Analysis Overview
SHA256
b8f3c0e74fcf05c3cb59c8efceeb42938b126a904ab74773100e8e78843ad168
Threat Level: Known bad
The file b8f3c0e74fcf05c3cb59c8efceeb42938b126a904ab74773100e8e78843ad168 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 SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
Suspicious use of FindShellTrayWindow
Suspicious behavior: AddClipboardFormatListener
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-11 17:23
Signatures
Suspicious Office macro
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-11 17:23
Reported
2024-11-11 17:26
Platform
win7-20240903-en
Max time kernel
119s
Max time network
121s
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:\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 |
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\b8f3c0e74fcf05c3cb59c8efceeb42938b126a904ab74773100e8e78843ad168.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 | 2.23.210.75:80 | r10.o.lencr.org | tcp |
| US | 8.8.8.8:53 | crl.microsoft.com | udp |
| GB | 2.19.117.18:80 | crl.microsoft.com | tcp |
Files
memory/2364-1-0x000000007226D000-0x0000000072278000-memory.dmp
memory/2364-0-0x000000005FFF0000-0x0000000060000000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Cab1816.tmp
| MD5 | 49aebf8cbd62d92ac215b2923fb1b9f5 |
| SHA1 | 1723be06719828dda65ad804298d0431f6aff976 |
| SHA256 | b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f |
| SHA512 | bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b |
C:\Users\Admin\AppData\Local\Temp\Tar1876.tmp
| MD5 | 4ea6026cf93ec6338144661bf1202cd1 |
| SHA1 | a1dec9044f750ad887935a01430bf49322fbdcb7 |
| SHA256 | 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8 |
| SHA512 | 6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b |
memory/2364-65-0x000000007226D000-0x0000000072278000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-11 17:23
Reported
2024-11-11 17:26
Platform
win10v2004-20241007-en
Max time kernel
150s
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\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 1232 wrote to memory of 2320 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\System32\regsvr32.exe |
| PID 1232 wrote to memory of 2320 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\System32\regsvr32.exe |
| PID 1232 wrote to memory of 4032 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\System32\regsvr32.exe |
| PID 1232 wrote to memory of 4032 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\System32\regsvr32.exe |
| PID 1232 wrote to memory of 1184 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\System32\regsvr32.exe |
| PID 1232 wrote to memory of 1184 | 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\b8f3c0e74fcf05c3cb59c8efceeb42938b126a904ab74773100e8e78843ad168.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 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 46.28.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.208.201.84.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 | 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 | 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 | 90.20.21.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 74.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | synapse-archive.com | udp |
| US | 69.174.52.216:443 | synapse-archive.com | tcp |
| US | 8.8.8.8:53 | 227.187.250.142.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 | 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 | 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 | 253.15.104.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | udp |
Files
memory/1232-0-0x00007FF96A5ED000-0x00007FF96A5EE000-memory.dmp
memory/1232-3-0x00007FF92A5D0000-0x00007FF92A5E0000-memory.dmp
memory/1232-4-0x00007FF92A5D0000-0x00007FF92A5E0000-memory.dmp
memory/1232-5-0x00007FF92A5D0000-0x00007FF92A5E0000-memory.dmp
memory/1232-9-0x00007FF96A550000-0x00007FF96A745000-memory.dmp
memory/1232-8-0x00007FF96A550000-0x00007FF96A745000-memory.dmp
memory/1232-7-0x00007FF96A550000-0x00007FF96A745000-memory.dmp
memory/1232-6-0x00007FF96A550000-0x00007FF96A745000-memory.dmp
memory/1232-2-0x00007FF92A5D0000-0x00007FF92A5E0000-memory.dmp
memory/1232-1-0x00007FF92A5D0000-0x00007FF92A5E0000-memory.dmp
memory/1232-13-0x00007FF96A550000-0x00007FF96A745000-memory.dmp
memory/1232-15-0x00007FF96A550000-0x00007FF96A745000-memory.dmp
memory/1232-14-0x00007FF96A550000-0x00007FF96A745000-memory.dmp
memory/1232-16-0x00007FF928160000-0x00007FF928170000-memory.dmp
memory/1232-12-0x00007FF96A550000-0x00007FF96A745000-memory.dmp
memory/1232-11-0x00007FF96A550000-0x00007FF96A745000-memory.dmp
memory/1232-17-0x00007FF928160000-0x00007FF928170000-memory.dmp
memory/1232-10-0x00007FF96A550000-0x00007FF96A745000-memory.dmp
memory/1232-45-0x00007FF96A550000-0x00007FF96A745000-memory.dmp
memory/1232-46-0x00007FF96A5ED000-0x00007FF96A5EE000-memory.dmp
memory/1232-47-0x00007FF96A550000-0x00007FF96A745000-memory.dmp
memory/1232-48-0x00007FF96A550000-0x00007FF96A745000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
| MD5 | 645c0b4b4a4c43a591958af8c847f260 |
| SHA1 | 1e1a342cac51109302c8084dccd38c5f34bd7494 |
| SHA256 | 0c36100009a2fb8635b6872f3cb90d45fc84fb00ed71f8f7ba9fcb39532bdabb |
| SHA512 | d512bf589b470317b28cd9c81802f71beb509846dd895b67e6b746eb9a916f226db51511ba24267894042cb1a6a74df95c23635152c8e1b18e5176e7c2fb3073 |