Analysis Overview
SHA256
3f7effc8c02200e690f251a4d883589c75f7ef1f1af1ab97f95d0358b93b6e8d
Threat Level: Known bad
The file 1dbc8a6260a6270e95f405d3cd937d30 was found to be: Known bad.
Malicious Activity Summary
Process spawned unexpected child process
Suspicious Office macro
Office loads VBA resources, possible macro or embedded object present
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Views/modifies file attributes
Enumerates system info in registry
Modifies Internet Explorer settings
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-12-30 21:55
Signatures
Suspicious Office macro
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-12-30 21:55
Reported
2024-01-01 07:43
Platform
win7-20231129-en
Max time kernel
1s
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\cmd.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\cmd.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\cmd.exe | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE |
Office loads VBA resources, possible macro or embedded object present
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 |
Modifies Internet Explorer settings
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Toolbar | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\MenuExt | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" | 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
Views/modifies file attributes
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
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\1dbc8a6260a6270e95f405d3cd937d30.xls
C:\Windows\SysWOW64\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
Network
Files
memory/1108-0-0x000000005FFF0000-0x0000000060000000-memory.dmp
memory/1108-1-0x000000007222D000-0x0000000072238000-memory.dmp
memory/1108-17-0x0000000006310000-0x0000000006410000-memory.dmp
memory/1108-58-0x0000000006310000-0x0000000006410000-memory.dmp
memory/1108-60-0x0000000006310000-0x0000000006410000-memory.dmp
memory/1108-100-0x0000000006310000-0x0000000006410000-memory.dmp
memory/1108-102-0x0000000006310000-0x0000000006410000-memory.dmp
memory/1108-158-0x0000000006310000-0x0000000006410000-memory.dmp
memory/1108-214-0x0000000006310000-0x0000000006410000-memory.dmp
memory/1108-232-0x0000000006310000-0x0000000006410000-memory.dmp
memory/1108-184-0x0000000006310000-0x0000000006410000-memory.dmp
memory/1108-264-0x0000000006310000-0x0000000006410000-memory.dmp
memory/1108-265-0x000000007222D000-0x0000000072238000-memory.dmp
memory/1108-268-0x0000000006310000-0x0000000006410000-memory.dmp
memory/1108-311-0x0000000006310000-0x0000000006410000-memory.dmp
memory/1108-313-0x0000000006310000-0x0000000006410000-memory.dmp
memory/1108-315-0x0000000006310000-0x0000000006410000-memory.dmp
memory/1108-160-0x0000000006310000-0x0000000006410000-memory.dmp
memory/1108-342-0x0000000006310000-0x0000000006410000-memory.dmp
memory/1108-343-0x0000000006310000-0x0000000006410000-memory.dmp
memory/1108-344-0x0000000006310000-0x0000000006410000-memory.dmp
memory/1108-346-0x0000000006310000-0x0000000006410000-memory.dmp
memory/1108-345-0x0000000006310000-0x0000000006410000-memory.dmp
memory/1108-347-0x0000000006310000-0x0000000006410000-memory.dmp
memory/1108-350-0x000000005FFF0000-0x0000000060000000-memory.dmp
memory/1108-351-0x000000007222D000-0x0000000072238000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-12-30 21:55
Reported
2024-01-01 07:44
Platform
win10v2004-20231215-en
Max time kernel
0s
Max time network
152s
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\cmd.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\cmd.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\cmd.exe | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE |
Views/modifies file attributes
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\attrib.exe | N/A |
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\1dbc8a6260a6270e95f405d3cd937d30.xls"
C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 178.223.142.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 173.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.76.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 146.78.124.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 158.240.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.179.89.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 174.178.17.96.in-addr.arpa | udp |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| US | 52.111.227.14:443 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| GB | 88.221.135.211:80 | tcp |
Files
memory/4268-0-0x00007FFEC55B0000-0x00007FFEC55C0000-memory.dmp
memory/4268-4-0x00007FFEC55B0000-0x00007FFEC55C0000-memory.dmp
memory/4268-8-0x00007FFEC55B0000-0x00007FFEC55C0000-memory.dmp
memory/4268-11-0x00007FFEC33F0000-0x00007FFEC3400000-memory.dmp
memory/4268-14-0x00007FFF05530000-0x00007FFF05725000-memory.dmp
memory/4268-17-0x00007FFF05530000-0x00007FFF05725000-memory.dmp
memory/4268-16-0x00007FFEC33F0000-0x00007FFEC3400000-memory.dmp
memory/4268-19-0x00007FFF05530000-0x00007FFF05725000-memory.dmp
memory/4268-21-0x00007FFF05530000-0x00007FFF05725000-memory.dmp
memory/4268-20-0x00007FFF05530000-0x00007FFF05725000-memory.dmp
memory/4268-18-0x00007FFF05530000-0x00007FFF05725000-memory.dmp
memory/4268-15-0x00007FFF05530000-0x00007FFF05725000-memory.dmp
memory/4268-13-0x00007FFF05530000-0x00007FFF05725000-memory.dmp
memory/4268-12-0x00007FFF05530000-0x00007FFF05725000-memory.dmp
memory/4268-10-0x00007FFF05530000-0x00007FFF05725000-memory.dmp
memory/4268-9-0x00007FFF05530000-0x00007FFF05725000-memory.dmp
memory/4268-7-0x00007FFF05530000-0x00007FFF05725000-memory.dmp
memory/4268-6-0x00007FFEC55B0000-0x00007FFEC55C0000-memory.dmp
memory/4268-5-0x00007FFF05530000-0x00007FFF05725000-memory.dmp
memory/4268-3-0x00007FFF05530000-0x00007FFF05725000-memory.dmp
memory/4268-2-0x00007FFEC55B0000-0x00007FFEC55C0000-memory.dmp
memory/4268-1-0x00007FFF05530000-0x00007FFF05725000-memory.dmp
memory/4268-29-0x0000013BEE0B0000-0x0000013BEE8B0000-memory.dmp
memory/4268-41-0x0000013BEE0B0000-0x0000013BEE8B0000-memory.dmp
memory/4268-42-0x0000013BEE0B0000-0x0000013BEE8B0000-memory.dmp
memory/4268-43-0x0000013BF3430000-0x0000013BF4400000-memory.dmp
memory/4268-44-0x0000013BF3430000-0x0000013BF4400000-memory.dmp
memory/4268-48-0x0000013BF3430000-0x0000013BF4400000-memory.dmp
memory/4268-54-0x0000013BF3430000-0x0000013BF4400000-memory.dmp
memory/4268-55-0x0000013BF3430000-0x0000013BF4400000-memory.dmp
memory/4268-56-0x0000013BF3430000-0x0000013BF4400000-memory.dmp
memory/4268-53-0x0000013BF3430000-0x0000013BF4400000-memory.dmp
memory/4268-57-0x00007FFF05530000-0x00007FFF05725000-memory.dmp
memory/4268-58-0x0000013BEE0B0000-0x0000013BEE8B0000-memory.dmp
memory/4268-59-0x0000013BEE0B0000-0x0000013BEE8B0000-memory.dmp
memory/4268-60-0x0000013BEE0B0000-0x0000013BEE8B0000-memory.dmp
memory/4268-61-0x0000013BF3430000-0x0000013BF4400000-memory.dmp
memory/4268-62-0x0000013BF3430000-0x0000013BF4400000-memory.dmp
memory/4268-63-0x0000013BF3430000-0x0000013BF4400000-memory.dmp
memory/4268-64-0x0000013BF3430000-0x0000013BF4400000-memory.dmp
memory/4268-77-0x0000013BEE0B0000-0x0000013BEE8B0000-memory.dmp
memory/4268-121-0x0000013BEE0B0000-0x0000013BEE8B0000-memory.dmp
memory/4268-140-0x00007FFF05530000-0x00007FFF05725000-memory.dmp
memory/4268-139-0x00007FFEC55B0000-0x00007FFEC55C0000-memory.dmp
memory/4268-138-0x00007FFEC55B0000-0x00007FFEC55C0000-memory.dmp
memory/4268-137-0x00007FFEC55B0000-0x00007FFEC55C0000-memory.dmp
memory/4268-136-0x00007FFEC55B0000-0x00007FFEC55C0000-memory.dmp