Analysis Overview
SHA256
8d749fb149929dd889c9a641e3c4e77eb1ed15d59522d7874251d799b8a469a4
Threat Level: Known bad
The file 8d749fb149929dd889c9a641e3c4e77eb1ed15d59522d7874251d799b8a469a4 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 WriteProcessMemory
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-06 21:57
Signatures
Suspicious Office macro
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-06 21:57
Reported
2024-11-06 21:58
Platform
win10v2004-20241007-en
Max time kernel
46s
Max time network
35s
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 |
| 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 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 |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily | 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 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
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\8d749fb149929dd889c9a641e3c4e77eb1ed15d59522d7874251d799b8a469a4.xls"
C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
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 | 97.32.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | roaming.officeapps.live.com | udp |
| IE | 52.109.76.243:443 | roaming.officeapps.live.com | tcp |
| US | 8.8.8.8:53 | app.clubdedocentes.com | udp |
| US | 108.167.141.132:80 | app.clubdedocentes.com | tcp |
| US | 8.8.8.8:53 | educareclubdedocentes.com | udp |
| US | 172.67.205.226:443 | educareclubdedocentes.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 | 243.76.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 132.141.167.108.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 226.205.67.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 227.187.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | linhkiendoc.com | udp |
| US | 3.33.251.168:80 | linhkiendoc.com | tcp |
| US | 8.8.8.8:53 | sourcecool.com | udp |
| CN | 101.42.229.123:80 | sourcecool.com | tcp |
| US | 8.8.8.8:53 | 168.251.33.3.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 201.64.52.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.stickers-et-deco.com | udp |
| US | 172.67.220.221:80 | www.stickers-et-deco.com | tcp |
| US | 8.8.8.8:53 | 221.220.67.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 69.190.18.2.in-addr.arpa | udp |
Files
memory/1028-1-0x00007FFF476CD000-0x00007FFF476CE000-memory.dmp
memory/1028-0-0x00007FFF076B0000-0x00007FFF076C0000-memory.dmp
memory/1028-2-0x00007FFF076B0000-0x00007FFF076C0000-memory.dmp
memory/1028-3-0x00007FFF076B0000-0x00007FFF076C0000-memory.dmp
memory/1028-4-0x00007FFF076B0000-0x00007FFF076C0000-memory.dmp
memory/1028-5-0x00007FFF076B0000-0x00007FFF076C0000-memory.dmp
memory/1028-6-0x00007FFF47630000-0x00007FFF47825000-memory.dmp
memory/1028-8-0x00007FFF47630000-0x00007FFF47825000-memory.dmp
memory/1028-7-0x00007FFF47630000-0x00007FFF47825000-memory.dmp
memory/1028-11-0x00007FFF47630000-0x00007FFF47825000-memory.dmp
memory/1028-13-0x00007FFF47630000-0x00007FFF47825000-memory.dmp
memory/1028-12-0x00007FFF47630000-0x00007FFF47825000-memory.dmp
memory/1028-14-0x00007FFF04DB0000-0x00007FFF04DC0000-memory.dmp
memory/1028-10-0x00007FFF47630000-0x00007FFF47825000-memory.dmp
memory/1028-15-0x00007FFF04DB0000-0x00007FFF04DC0000-memory.dmp
memory/1028-16-0x00007FFF47630000-0x00007FFF47825000-memory.dmp
memory/1028-9-0x00007FFF47630000-0x00007FFF47825000-memory.dmp
memory/1028-35-0x00007FFF47630000-0x00007FFF47825000-memory.dmp
memory/1028-36-0x00007FFF476CD000-0x00007FFF476CE000-memory.dmp
memory/1028-37-0x00007FFF47630000-0x00007FFF47825000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
| MD5 | 42e95cc3f5a30a84f1f4bfdc5ea8ff8c |
| SHA1 | 25d89c2e6d72183a04e1b123ae0d9c5372c0f4e1 |
| SHA256 | da6136a425e38fe9e0fe0f16b9552ca8b92c8ecc1cb3929be6eda43c400cdb73 |
| SHA512 | 1c6e9db593be69ef2c771f5849e4dfd91c0442aec428c15b81733d5fee45011b20683a7a176f88447ac42f8db73e4da6e2a89edef583118256a3e657a21b71bb |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-06 21:57
Reported
2024-11-06 21:58
Platform
win7-20240903-en
Max time kernel
34s
Max time network
33s
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 |
| 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 |
| 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:\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\8d749fb149929dd889c9a641e3c4e77eb1ed15d59522d7874251d799b8a469a4.xls
C:\Windows\SysWOW64\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
C:\Windows\SysWOW64\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
C:\Windows\SysWOW64\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
C:\Windows\SysWOW64\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | app.clubdedocentes.com | udp |
| US | 108.167.141.132:80 | app.clubdedocentes.com | tcp |
| US | 8.8.8.8:53 | educareclubdedocentes.com | udp |
| US | 172.67.205.226:443 | educareclubdedocentes.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 | linhkiendoc.com | udp |
| US | 3.33.251.168:80 | linhkiendoc.com | tcp |
| US | 8.8.8.8:53 | sourcecool.com | udp |
| CN | 101.42.229.123:80 | sourcecool.com | tcp |
| US | 8.8.8.8:53 | www.stickers-et-deco.com | udp |
| US | 104.21.24.221:80 | www.stickers-et-deco.com | tcp |
| US | 8.8.8.8:53 | crl.microsoft.com | udp |
| GB | 2.19.117.18:80 | crl.microsoft.com | tcp |
Files
memory/2748-0-0x000000005FFF0000-0x0000000060000000-memory.dmp
memory/2748-1-0x000000007256D000-0x0000000072578000-memory.dmp
memory/2748-18-0x000000007256D000-0x0000000072578000-memory.dmp