Analysis Overview
SHA256
0b550e3a7a1b081aa044287270af2ab82c9533077a4ebcf2fabcd46c8fe719b6
Threat Level: Known bad
The file 0b550e3a7a1b081aa044287270af2ab82c9533077a4ebcf2fabcd46c8fe719b6 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 WriteProcessMemory
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Checks processor information in registry
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-11 16:39
Signatures
Suspicious Office macro
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-11 16:39
Reported
2024-11-11 16:41
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 |
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 |
| 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 2100 wrote to memory of 2608 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWOW64\regsvr32.exe |
| PID 2100 wrote to memory of 2608 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWOW64\regsvr32.exe |
| PID 2100 wrote to memory of 2608 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWOW64\regsvr32.exe |
| PID 2100 wrote to memory of 2608 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWOW64\regsvr32.exe |
| PID 2100 wrote to memory of 2608 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWOW64\regsvr32.exe |
| PID 2100 wrote to memory of 2608 | N/A | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | C:\Windows\SysWOW64\regsvr32.exe |
| PID 2100 wrote to memory of 2608 | 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\0b550e3a7a1b081aa044287270af2ab82c9533077a4ebcf2fabcd46c8fe719b6.xls
C:\Windows\SysWOW64\regsvr32.exe
regsvr32.exe ..\wnrul.ocx
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | www.escueladecinemza.com.ar | udp |
| AR | 179.43.117.122:443 | www.escueladecinemza.com.ar | tcp |
| US | 8.8.8.8:53 | r10.o.lencr.org | udp |
| GB | 2.23.210.82:80 | r10.o.lencr.org | tcp |
| AR | 179.43.117.122:80 | www.escueladecinemza.com.ar | tcp |
| AR | 179.43.117.122:443 | www.escueladecinemza.com.ar | tcp |
| US | 8.8.8.8:53 | escueladecinemza.com.ar | udp |
| AR | 179.43.117.122:443 | escueladecinemza.com.ar | tcp |
| US | 8.8.8.8:53 | crl.microsoft.com | udp |
| GB | 2.19.117.22:80 | crl.microsoft.com | tcp |
Files
memory/2100-0-0x000000005FFF0000-0x0000000060000000-memory.dmp
memory/2100-1-0x00000000725ED000-0x00000000725F8000-memory.dmp
C:\Users\Admin\wnrul.ocx
| MD5 | 3ffd9a2715e478a2442c309536507f93 |
| SHA1 | 1d3a2db3cf0e80f972084f0d83adbf7f77578f75 |
| SHA256 | 35e3dd8043744d5c6ea3f008188d397312d355ada64cbed3b2c641daf28f5ae3 |
| SHA512 | 311c4b871903a69053910b65e01285d181659d1117d9e5332c12ad801a3d9f5087ae7ae9ecfe507121126205bcb5b40debfc6589715b8ccfed6e8e7cfe6317b9 |
memory/2100-21-0x00000000725ED000-0x00000000725F8000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-11 16:39
Reported
2024-11-11 16:41
Platform
win10v2004-20241007-en
Max time kernel
148s
Max time network
149s
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 |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| 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 |
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
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 696 wrote to memory of 2372 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\SYSTEM32\regsvr32.exe |
| PID 696 wrote to memory of 2372 | 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\0b550e3a7a1b081aa044287270af2ab82c9533077a4ebcf2fabcd46c8fe719b6.xls"
C:\Windows\SYSTEM32\regsvr32.exe
regsvr32.exe ..\wnrul.ocx
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 217.106.137.52.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 | www.escueladecinemza.com.ar | udp |
| US | 8.8.8.8:53 | 46.28.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.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 |
| AR | 179.43.117.122:443 | www.escueladecinemza.com.ar | 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 | 76.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 122.117.43.179.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 32.169.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.210.23.2.in-addr.arpa | udp |
| AR | 179.43.117.122:80 | www.escueladecinemza.com.ar | tcp |
| AR | 179.43.117.122:443 | www.escueladecinemza.com.ar | tcp |
| US | 8.8.8.8:53 | escueladecinemza.com.ar | udp |
| AR | 179.43.117.122:443 | escueladecinemza.com.ar | tcp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 224.162.46.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 30.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.236.111.52.in-addr.arpa | udp |
Files
memory/696-1-0x00007FFCE634D000-0x00007FFCE634E000-memory.dmp
memory/696-2-0x00007FFCA6330000-0x00007FFCA6340000-memory.dmp
memory/696-3-0x00007FFCA6330000-0x00007FFCA6340000-memory.dmp
memory/696-0-0x00007FFCA6330000-0x00007FFCA6340000-memory.dmp
memory/696-6-0x00007FFCE62B0000-0x00007FFCE64A5000-memory.dmp
memory/696-5-0x00007FFCE62B0000-0x00007FFCE64A5000-memory.dmp
memory/696-7-0x00007FFCA6330000-0x00007FFCA6340000-memory.dmp
memory/696-4-0x00007FFCA6330000-0x00007FFCA6340000-memory.dmp
memory/696-9-0x00007FFCE62B0000-0x00007FFCE64A5000-memory.dmp
memory/696-8-0x00007FFCE62B0000-0x00007FFCE64A5000-memory.dmp
memory/696-10-0x00007FFCA40B0000-0x00007FFCA40C0000-memory.dmp
memory/696-12-0x00007FFCE62B0000-0x00007FFCE64A5000-memory.dmp
memory/696-11-0x00007FFCE62B0000-0x00007FFCE64A5000-memory.dmp
memory/696-13-0x00007FFCA40B0000-0x00007FFCA40C0000-memory.dmp
C:\Users\Admin\wnrul.ocx
| MD5 | 3ffd9a2715e478a2442c309536507f93 |
| SHA1 | 1d3a2db3cf0e80f972084f0d83adbf7f77578f75 |
| SHA256 | 35e3dd8043744d5c6ea3f008188d397312d355ada64cbed3b2c641daf28f5ae3 |
| SHA512 | 311c4b871903a69053910b65e01285d181659d1117d9e5332c12ad801a3d9f5087ae7ae9ecfe507121126205bcb5b40debfc6589715b8ccfed6e8e7cfe6317b9 |
memory/696-35-0x00007FFCE62B0000-0x00007FFCE64A5000-memory.dmp
memory/696-36-0x00007FFCE634D000-0x00007FFCE634E000-memory.dmp
memory/696-37-0x00007FFCE62B0000-0x00007FFCE64A5000-memory.dmp
memory/696-38-0x00007FFCE62B0000-0x00007FFCE64A5000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
| MD5 | 9af1fbc3d3158a30a797a0f773d24251 |
| SHA1 | 783670400768bd5f7a7d2460a745af0f75a6c807 |
| SHA256 | e71695c648650d2ae756cda451453cdf9fc85ad5d1f1942f45bb541d7f3f3d9c |
| SHA512 | d4208118b6ebdf5dca8b119ddf352d5b9f87716f2eb51fa2c1cc1668b91689716b0a3660b9056fc488555aee760d33bdad71f0948636f6c27e54bd4b2c24afba |