Analysis Overview
SHA256
a55d81070dbde3d02222cb8ea15b9f07dfc1bd6d89953c1c52df715813753e7c
Threat Level: Known bad
The file a55d81070dbde3d02222cb8ea15b9f07dfc1bd6d89953c1c52df715813753e7c 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
Checks processor information in registry
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of FindShellTrayWindow
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-11 17:16
Signatures
Suspicious Office macro
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-11 17:16
Reported
2024-11-11 17:19
Platform
win7-20240729-en
Max time kernel
136s
Max time network
147s
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 |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2716 wrote to memory of 3016 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 2716 wrote to memory of 3016 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 2716 wrote to memory of 3016 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 2716 wrote to memory of 3016 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 2716 wrote to memory of 3016 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 2716 wrote to memory of 3016 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 2716 wrote to memory of 3016 | 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\a55d81070dbde3d02222cb8ea15b9f07dfc1bd6d89953c1c52df715813753e7c.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 | www.almoeqatar.com | udp |
| US | 162.240.156.207:443 | www.almoeqatar.com | tcp |
| US | 162.240.156.207:443 | www.almoeqatar.com | tcp |
| US | 162.240.156.207:443 | www.almoeqatar.com | tcp |
| US | 162.240.156.207:443 | www.almoeqatar.com | tcp |
| US | 8.8.8.8:53 | www.ayelet.info | udp |
| US | 104.21.90.173:80 | www.ayelet.info | tcp |
| US | 8.8.8.8:53 | www.lavameapp.com.ar | udp |
| US | 173.236.211.175:80 | www.lavameapp.com.ar | tcp |
| US | 173.236.211.175:443 | www.lavameapp.com.ar | tcp |
| US | 8.8.8.8:53 | lista33rivera.uy | udp |
| US | 192.185.88.146:80 | lista33rivera.uy | tcp |
| US | 8.8.8.8:53 | cenaf.com.co | udp |
| US | 162.241.61.153:80 | cenaf.com.co | tcp |
| US | 8.8.8.8:53 | www.microsoft.com | udp |
| US | 23.192.22.93:80 | www.microsoft.com | tcp |
| US | 8.8.8.8:53 | crl.microsoft.com | udp |
| GB | 2.19.117.22:80 | crl.microsoft.com | tcp |
Files
memory/2716-1-0x0000000071D4D000-0x0000000071D58000-memory.dmp
memory/2716-0-0x000000005FFF0000-0x0000000060000000-memory.dmp
C:\Users\Admin\rfs.dll
| MD5 | 8713dd892ec0930f713e13141920c5ad |
| SHA1 | a3e081efb5b6c974622ac191f8412f8b4f995b6e |
| SHA256 | cfd81c97ae0c2d0a50e698d7dd7b5f7aa323ce219c7c56ab49bbab85bab2d0fb |
| SHA512 | 1c76c7e9b5d4fd7f354f3c727ccbd5ee93c94cecb0654e7af757d5eb9992fa186cd03c4915cf1f8b5d1b3ab9461ddb01b51da3b0f7bea6411314ecd962306a4f |
memory/2716-20-0x0000000071D4D000-0x0000000071D58000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-11 17:16
Reported
2024-11-11 17:19
Platform
win10v2004-20241007-en
Max time kernel
133s
Max time network
135s
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 1400 wrote to memory of 2040 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 1400 wrote to memory of 2040 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 1400 wrote to memory of 2040 | 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\a55d81070dbde3d02222cb8ea15b9f07dfc1bd6d89953c1c52df715813753e7c.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 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | roaming.officeapps.live.com | udp |
| NL | 52.109.89.19:443 | roaming.officeapps.live.com | tcp |
| US | 8.8.8.8:53 | 97.32.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.89.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.almoeqatar.com | udp |
| US | 162.240.156.207:443 | www.almoeqatar.com | tcp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 207.156.240.162.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 32.169.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.ayelet.info | udp |
| US | 172.67.202.176:80 | www.ayelet.info | tcp |
| US | 8.8.8.8:53 | www.lavameapp.com.ar | udp |
| US | 8.8.8.8:53 | 176.202.67.172.in-addr.arpa | udp |
| US | 173.236.211.175:80 | www.lavameapp.com.ar | tcp |
| US | 173.236.211.175:443 | www.lavameapp.com.ar | tcp |
| US | 8.8.8.8:53 | 175.211.236.173.in-addr.arpa | udp |
| US | 8.8.8.8:53 | lista33rivera.uy | udp |
| US | 192.185.88.146:80 | lista33rivera.uy | tcp |
| US | 8.8.8.8:53 | cenaf.com.co | udp |
| US | 162.241.61.153:80 | cenaf.com.co | tcp |
| US | 8.8.8.8:53 | 146.88.185.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 153.61.241.162.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 25.73.42.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | udp |
Files
memory/1400-3-0x00007FFED9230000-0x00007FFED9240000-memory.dmp
memory/1400-0-0x00007FFED9230000-0x00007FFED9240000-memory.dmp
memory/1400-2-0x00007FFED9230000-0x00007FFED9240000-memory.dmp
memory/1400-1-0x00007FFF1924D000-0x00007FFF1924E000-memory.dmp
memory/1400-5-0x00007FFF191B0000-0x00007FFF193A5000-memory.dmp
memory/1400-6-0x00007FFF191B0000-0x00007FFF193A5000-memory.dmp
memory/1400-9-0x00007FFF191B0000-0x00007FFF193A5000-memory.dmp
memory/1400-14-0x00007FFF191B0000-0x00007FFF193A5000-memory.dmp
memory/1400-15-0x00007FFF191B0000-0x00007FFF193A5000-memory.dmp
memory/1400-16-0x00007FFED6A80000-0x00007FFED6A90000-memory.dmp
memory/1400-13-0x00007FFF191B0000-0x00007FFF193A5000-memory.dmp
memory/1400-17-0x00007FFED6A80000-0x00007FFED6A90000-memory.dmp
memory/1400-12-0x00007FFF191B0000-0x00007FFF193A5000-memory.dmp
memory/1400-21-0x00007FFF191B0000-0x00007FFF193A5000-memory.dmp
memory/1400-22-0x00007FFF191B0000-0x00007FFF193A5000-memory.dmp
memory/1400-20-0x00007FFF191B0000-0x00007FFF193A5000-memory.dmp
memory/1400-19-0x00007FFF191B0000-0x00007FFF193A5000-memory.dmp
memory/1400-18-0x00007FFF191B0000-0x00007FFF193A5000-memory.dmp
memory/1400-11-0x00007FFF191B0000-0x00007FFF193A5000-memory.dmp
memory/1400-10-0x00007FFF191B0000-0x00007FFF193A5000-memory.dmp
memory/1400-8-0x00007FFF191B0000-0x00007FFF193A5000-memory.dmp
memory/1400-7-0x00007FFED9230000-0x00007FFED9240000-memory.dmp
memory/1400-4-0x00007FFED9230000-0x00007FFED9240000-memory.dmp
memory/1400-36-0x00007FFF191B0000-0x00007FFF193A5000-memory.dmp
memory/1400-37-0x00007FFF1924D000-0x00007FFF1924E000-memory.dmp
memory/1400-38-0x00007FFF191B0000-0x00007FFF193A5000-memory.dmp
memory/1400-42-0x00007FFF191B0000-0x00007FFF193A5000-memory.dmp
C:\Users\Admin\rfs.dll
| MD5 | 8713dd892ec0930f713e13141920c5ad |
| SHA1 | a3e081efb5b6c974622ac191f8412f8b4f995b6e |
| SHA256 | cfd81c97ae0c2d0a50e698d7dd7b5f7aa323ce219c7c56ab49bbab85bab2d0fb |
| SHA512 | 1c76c7e9b5d4fd7f354f3c727ccbd5ee93c94cecb0654e7af757d5eb9992fa186cd03c4915cf1f8b5d1b3ab9461ddb01b51da3b0f7bea6411314ecd962306a4f |
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
| MD5 | 91f70ca6c8190e2c456a0059e152abaf |
| SHA1 | 5d49a2d37e9c0156b11e370203df010b4ee103fe |
| SHA256 | 30049553bf8be899416150d06f9485529d9df060c0d6da9975bdfb33cec6fb45 |
| SHA512 | 8c8826af2cc3c1f75c61d7e29bcebe2ef35ed77ada5f2dae148f4d93619a704e42484095685441b33dffc70616822435c5457591c08f492581f2223b9853741a |