Analysis Overview
SHA256
02f6bb0a4a3492090cfa8b18c504086c598ed59ebe97cc2f15c7ff1a0a8f66b0
Threat Level: Known bad
The file 02f6bb0a4a3492090cfa8b18c504086c598ed59ebe97cc2f15c7ff1a0a8f66b0 was found to be: Known bad.
Malicious Activity Summary
Process spawned unexpected child process
Suspicious Office macro
System Location Discovery: System Language Discovery
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-11 21:23
Signatures
Suspicious Office macro
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-11 21:23
Reported
2024-11-11 21:25
Platform
win10v2004-20241007-en
Max time kernel
133s
Max time network
143s
Command Line
Signatures
Process spawned unexpected child process
| Description | Indicator | Process | Target |
| Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process | N/A | C:\Windows\SysWow64\regsvr32.exe | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWow64\regsvr32.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 opened | \REGISTRY\MACHINE\Hardware\Description\System\BIOS | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| 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 |
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 FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 224 wrote to memory of 2612 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 224 wrote to memory of 2612 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 224 wrote to memory of 2612 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.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\02f6bb0a4a3492090cfa8b18c504086c598ed59ebe97cc2f15c7ff1a0a8f66b0.xlsm"
C:\Windows\SysWow64\regsvr32.exe
C:\Windows\SysWow64\regsvr32.exe -s ..\rfs.dll
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 101.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | roaming.officeapps.live.com | udp |
| GB | 52.109.28.47:443 | roaming.officeapps.live.com | tcp |
| US | 8.8.8.8:53 | henrysfreshroast.com | udp |
| US | 138.207.69.73:80 | henrysfreshroast.com | tcp |
| US | 138.207.69.73:443 | henrysfreshroast.com | tcp |
| US | 8.8.8.8:53 | 18.89.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 47.28.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.69.207.138.in-addr.arpa | udp |
| US | 8.8.8.8:53 | r10.o.lencr.org | udp |
| GB | 2.23.210.75:80 | r10.o.lencr.org | tcp |
| US | 8.8.8.8:53 | 32.169.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.173.189.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
Files
memory/224-0-0x00007FFA1AFF0000-0x00007FFA1B000000-memory.dmp
memory/224-1-0x00007FFA5B00D000-0x00007FFA5B00E000-memory.dmp
memory/224-4-0x00007FFA1AFF0000-0x00007FFA1B000000-memory.dmp
memory/224-3-0x00007FFA1AFF0000-0x00007FFA1B000000-memory.dmp
memory/224-2-0x00007FFA1AFF0000-0x00007FFA1B000000-memory.dmp
memory/224-8-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp
memory/224-9-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp
memory/224-7-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp
memory/224-11-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp
memory/224-12-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp
memory/224-13-0x00007FFA18690000-0x00007FFA186A0000-memory.dmp
memory/224-10-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp
memory/224-6-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp
memory/224-5-0x00007FFA1AFF0000-0x00007FFA1B000000-memory.dmp
memory/224-14-0x00007FFA18690000-0x00007FFA186A0000-memory.dmp
memory/224-15-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp
memory/224-16-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp
memory/224-20-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp
memory/224-19-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp
memory/224-22-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp
memory/224-21-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp
memory/224-18-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp
memory/224-17-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp
C:\Users\Admin\rfs.dll
| MD5 | 2fc1c11a3c2295b3194b1bf83b86982c |
| SHA1 | 8ae7381b0af50a07310f7ffbecfa780f7740305f |
| SHA256 | 4ac4fc0780ce238c703abf6b7193462805ecaed4e36cdc2b74a89af0e260cd6c |
| SHA512 | 58d05cc0e6f3e767156e50a4e082d86799463cf2f8f09df4d0c5e213ffed9db5e912d5f911d58454d2211a8c7c5d65216477f7bdcd9156e1f54f4f52919bb0b8 |
memory/224-44-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp
memory/224-45-0x00007FFA5B00D000-0x00007FFA5B00E000-memory.dmp
memory/224-46-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp
memory/224-50-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
| MD5 | ae03a73f671d044237cc654810bf7469 |
| SHA1 | cd0ad254212e5371cb107c13df565defbfa37cf6 |
| SHA256 | d9f426956f3742eb648d724aa3265fcca19f625d7cdc33e5d8e809173431618a |
| SHA512 | f0c29f10a61eb8ff9b3069a458235feb811f4d3dc3dcd654bff7dffff9cf2696faa7cb72425bc670003c658501cbea1a9c53539aeea392a840bbdddac68fded3 |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-11 21:23
Reported
2024-11-11 21:25
Platform
win7-20240903-en
Max time kernel
117s
Max time network
128s
Command Line
Signatures
Process spawned unexpected child process
| Description | Indicator | Process | Target |
| Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process | N/A | C:\Windows\SysWow64\regsvr32.exe | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE |
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 |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWow64\regsvr32.exe | N/A |
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 |
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 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 |
| N/A | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2736 wrote to memory of 2984 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 2736 wrote to memory of 2984 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 2736 wrote to memory of 2984 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 2736 wrote to memory of 2984 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 2736 wrote to memory of 2984 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 2736 wrote to memory of 2984 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 2736 wrote to memory of 2984 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.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\02f6bb0a4a3492090cfa8b18c504086c598ed59ebe97cc2f15c7ff1a0a8f66b0.xlsm
C:\Windows\SysWow64\regsvr32.exe
C:\Windows\SysWow64\regsvr32.exe -s ..\rfs.dll
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | henrysfreshroast.com | udp |
| US | 138.207.69.73:80 | henrysfreshroast.com | tcp |
| US | 138.207.69.73:443 | henrysfreshroast.com | tcp |
| US | 8.8.8.8:53 | r10.o.lencr.org | udp |
| GB | 2.23.210.75:80 | r10.o.lencr.org | tcp |
| US | 8.8.8.8:53 | crl.microsoft.com | udp |
| GB | 2.19.117.18:80 | crl.microsoft.com | tcp |
Files
memory/2736-0-0x000000005FFF0000-0x0000000060000000-memory.dmp
memory/2736-1-0x000000007201D000-0x0000000072028000-memory.dmp
memory/2736-20-0x000000007201D000-0x0000000072028000-memory.dmp
C:\Users\Admin\rfs.dll
| MD5 | 2fc1c11a3c2295b3194b1bf83b86982c |
| SHA1 | 8ae7381b0af50a07310f7ffbecfa780f7740305f |
| SHA256 | 4ac4fc0780ce238c703abf6b7193462805ecaed4e36cdc2b74a89af0e260cd6c |
| SHA512 | 58d05cc0e6f3e767156e50a4e082d86799463cf2f8f09df4d0c5e213ffed9db5e912d5f911d58454d2211a8c7c5d65216477f7bdcd9156e1f54f4f52919bb0b8 |