1f4a512fe9edbcc62ba4b1c3e08f0a |
| SHA1 | fcc99860e1029e0d989121be46eb1da2f8402853 |
| SHA256 | ecd7d7a27a2a043919a233bb91e3b009c05b7c81ff132a7c29228e1c45d2b6a6 |
| SHA512 | 0e78fa869f051b5672b6f7a4dcc02ae7cdca55ba8ac2b14a34f30e94844fddb7caa22ac9fd555ac0bb270c1bfbedcb3e7ef074fcf9cba8dbf2ba0d5dc690444c |
memory/2556-44-0x000007FEF630E000-0x000007FEF630F000-memory.dmp
memory/2556-45-0x000007FEF6050000-0x000007FEF69ED000-memory.dmp
memory/2556-46-0x000007FEF6050000-0x000007FEF69ED000-memory.dmp
memory/1620-51-0x00000000727CD000-0x00000000727D8000-memory.dmp
memory/1620-52-0x0000000006370000-0x0000000006470000-memory.dmp
memory/1620-53-0x0000000006AA0000-0x0000000006BA0000-memory.dmp
memory/1620-54-0x0000000006370000-0x0000000006470000-memory.dmp
memory/2556-55-0x000007FEF6050000-0x000007FEF69ED000-memory.dmp
memory/2556-56-0x000007FEF630E000-0x000007FEF630F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-29 21:51
Reported
2024-11-29 21:53
Platform
win10v2004-20241007-en
Max time kernel
148s
Max time network
151s
Command Line
Signatures
CrimsonRAT main payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
CrimsonRat
Crimsonrat family
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\Tdlawis\rlbwrarhsa.exe | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\BIOS | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
Suspicious behavior: AddClipboardFormatListener
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4812 wrote to memory of 400 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\ProgramData\Tdlawis\rlbwrarhsa.exe |
| PID 4812 wrote to memory of 400 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\ProgramData\Tdlawis\rlbwrarhsa.exe |
Processes
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\2628ad9be62db33bcc2dd982d80a7ec4ff840349a658795e13ef9611b784eefe.xls"
C:\ProgramData\Tdlawis\rlbwrarhsa.exe
C:\ProgramData\Tdlawis\rlbwrarhsa.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | roaming.officeapps.live.com | udp |
| IE | 52.109.76.243:443 | roaming.officeapps.live.com | tcp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.32.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 243.76.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.179.89.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 107.12.20.2.in-addr.arpa | udp |
| CA | 167.114.138.12:6828 | tcp | |
| US | 8.8.8.8:53 | 75.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| CA | 167.114.138.12:8661 | tcp | |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| CA | 167.114.138.12:10614 | tcp | |
| CA | 167.114.138.12:14822 | tcp |
Files
memory/4812-0-0x00007FFE36410000-0x00007FFE36420000-memory.dmp
memory/4812-2-0x00007FFE36410000-0x00007FFE36420000-memory.dmp
memory/4812-4-0x00007FFE36410000-0x00007FFE36420000-memory.dmp
memory/4812-3-0x00007FFE36410000-0x00007FFE36420000-memory.dmp
memory/4812-1-0x00007FFE7642D000-0x00007FFE7642E000-memory.dmp
memory/4812-5-0x00007FFE76390000-0x00007FFE76585000-memory.dmp
memory/4812-6-0x00007FFE76390000-0x00007FFE76585000-memory.dmp
memory/4812-8-0x00007FFE76390000-0x00007FFE76585000-memory.dmp
memory/4812-11-0x00007FFE76390000-0x00007FFE76585000-memory.dmp
memory/4812-13-0x00007FFE76390000-0x00007FFE76585000-memory.dmp
memory/4812-12-0x00007FFE76390000-0x00007FFE76585000-memory.dmp
memory/4812-10-0x00007FFE76390000-0x00007FFE76585000-memory.dmp
memory/4812-9-0x00007FFE76390000-0x00007FFE76585000-memory.dmp
memory/4812-7-0x00007FFE36410000-0x00007FFE36420000-memory.dmp
memory/4812-14-0x00007FFE33AB0000-0x00007FFE33AC0000-memory.dmp
memory/4812-15-0x00007FFE33AB0000-0x00007FFE33AC0000-memory.dmp
memory/4812-23-0x00007FFE76390000-0x00007FFE76585000-memory.dmp
memory/4812-26-0x00007FFE76390000-0x00007FFE76585000-memory.dmp
memory/4812-42-0x00007FFE76390000-0x00007FFE76585000-memory.dmp
memory/4812-46-0x00007FFE76390000-0x00007FFE76585000-memory.dmp
memory/4812-55-0x00007FFE76390000-0x00007FFE76585000-memory.dmp
C:\ProgramData\Dlphaws\omthrpa.zip
| MD5 | aac869f05f219ae6508ad279a97120d1 |
| SHA1 | 1de68ade3b8f45a2b7b846b35768e6301b5e2e0d |
| SHA256 | 0b655acf2e3c1c72746c4a69f56f4c5149b27cfea9d10fe2dbffd411b8b4fd8d |
| SHA512 | 51199423ed586ae4a2990df54a0231d9ea0d067e0f9badb3139b9a3a61f2d8044a02e1f8d27fcc4d7f59118d84326a1cc74f68c76e95b71a8ce7c1953451c05f |
C:\ProgramData\Tdlawis\rlbwrarhsa.exe
| MD5 | 8a1f4a512fe9edbcc62ba4b1c3e08f0a |
| SHA1 | fcc99860e1029e0d989121be46eb1da2f8402853 |
| SHA256 | ecd7d7a27a2a043919a233bb91e3b009c05b7c81ff132a7c29228e1c45d2b6a6 |
| SHA512 | 0e78fa869f051b5672b6f7a4dcc02ae7cdca55ba8ac2b14a34f30e94844fddb7caa22ac9fd555ac0bb270c1bfbedcb3e7ef074fcf9cba8dbf2ba0d5dc690444c |
memory/400-74-0x00007FFE76390000-0x00007FFE76585000-memory.dmp
memory/4812-76-0x00007FFE76390000-0x00007FFE76585000-memory.dmp
memory/4812-75-0x00007FFE76390000-0x00007FFE76585000-memory.dmp
memory/400-73-0x00007FFE76390000-0x00007FFE76585000-memory.dmp
memory/400-77-0x000000001C100000-0x000000001C5CE000-memory.dmp
memory/400-78-0x000000001BB30000-0x000000001BBCC000-memory.dmp
memory/400-79-0x0000000001660000-0x0000000001668000-memory.dmp
memory/4812-80-0x00007FFE7642D000-0x00007FFE7642E000-memory.dmp
memory/4812-85-0x00007FFE76390000-0x00007FFE76585000-memory.dmp
memory/4812-86-0x00007FFE76390000-0x00007FFE76585000-memory.dmp
memory/4812-87-0x00007FFE76390000-0x00007FFE76585000-memory.dmp
memory/4812-88-0x00007FFE76390000-0x00007FFE76585000-memory.dmp
memory/400-92-0x00007FFE76390000-0x00007FFE76585000-memory.dmp