Analysis Overview
SHA256
3f676628b93c4319db6e96ad3067bda302a4024e403a18c06c5205e13b1a6f7d
Threat Level: Known bad
The file 3f676628b93c4319db6e96ad3067bda302a4024e403a18c06c5205e13b1a6f7d 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 use of WriteProcessMemory
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Checks processor information in registry
Suspicious use of FindShellTrayWindow
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-11 20:47
Signatures
Suspicious Office macro
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-11 20:47
Reported
2024-11-11 20:49
Platform
win7-20240903-en
Max time kernel
145s
Max time network
145s
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 2684 wrote to memory of 2736 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 2684 wrote to memory of 2736 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 2684 wrote to memory of 2736 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 2684 wrote to memory of 2736 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 2684 wrote to memory of 2736 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 2684 wrote to memory of 2736 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 2684 wrote to memory of 2736 | 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\3f676628b93c4319db6e96ad3067bda302a4024e403a18c06c5205e13b1a6f7d.xls
C:\Windows\SysWow64\regsvr32.exe
C:\Windows\SysWow64\regsvr32.exe -s ..\txdn.dll
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | dlfreight.com | udp |
| US | 104.18.211.89:80 | dlfreight.com | tcp |
| US | 104.18.211.89:443 | dlfreight.com | tcp |
| US | 8.8.8.8:53 | c.pki.goog | udp |
| GB | 172.217.16.227:80 | c.pki.goog | tcp |
| US | 8.8.8.8:53 | hadramout21.com | udp |
| US | 8.8.8.8:53 | groupesther.com | udp |
| US | 8.8.8.8:53 | datainline.com | udp |
| AR | 200.110.156.200:80 | datainline.com | tcp |
| US | 8.8.8.8:53 | greycoconut.com | udp |
| IN | 180.149.241.246:80 | greycoconut.com | tcp |
| US | 8.8.8.8:53 | www.greycoconut.com | udp |
| IN | 180.149.241.246:80 | www.greycoconut.com | tcp |
| US | 8.8.8.8:53 | crl.microsoft.com | udp |
| GB | 2.19.117.22:80 | crl.microsoft.com | tcp |
Files
memory/2684-0-0x000000005FFF0000-0x0000000060000000-memory.dmp
memory/2684-1-0x00000000720CD000-0x00000000720D8000-memory.dmp
memory/2684-16-0x00000000720CD000-0x00000000720D8000-memory.dmp
C:\Users\Admin\txdn.dll
| MD5 | 3b79e62476916ff33ddc0668a0898e6d |
| SHA1 | fe4f73a8019a0407cec5e2eb0c344adc4ab73bae |
| SHA256 | 418099d0e61f486fc52144bd0b16c8833b893eb9203163835c59045ca9782b81 |
| SHA512 | 3b42ec3d6c8d68824e43ea8bd0b62c4434fd995f8dc93c3a278e229168b080c5920b226c02236bd98cd7ddadab19536dd05a4e4f35323393ac9ef766b0759bfa |
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-11 20:47
Reported
2024-11-11 20:49
Platform
win10v2004-20241007-en
Max time kernel
148s
Max time network
150s
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 2908 wrote to memory of 2628 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 2908 wrote to memory of 2628 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 2908 wrote to memory of 2628 | 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\3f676628b93c4319db6e96ad3067bda302a4024e403a18c06c5205e13b1a6f7d.xls"
C:\Windows\SysWow64\regsvr32.exe
C:\Windows\SysWow64\regsvr32.exe -s ..\txdn.dll
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 |
| FR | 52.109.68.129:443 | roaming.officeapps.live.com | tcp |
| US | 8.8.8.8:53 | dlfreight.com | udp |
| US | 104.18.211.89:80 | dlfreight.com | tcp |
| US | 104.18.211.89:443 | dlfreight.com | tcp |
| US | 8.8.8.8:53 | c.pki.goog | udp |
| GB | 142.250.187.227:80 | c.pki.goog | tcp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 129.68.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 89.211.18.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 74.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 227.187.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | hadramout21.com | udp |
| US | 8.8.8.8:53 | groupesther.com | udp |
| US | 8.8.8.8:53 | datainline.com | udp |
| AR | 200.110.156.200:80 | datainline.com | tcp |
| US | 8.8.8.8:53 | greycoconut.com | udp |
| IN | 180.149.241.246:80 | greycoconut.com | tcp |
| US | 8.8.8.8:53 | 200.156.110.200.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.greycoconut.com | udp |
| IN | 180.149.241.246:80 | www.greycoconut.com | tcp |
| US | 8.8.8.8:53 | 246.241.149.180.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 92.16.208.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 99.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
Files
memory/2908-1-0x00007FFA3ED6D000-0x00007FFA3ED6E000-memory.dmp
memory/2908-0-0x00007FF9FED50000-0x00007FF9FED60000-memory.dmp
memory/2908-2-0x00007FF9FED50000-0x00007FF9FED60000-memory.dmp
memory/2908-3-0x00007FF9FED50000-0x00007FF9FED60000-memory.dmp
memory/2908-5-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp
memory/2908-6-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp
memory/2908-7-0x00007FF9FED50000-0x00007FF9FED60000-memory.dmp
memory/2908-4-0x00007FF9FED50000-0x00007FF9FED60000-memory.dmp
memory/2908-10-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp
memory/2908-9-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp
memory/2908-13-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp
memory/2908-12-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp
memory/2908-11-0x00007FF9FCA50000-0x00007FF9FCA60000-memory.dmp
memory/2908-18-0x00007FF9FCA50000-0x00007FF9FCA60000-memory.dmp
memory/2908-19-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp
memory/2908-17-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp
memory/2908-16-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp
memory/2908-15-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp
memory/2908-14-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp
memory/2908-8-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp
C:\Users\Admin\txdn.dll
| MD5 | 3b79e62476916ff33ddc0668a0898e6d |
| SHA1 | fe4f73a8019a0407cec5e2eb0c344adc4ab73bae |
| SHA256 | 418099d0e61f486fc52144bd0b16c8833b893eb9203163835c59045ca9782b81 |
| SHA512 | 3b42ec3d6c8d68824e43ea8bd0b62c4434fd995f8dc93c3a278e229168b080c5920b226c02236bd98cd7ddadab19536dd05a4e4f35323393ac9ef766b0759bfa |
memory/2908-43-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp
memory/2908-44-0x00007FFA3ED6D000-0x00007FFA3ED6E000-memory.dmp
memory/2908-45-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp
memory/2908-46-0x00007FFA3ECD0000-0x00007FFA3EEC5000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
| MD5 | 2c42685e1b4e42bd476eaaa746f22837 |
| SHA1 | 83f812717348cafe745405fdc97c0257e4f0d301 |
| SHA256 | de459cb06526e18360c1eb04afa3b6ffad989dab7b35d18cc33812c69ab7bb58 |
| SHA512 | 23d81f0e750f94cd4b186c2fd767aad3f09ae5f0902f0c15fb8b72fd2e43170bef8360375294ce148e2a0136443b07ff413b20571bae417f6b256b4eadd5f344 |