Analysis Overview
SHA256
f67a7c9157e4689159efbe72d02d54e77dd14710bd675cf3cc049c58c9705d09
Threat Level: Known bad
The file f67a7c9157e4689159efbe72d02d54e77dd14710bd675cf3cc049c58c9705d09 was found to be: Known bad.
Malicious Activity Summary
Process spawned unexpected child process
Suspicious Office macro
System Location Discovery: System Language Discovery
Enumerates system info in registry
Suspicious behavior: AddClipboardFormatListener
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Checks processor information in registry
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-11 20:33
Signatures
Suspicious Office macro
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-11 20:33
Reported
2024-11-11 20:35
Platform
win10v2004-20241007-en
Max time kernel
133s
Max time network
138s
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\SYSTEM32\regsvr32.exe | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE |
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
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3932 wrote to memory of 3164 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\SYSTEM32\regsvr32.exe |
| PID 3932 wrote to memory of 3164 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\SYSTEM32\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\f67a7c9157e4689159efbe72d02d54e77dd14710bd675cf3cc049c58c9705d09.xls"
C:\Windows\SYSTEM32\regsvr32.exe
regsvr32.exe ..\wnrul.ocx
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 18.89.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.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 | www.escueladecinemza.com.ar | udp |
| AR | 179.43.117.122:443 | www.escueladecinemza.com.ar | tcp |
| 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 | 2.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 122.117.43.179.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 |
| AR | 179.43.117.122:80 | www.escueladecinemza.com.ar | tcp |
| US | 8.8.8.8:53 | 69.194.219.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.210.23.2.in-addr.arpa | udp |
| AR | 179.43.117.122:443 | www.escueladecinemza.com.ar | tcp |
| US | 8.8.8.8:53 | escueladecinemza.com.ar | udp |
| AR | 179.43.117.122:443 | escueladecinemza.com.ar | tcp |
| US | 8.8.8.8:53 | 12.173.189.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
Files
memory/3932-3-0x00007FFFB8710000-0x00007FFFB8720000-memory.dmp
memory/3932-0-0x00007FFFB8710000-0x00007FFFB8720000-memory.dmp
memory/3932-1-0x00007FFFF872D000-0x00007FFFF872E000-memory.dmp
memory/3932-2-0x00007FFFB8710000-0x00007FFFB8720000-memory.dmp
memory/3932-4-0x00007FFFB8710000-0x00007FFFB8720000-memory.dmp
memory/3932-5-0x00007FFFB8710000-0x00007FFFB8720000-memory.dmp
memory/3932-8-0x00007FFFF8690000-0x00007FFFF8885000-memory.dmp
memory/3932-12-0x00007FFFF8690000-0x00007FFFF8885000-memory.dmp
memory/3932-11-0x00007FFFF8690000-0x00007FFFF8885000-memory.dmp
memory/3932-10-0x00007FFFF8690000-0x00007FFFF8885000-memory.dmp
memory/3932-13-0x00007FFFB5E60000-0x00007FFFB5E70000-memory.dmp
memory/3932-9-0x00007FFFF8690000-0x00007FFFF8885000-memory.dmp
memory/3932-14-0x00007FFFB5E60000-0x00007FFFB5E70000-memory.dmp
memory/3932-7-0x00007FFFF8690000-0x00007FFFF8885000-memory.dmp
memory/3932-16-0x00007FFFF8690000-0x00007FFFF8885000-memory.dmp
memory/3932-17-0x00007FFFF8690000-0x00007FFFF8885000-memory.dmp
memory/3932-19-0x00007FFFF8690000-0x00007FFFF8885000-memory.dmp
memory/3932-20-0x00007FFFF8690000-0x00007FFFF8885000-memory.dmp
memory/3932-18-0x00007FFFF8690000-0x00007FFFF8885000-memory.dmp
memory/3932-15-0x00007FFFF8690000-0x00007FFFF8885000-memory.dmp
memory/3932-6-0x00007FFFF8690000-0x00007FFFF8885000-memory.dmp
C:\Users\Admin\wnrul.ocx
| MD5 | 3ffd9a2715e478a2442c309536507f93 |
| SHA1 | 1d3a2db3cf0e80f972084f0d83adbf7f77578f75 |
| SHA256 | 35e3dd8043744d5c6ea3f008188d397312d355ada64cbed3b2c641daf28f5ae3 |
| SHA512 | 311c4b871903a69053910b65e01285d181659d1117d9e5332c12ad801a3d9f5087ae7ae9ecfe507121126205bcb5b40debfc6589715b8ccfed6e8e7cfe6317b9 |
memory/3932-42-0x00007FFFF872D000-0x00007FFFF872E000-memory.dmp
memory/3932-43-0x00007FFFF8690000-0x00007FFFF8885000-memory.dmp
memory/3932-47-0x00007FFFF8690000-0x00007FFFF8885000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-11 20:33
Reported
2024-11-11 20:35
Platform
win7-20240903-en
Max time kernel
117s
Max time network
118s
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 |
| N/A | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1732 wrote to memory of 2096 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1732 wrote to memory of 2096 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1732 wrote to memory of 2096 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1732 wrote to memory of 2096 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1732 wrote to memory of 2096 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1732 wrote to memory of 2096 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1732 wrote to memory of 2096 | 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\f67a7c9157e4689159efbe72d02d54e77dd14710bd675cf3cc049c58c9705d09.xls
C:\Windows\SysWOW64\regsvr32.exe
regsvr32.exe ..\wnrul.ocx
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | www.escueladecinemza.com.ar | udp |
| AR | 179.43.117.122:443 | www.escueladecinemza.com.ar | tcp |
| US | 8.8.8.8:53 | r10.o.lencr.org | udp |
| GB | 2.23.210.75:80 | r10.o.lencr.org | tcp |
| AR | 179.43.117.122:80 | www.escueladecinemza.com.ar | tcp |
| AR | 179.43.117.122:443 | www.escueladecinemza.com.ar | tcp |
| US | 8.8.8.8:53 | escueladecinemza.com.ar | udp |
| AR | 179.43.117.122:443 | escueladecinemza.com.ar | tcp |
| US | 8.8.8.8:53 | crl.microsoft.com | udp |
| GB | 2.19.117.18:80 | crl.microsoft.com | tcp |
Files
memory/1732-0-0x000000005FFF0000-0x0000000060000000-memory.dmp
memory/1732-1-0x000000007213D000-0x0000000072148000-memory.dmp
C:\Users\Admin\wnrul.ocx
| MD5 | 3ffd9a2715e478a2442c309536507f93 |
| SHA1 | 1d3a2db3cf0e80f972084f0d83adbf7f77578f75 |
| SHA256 | 35e3dd8043744d5c6ea3f008188d397312d355ada64cbed3b2c641daf28f5ae3 |
| SHA512 | 311c4b871903a69053910b65e01285d181659d1117d9e5332c12ad801a3d9f5087ae7ae9ecfe507121126205bcb5b40debfc6589715b8ccfed6e8e7cfe6317b9 |
memory/1732-21-0x000000007213D000-0x0000000072148000-memory.dmp