Malware Analysis Report

2025-01-18 16:18

Sample ID 241129-1qjrrssngp
Target 2628ad9be62db33bcc2dd982d80a7ec4ff840349a658795e13ef9611b784eefe
SHA256 2628ad9be62db33bcc2dd982d80a7ec4ff840349a658795e13ef9611b784eefe
Tags
macro macro_on_action crimsonrat discovery rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

2628ad9be62db33bcc2dd982d80a7ec4ff840349a658795e13ef9611b784eefe

Threat Level: Known bad

The file 2628ad9be62db33bcc2dd982d80a7ec4ff840349a658795e13ef9611b784eefe was found to be: Known bad.

Malicious Activity Summary

macro macro_on_action crimsonrat discovery rat

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

Analysis: static1

Detonation Overview

Reported

2024-11-29 21:51

Signatures

Office macro that triggers on suspicious action

macro macro_on_action
Description Indicator Process Target
N/A N/A N/A N/A

Suspicious Office macro

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

"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\2628ad9be62db33bcc2dd982d80a7ec4ff840349a658795e13ef9611b784eefe.xls

Signatures

CrimsonRAT main payload

Description Indicator Process Target
N/A N/A N/A N/A

CrimsonRat

rat crimsonrat

Crimsonrat family

crimsonrat

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

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

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

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\2628ad9be62db33bcc2dd982d80a7ec4ff840349a658795e13ef9611b784eefe.xls"

Signatures

CrimsonRAT main payload

Description Indicator Process Target
N/A N/A N/A N/A

CrimsonRat

rat crimsonrat

Crimsonrat family

crimsonrat

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 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