Analysis Overview
SHA256
31ebc039e17d2b7a093ec4e07f5b09bbf291aa0e1c44f87cd6b221a6775fd421
Threat Level: Known bad
The file MXK2LSdR2XzCx1OT1YzbTO5gHzkc.zip was found to be: Known bad.
Malicious Activity Summary
Emotet
Adds Run key to start application
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-03-08 09:47
Signatures
Analysis: behavioral2
Detonation Overview
Submitted
2023-03-08 09:47
Reported
2023-03-08 09:50
Platform
win10v2004-20230220-en
Max time kernel
150s
Max time network
156s
Command Line
Signatures
Emotet
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\uASRzBfybnsC.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\FauUMKNLoasK\\uASRzBfybnsC.dll\"" | C:\Windows\system32\regsvr32.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 behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\regsvr32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3824 wrote to memory of 3880 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\system32\regsvr32.exe |
| PID 3824 wrote to memory of 3880 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\system32\regsvr32.exe |
Processes
C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\1t8V6nCrGVkZJ7uySd6xfwCmMPpz.dll
C:\Windows\system32\regsvr32.exe
C:\Windows\system32\regsvr32.exe "C:\Windows\system32\FauUMKNLoasK\uASRzBfybnsC.dll"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 123.108.74.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.175.53.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.154.139.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 35.146.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 151.122.125.40.in-addr.arpa | udp |
| US | 20.189.173.5:443 | tcp | |
| NL | 88.221.25.155:80 | tcp | |
| US | 8.8.8.8:53 | 210.81.184.52.in-addr.arpa | udp |
| NL | 173.223.113.164:443 | tcp | |
| NL | 173.223.113.131:80 | tcp | |
| US | 204.79.197.203:80 | tcp | |
| US | 8.8.8.8:53 | 177.238.32.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.38.195.152.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 |
| NL | 178.79.208.1:80 | tcp |
Files
memory/3824-133-0x0000000180000000-0x000000018002D000-memory.dmp
memory/3824-136-0x0000000002AE0000-0x0000000002AE1000-memory.dmp
memory/3880-140-0x0000000000400000-0x00000000004B0000-memory.dmp
memory/3880-153-0x0000000000400000-0x00000000004B0000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2023-03-08 09:47
Reported
2023-03-08 09:50
Platform
win7-20230220-en
Max time kernel
156s
Max time network
150s
Command Line
Signatures
Emotet
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 |
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\regsvr32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1756 wrote to memory of 1648 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\system32\regsvr32.exe |
| PID 1756 wrote to memory of 1648 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\system32\regsvr32.exe |
| PID 1756 wrote to memory of 1648 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\system32\regsvr32.exe |
| PID 1756 wrote to memory of 1648 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\system32\regsvr32.exe |
| PID 1756 wrote to memory of 1648 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\system32\regsvr32.exe |
Processes
C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\1t8V6nCrGVkZJ7uySd6xfwCmMPpz.dll
C:\Windows\system32\regsvr32.exe
C:\Windows\system32\regsvr32.exe "C:\Windows\system32\ZspixYAwOkesw\ZcffyyYFV.dll"
Network
| Country | Destination | Domain | Proto |
| FR | 91.121.146.47:8080 | tcp | |
| FR | 91.121.146.47:8080 | tcp | |
| US | 66.228.32.31:7080 | tcp | |
| KR | 182.162.143.56:443 | tcp | |
| KR | 182.162.143.56:443 | tcp | |
| BR | 187.63.160.88:80 | tcp | |
| US | 167.172.199.165:8080 | tcp | |
| US | 167.172.199.165:8080 | tcp | |
| DE | 164.90.222.65:443 | tcp | |
| US | 104.168.155.143:8080 | tcp | |
| US | 104.168.155.143:8080 | tcp | |
| N/A | 91.207.28.33:8080 | tcp |
Files
memory/1756-54-0x0000000001E20000-0x0000000001ED0000-memory.dmp
memory/1756-56-0x0000000180000000-0x000000018002D000-memory.dmp
memory/1756-59-0x0000000000130000-0x0000000000131000-memory.dmp
memory/1648-60-0x0000000001D60000-0x0000000001E10000-memory.dmp