Analysis Overview
SHA256
62bfcfccce59854a16e8817060b75c86977c900043958a9eebeeb9bf51877579
Threat Level: Known bad
The file 2a8ad569d0f6d94fb0f51fb3ff2091df was found to be: Known bad.
Malicious Activity Summary
Process spawned unexpected child process
Suspicious Office macro
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates system info in registry
Modifies Internet Explorer settings
Checks processor information in registry
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious use of FindShellTrayWindow
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-12-31 05:45
Signatures
Suspicious Office macro
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-12-31 05:45
Reported
2024-01-02 08:56
Platform
win7-20231129-en
Max time kernel
0s
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\rundll32.exe | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE |
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\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 (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\Se&nd to OneNote\Contexts = "55" | C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.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\2a8ad569d0f6d94fb0f51fb3ff2091df.xls
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Users\Public\Documents\KqO.txt,DllRegisterServer
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | syracuse.best | udp |
| US | 8.8.8.8:53 | skill.fashion | udp |
Files
memory/2368-0-0x000000005FFF0000-0x0000000060000000-memory.dmp
memory/2368-1-0x00000000727DD000-0x00000000727E8000-memory.dmp
memory/2368-2-0x00000000727DD000-0x00000000727E8000-memory.dmp
memory/2368-3-0x000000005FFF0000-0x0000000060000000-memory.dmp
memory/2368-4-0x00000000727DD000-0x00000000727E8000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-12-31 05:45
Reported
2024-01-02 08:57
Platform
win10v2004-20231215-en
Max time kernel
175s
Max time network
188s
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\explorer.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 |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000_Classes\Local Settings | C:\Windows\explorer.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 920 wrote to memory of 2552 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\explorer.exe |
| PID 920 wrote to memory of 2552 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\explorer.exe |
| PID 3636 wrote to memory of 2484 | N/A | C:\Windows\explorer.exe | C:\Windows\System32\WScript.exe |
| PID 3636 wrote to memory of 2484 | N/A | C:\Windows\explorer.exe | C:\Windows\System32\WScript.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\2a8ad569d0f6d94fb0f51fb3ff2091df.xls"
C:\Windows\explorer.exe
explorer.exe C:\Users\Public\Documents\cTyJWv.vbs
C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\cTyJWv.vbs"
Network
| Country | Destination | Domain | Proto |
| US | 138.91.171.81:80 | tcp | |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 46.28.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 187.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.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 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | syracuse.best | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 158.240.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 137.71.105.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 208.194.73.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.171.91.138.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.241.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.173.189.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 176.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.134.221.88.in-addr.arpa | udp |
Files
memory/920-0-0x00007FF8DAE30000-0x00007FF8DAE40000-memory.dmp
memory/920-1-0x00007FF8DAE30000-0x00007FF8DAE40000-memory.dmp
memory/920-2-0x00007FF8DAE30000-0x00007FF8DAE40000-memory.dmp
memory/920-4-0x00007FF8DAE30000-0x00007FF8DAE40000-memory.dmp
memory/920-3-0x00007FF91ADB0000-0x00007FF91AFA5000-memory.dmp
memory/920-5-0x00007FF8DAE30000-0x00007FF8DAE40000-memory.dmp
memory/920-6-0x00007FF91ADB0000-0x00007FF91AFA5000-memory.dmp
memory/920-7-0x00007FF91ADB0000-0x00007FF91AFA5000-memory.dmp
memory/920-9-0x00007FF91ADB0000-0x00007FF91AFA5000-memory.dmp
memory/920-11-0x00007FF91ADB0000-0x00007FF91AFA5000-memory.dmp
memory/920-10-0x00007FF8D8BC0000-0x00007FF8D8BD0000-memory.dmp
memory/920-13-0x00007FF91ADB0000-0x00007FF91AFA5000-memory.dmp
memory/920-14-0x00007FF91ADB0000-0x00007FF91AFA5000-memory.dmp
memory/920-15-0x00007FF91ADB0000-0x00007FF91AFA5000-memory.dmp
memory/920-16-0x00007FF91ADB0000-0x00007FF91AFA5000-memory.dmp
memory/920-17-0x00007FF91ADB0000-0x00007FF91AFA5000-memory.dmp
memory/920-12-0x00007FF91ADB0000-0x00007FF91AFA5000-memory.dmp
memory/920-19-0x00007FF91ADB0000-0x00007FF91AFA5000-memory.dmp
memory/920-20-0x00007FF91ADB0000-0x00007FF91AFA5000-memory.dmp
memory/920-22-0x00007FF91ADB0000-0x00007FF91AFA5000-memory.dmp
memory/920-21-0x00007FF91ADB0000-0x00007FF91AFA5000-memory.dmp
memory/920-23-0x00007FF8D8BC0000-0x00007FF8D8BD0000-memory.dmp
memory/920-18-0x00007FF91ADB0000-0x00007FF91AFA5000-memory.dmp
memory/920-8-0x00007FF91ADB0000-0x00007FF91AFA5000-memory.dmp
C:\Users\Public\Documents\cTyJWv.vbs
| MD5 | 2073c9c2b52021801934f01a2004be05 |
| SHA1 | e660ee134d355cd8325b21b71669de14a6b783c5 |
| SHA256 | 1b3ce14316a8b9619840141cceef98a0ad951b70a504f3b5486783b5aa301dde |
| SHA512 | aa38a26944ffd0c84cf402e0897d112c787d3647919670270627c4c082ebdba7f3ea2766ffe9c2fce6920ec14771945498cb817442ba7bb6d96c416986f4cf11 |
memory/920-35-0x00007FF91ADB0000-0x00007FF91AFA5000-memory.dmp