Analysis Overview
SHA256
b8c1f06dbbe199412a19a58f60b46e4b94641a392d1fdafcb378ed26e9e537b4
Threat Level: Known bad
The file UUIW_99950751.zip was found to be: Known bad.
Malicious Activity Summary
Process spawned unexpected child process
Emotet
Suspicious Office macro
Office macro that triggers on suspicious action
Loads dropped DLL
Adds Run key to start application
Suspicious use of SetWindowsHookEx
Checks processor information in registry
Enumerates system info in registry
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: AddClipboardFormatListener
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-03-08 06:15
Signatures
Office macro that triggers on suspicious action
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Suspicious Office macro
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-03-08 06:14
Reported
2023-03-08 06:18
Platform
win10v2004-20230221-en
Max time kernel
145s
Max time network
153s
Command Line
Signatures
Emotet
Process spawned unexpected child process
| Description | Indicator | Process | Target |
| Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process | N/A | C:\Windows\System32\regsvr32.exe | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\regsvr32.exe | N/A |
| N/A | N/A | C:\Windows\system32\regsvr32.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run | C:\Windows\system32\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gQoZYFZQ.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\IxqYEWXFwprGnX\\gQoZYFZQ.dll\"" | C:\Windows\system32\regsvr32.exe | N/A |
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\WINWORD.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.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\WINWORD.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
Script User-Agent
| Description | Indicator | Process | Target |
| HTTP User-Agent header | Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) | N/A | N/A |
Suspicious behavior: AddClipboardFormatListener
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\regsvr32.exe | N/A |
| N/A | N/A | C:\Windows\System32\regsvr32.exe | N/A |
| N/A | N/A | C:\Windows\system32\regsvr32.exe | N/A |
| N/A | N/A | C:\Windows\system32\regsvr32.exe | N/A |
| N/A | N/A | C:\Windows\system32\regsvr32.exe | N/A |
| N/A | N/A | C:\Windows\system32\regsvr32.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2744 wrote to memory of 1668 | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | C:\Windows\System32\regsvr32.exe |
| PID 2744 wrote to memory of 1668 | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | C:\Windows\System32\regsvr32.exe |
| PID 1668 wrote to memory of 3776 | N/A | C:\Windows\System32\regsvr32.exe | C:\Windows\system32\regsvr32.exe |
| PID 1668 wrote to memory of 3776 | N/A | C:\Windows\System32\regsvr32.exe | C:\Windows\system32\regsvr32.exe |
Processes
C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Invoice Copies 2023-03-07_1554, United States.doc" /o ""
C:\Windows\System32\regsvr32.exe
"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\071545.tmp"
C:\Windows\system32\regsvr32.exe
C:\Windows\system32\regsvr32.exe "C:\Windows\system32\IxqYEWXFwprGnX\gQoZYFZQ.dll"
Network
| Country | Destination | Domain | Proto |
| US | 52.137.108.250:443 | tcp | |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 210.81.184.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 226.101.242.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.97.242.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 139.238.32.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 24.32.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.dnautik.com | udp |
| RS | 195.252.110.130:80 | www.dnautik.com | tcp |
| US | 8.8.8.8:53 | 130.110.252.195.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 5.173.189.20.in-addr.arpa | udp |
| US | 52.182.141.63:443 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 8.8.8.8:53 | 64.13.109.52.in-addr.arpa | udp |
| US | 209.197.3.8:80 | tcp | |
| NL | 173.223.113.164:443 | tcp | |
| US | 8.8.8.8:53 | 177.238.32.23.in-addr.arpa | udp |
| FR | 91.121.146.47:8080 | 91.121.146.47 | tcp |
| US | 8.8.8.8:53 | 47.146.121.91.in-addr.arpa | udp |
Files
memory/2744-133-0x00007FFCB6010000-0x00007FFCB6020000-memory.dmp
memory/2744-134-0x00007FFCB6010000-0x00007FFCB6020000-memory.dmp
memory/2744-135-0x00007FFCB6010000-0x00007FFCB6020000-memory.dmp
memory/2744-136-0x00007FFCB6010000-0x00007FFCB6020000-memory.dmp
memory/2744-137-0x00007FFCB6010000-0x00007FFCB6020000-memory.dmp
memory/2744-138-0x00007FFCB3C70000-0x00007FFCB3C80000-memory.dmp
memory/2744-139-0x00007FFCB3C70000-0x00007FFCB3C80000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\071547.zip
| MD5 | 9ad186e479e35bab7859e974b0cbfd65 |
| SHA1 | 9a6191124de81354ffe01922e6348e6ab0830aee |
| SHA256 | c8861f1708199dd01294e6d66ebf2bb3951980e177ec646b15291999e6b6a291 |
| SHA512 | f6578eaefd8a6934a10f0089877494e5c68f2fcf4fb821a5f6f1195b38559fa3086f57a5eaabd0a3efd6c42b4278d6d80d67ce4a4d440e944f9b42da9bde3ecd |
C:\Users\Admin\AppData\Local\Temp\071545.tmp
| MD5 | 8467d39bd97385af80831fec91fc38bb |
| SHA1 | 27da57182e02b32adedbdea812d0107506e66a10 |
| SHA256 | 73b63b12507b780f6e37ebc5a86ddd75edaa88895c32b0e04a6d41ead78f77b4 |
| SHA512 | a340986c205891e4b64405b12e5286d945e05c3278ceaa9fc19523058b982247f9893796632410d50f81045c0a0a2788a5af7a0ffdc7d38c467c728e8a95042e |
C:\Users\Admin\AppData\Local\Temp\071545.tmp
| MD5 | 8467d39bd97385af80831fec91fc38bb |
| SHA1 | 27da57182e02b32adedbdea812d0107506e66a10 |
| SHA256 | 73b63b12507b780f6e37ebc5a86ddd75edaa88895c32b0e04a6d41ead78f77b4 |
| SHA512 | a340986c205891e4b64405b12e5286d945e05c3278ceaa9fc19523058b982247f9893796632410d50f81045c0a0a2788a5af7a0ffdc7d38c467c728e8a95042e |
memory/1668-177-0x0000000180000000-0x000000018002D000-memory.dmp
memory/1668-180-0x0000000000C30000-0x0000000000C31000-memory.dmp
C:\Windows\System32\IxqYEWXFwprGnX\gQoZYFZQ.dll
| MD5 | 8467d39bd97385af80831fec91fc38bb |
| SHA1 | 27da57182e02b32adedbdea812d0107506e66a10 |
| SHA256 | 73b63b12507b780f6e37ebc5a86ddd75edaa88895c32b0e04a6d41ead78f77b4 |
| SHA512 | a340986c205891e4b64405b12e5286d945e05c3278ceaa9fc19523058b982247f9893796632410d50f81045c0a0a2788a5af7a0ffdc7d38c467c728e8a95042e |
memory/3776-187-0x0000000000400000-0x00000000004B0000-memory.dmp
memory/2744-214-0x00007FFCB6010000-0x00007FFCB6020000-memory.dmp
memory/2744-216-0x00007FFCB6010000-0x00007FFCB6020000-memory.dmp
memory/2744-215-0x00007FFCB6010000-0x00007FFCB6020000-memory.dmp
memory/2744-217-0x00007FFCB6010000-0x00007FFCB6020000-memory.dmp