Analysis Overview
SHA256
a87f232e899ee4982c0df8a29e1647c7f81d9b31045798464e336be1b00b3941
Threat Level: Known bad
The file a87f232e899ee4982c0df8a29e1647c7f81d9b31045798464e336be1b00b3941 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 SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of FindShellTrayWindow
Checks processor information in registry
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-11 21:43
Signatures
Suspicious Office macro
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-11 21:43
Reported
2024-11-11 21:45
Platform
win10v2004-20241007-en
Max time kernel
133s
Max time network
139s
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 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 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 3916 wrote to memory of 3212 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 3916 wrote to memory of 3212 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 3916 wrote to memory of 3212 | 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\a87f232e899ee4982c0df8a29e1647c7f81d9b31045798464e336be1b00b3941.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 | 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 |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.32.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 129.68.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 89.211.18.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.31.126.40.in-addr.arpa | udp |
| GB | 142.250.187.227:80 | c.pki.goog | tcp |
| 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 | www.greycoconut.com | udp |
| IN | 180.149.241.246:80 | www.greycoconut.com | tcp |
| US | 8.8.8.8:53 | 200.156.110.200.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 246.241.149.180.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.173.189.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 105.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
Files
memory/3916-0-0x00007FFAA70D0000-0x00007FFAA70E0000-memory.dmp
memory/3916-2-0x00007FFAA70D0000-0x00007FFAA70E0000-memory.dmp
memory/3916-4-0x00007FFAA70D0000-0x00007FFAA70E0000-memory.dmp
memory/3916-3-0x00007FFAA70D0000-0x00007FFAA70E0000-memory.dmp
memory/3916-1-0x00007FFAE70ED000-0x00007FFAE70EE000-memory.dmp
memory/3916-5-0x00007FFAE7050000-0x00007FFAE7245000-memory.dmp
memory/3916-6-0x00007FFAA70D0000-0x00007FFAA70E0000-memory.dmp
memory/3916-9-0x00007FFAE7050000-0x00007FFAE7245000-memory.dmp
memory/3916-8-0x00007FFAE7050000-0x00007FFAE7245000-memory.dmp
memory/3916-7-0x00007FFAE7050000-0x00007FFAE7245000-memory.dmp
memory/3916-10-0x00007FFAA4F20000-0x00007FFAA4F30000-memory.dmp
memory/3916-11-0x00007FFAA4F20000-0x00007FFAA4F30000-memory.dmp
C:\Users\Admin\txdn.dll
| MD5 | 3b79e62476916ff33ddc0668a0898e6d |
| SHA1 | fe4f73a8019a0407cec5e2eb0c344adc4ab73bae |
| SHA256 | 418099d0e61f486fc52144bd0b16c8833b893eb9203163835c59045ca9782b81 |
| SHA512 | 3b42ec3d6c8d68824e43ea8bd0b62c4434fd995f8dc93c3a278e229168b080c5920b226c02236bd98cd7ddadab19536dd05a4e4f35323393ac9ef766b0759bfa |
memory/3916-33-0x00007FFAE7050000-0x00007FFAE7245000-memory.dmp
memory/3916-34-0x00007FFAE70ED000-0x00007FFAE70EE000-memory.dmp
memory/3916-35-0x00007FFAE7050000-0x00007FFAE7245000-memory.dmp
memory/3916-36-0x00007FFAE7050000-0x00007FFAE7245000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
| MD5 | 89e2004d6bbb433f0ea146d1d1e19af8 |
| SHA1 | f7bb44608e7d47e741dd931df134b493c57edb6c |
| SHA256 | 80bf93f67bb0e0ce8d82fc3220a3ff3402c59347a7bd20d958ffc5f2e505fac2 |
| SHA512 | afd4e00ad2b8a0e54199ffe506aecf92caa43c9f900fff93b46b40229be73f6f209b881d4b3b8c5491f2edf413b5637d78a39108d7d9efcefe9bf5e4469f9786 |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-11 21:43
Reported
2024-11-11 21:45
Platform
win7-20241010-en
Max time kernel
143s
Max time network
153s
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 1736 wrote to memory of 2852 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 1736 wrote to memory of 2852 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 1736 wrote to memory of 2852 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 1736 wrote to memory of 2852 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 1736 wrote to memory of 2852 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 1736 wrote to memory of 2852 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWow64\regsvr32.exe |
| PID 1736 wrote to memory of 2852 | 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\a87f232e899ee4982c0df8a29e1647c7f81d9b31045798464e336be1b00b3941.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 | 142.250.187.227:80 | 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 |
Files
memory/1736-1-0x0000000072C3D000-0x0000000072C48000-memory.dmp
memory/1736-0-0x000000005FFF0000-0x0000000060000000-memory.dmp
C:\Users\Admin\txdn.dll
| MD5 | 3b79e62476916ff33ddc0668a0898e6d |
| SHA1 | fe4f73a8019a0407cec5e2eb0c344adc4ab73bae |
| SHA256 | 418099d0e61f486fc52144bd0b16c8833b893eb9203163835c59045ca9782b81 |
| SHA512 | 3b42ec3d6c8d68824e43ea8bd0b62c4434fd995f8dc93c3a278e229168b080c5920b226c02236bd98cd7ddadab19536dd05a4e4f35323393ac9ef766b0759bfa |
memory/1736-23-0x0000000072C3D000-0x0000000072C48000-memory.dmp