Analysis Overview
SHA256
81edbbd0fb9f019847a29b1615cb9a0b14cffe19f0758ef80d3342218a2ef0dc
Threat Level: Known bad
The file 81edbbd0fb9f019847a29b1615cb9a0b14cffe19f0758ef80d3342218a2ef0dc was found to be: Known bad.
Malicious Activity Summary
Process spawned unexpected child process
Suspicious Office macro
System Location Discovery: System Language Discovery
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: AddClipboardFormatListener
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
137s
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 |
| 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 |
| 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
| 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 956 wrote to memory of 1788 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\System32\regsvr32.exe |
| PID 956 wrote to memory of 1788 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\System32\regsvr32.exe |
| PID 956 wrote to memory of 892 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\System32\regsvr32.exe |
| PID 956 wrote to memory of 892 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\System32\regsvr32.exe |
| PID 956 wrote to memory of 1988 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\System32\regsvr32.exe |
| PID 956 wrote to memory of 1988 | 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\81edbbd0fb9f019847a29b1615cb9a0b14cffe19f0758ef80d3342218a2ef0dc.xls"
C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\cusoa1.ocx
C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\cusoa2.ocx
C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\cusoa3.ocx
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 154.239.44.20.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 | strachanclark.com | udp |
| US | 172.67.192.7:443 | strachanclark.com | tcp |
| US | 8.8.8.8:53 | c.pki.goog | udp |
| GB | 142.250.187.195:80 | c.pki.goog | tcp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 46.28.109.52.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 | 2.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 7.192.67.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | synapse-archive.com | udp |
| US | 69.174.52.216:443 | synapse-archive.com | tcp |
| US | 69.174.52.216:443 | synapse-archive.com | tcp |
| US | 8.8.8.8:53 | 216.52.174.69.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.149.64.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | sumuvesa.com | udp |
| ES | 82.223.70.21:443 | sumuvesa.com | tcp |
| US | 8.8.8.8:53 | r10.o.lencr.org | udp |
| GB | 2.23.210.82:80 | r10.o.lencr.org | tcp |
| US | 8.8.8.8:53 | 21.70.223.82.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 32.169.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 82.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 213.143.182.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 212.20.149.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 27.117.19.2.in-addr.arpa | udp |
Files
memory/956-0-0x00007FFDFF6ED000-0x00007FFDFF6EE000-memory.dmp
memory/956-1-0x00007FFDBF6D0000-0x00007FFDBF6E0000-memory.dmp
memory/956-3-0x00007FFDBF6D0000-0x00007FFDBF6E0000-memory.dmp
memory/956-2-0x00007FFDBF6D0000-0x00007FFDBF6E0000-memory.dmp
memory/956-4-0x00007FFDBF6D0000-0x00007FFDBF6E0000-memory.dmp
memory/956-6-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp
memory/956-7-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp
memory/956-9-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp
memory/956-10-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp
memory/956-11-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp
memory/956-8-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp
memory/956-13-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp
memory/956-12-0x00007FFDBD370000-0x00007FFDBD380000-memory.dmp
memory/956-14-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp
memory/956-17-0x00007FFDBD370000-0x00007FFDBD380000-memory.dmp
memory/956-19-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp
memory/956-18-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp
memory/956-16-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp
memory/956-15-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp
memory/956-5-0x00007FFDBF6D0000-0x00007FFDBF6E0000-memory.dmp
memory/956-47-0x00007FFDFF6ED000-0x00007FFDFF6EE000-memory.dmp
memory/956-48-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp
memory/956-49-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp
memory/956-50-0x00007FFDFF650000-0x00007FFDFF845000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
| MD5 | 691d18e31d168800948dd8feab2a1662 |
| SHA1 | 62517ebd7e0539f5f31e18f52caa212634acd6cf |
| SHA256 | dfad55ebf4d2c32a3392373d47a361ceb6dceea68cb4290fc1134d8a838fc5b1 |
| SHA512 | c2cbb5cc4d899811cb837d452b4451dcf9b1f86a7676a0529f8d81c1a876f1ee42afdaa26e9bb8b9d9bb040a2ba4c18085281252a59441966a9e178bf0cbc894 |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-11 21:23
Reported
2024-11-11 21:25
Platform
win7-20240903-en
Max time kernel
118s
Max time network
119s
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 |
| 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 |
| 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:\Windows\SysWOW64\regsvr32.exe | N/A |
| 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 |
| 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
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\81edbbd0fb9f019847a29b1615cb9a0b14cffe19f0758ef80d3342218a2ef0dc.xls
C:\Windows\SysWOW64\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\cusoa1.ocx
C:\Windows\SysWOW64\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\cusoa2.ocx
C:\Windows\SysWOW64\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\cusoa3.ocx
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | strachanclark.com | udp |
| US | 104.21.20.90:443 | strachanclark.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 | synapse-archive.com | udp |
| US | 69.174.52.216:443 | synapse-archive.com | tcp |
| US | 8.8.8.8:53 | sumuvesa.com | udp |
| ES | 82.223.70.21:443 | sumuvesa.com | tcp |
| US | 8.8.8.8:53 | r10.o.lencr.org | udp |
| GB | 2.23.210.82:80 | r10.o.lencr.org | tcp |
| US | 8.8.8.8:53 | crl.microsoft.com | udp |
| GB | 2.19.117.22:80 | crl.microsoft.com | tcp |
Files
memory/2644-1-0x00000000728CD000-0x00000000728D8000-memory.dmp
memory/2644-0-0x000000005FFF0000-0x0000000060000000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\CabEB4C.tmp
| MD5 | 49aebf8cbd62d92ac215b2923fb1b9f5 |
| SHA1 | 1723be06719828dda65ad804298d0431f6aff976 |
| SHA256 | b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f |
| SHA512 | bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b |
C:\Users\Admin\AppData\Local\Temp\TarEBAC.tmp
| MD5 | 4ea6026cf93ec6338144661bf1202cd1 |
| SHA1 | a1dec9044f750ad887935a01430bf49322fbdcb7 |
| SHA256 | 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8 |
| SHA512 | 6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b |
memory/2644-61-0x00000000728CD000-0x00000000728D8000-memory.dmp