Analysis Overview
SHA256
cfad0dcd5988f2f30d91b4c51bf68ff571ec988393934ecd7bcb876163f5ea66
Threat Level: Known bad
The file oncY2y9LclXNvW43DvC6d.dll 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 08:41
Signatures
Analysis: behavioral2
Detonation Overview
Submitted
2023-03-08 08:40
Reported
2023-03-08 08:47
Platform
win10v2004-20230220-en
Max time kernel
144s
Max time network
132s
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\Vnkv.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\AzxryDcHtAaJZ\\Vnkv.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 4732 wrote to memory of 3244 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\system32\regsvr32.exe |
| PID 4732 wrote to memory of 3244 | 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\oncY2y9LclXNvW43DvC6d.dll
C:\Windows\system32\regsvr32.exe
C:\Windows\system32\regsvr32.exe "C:\Windows\system32\AzxryDcHtAaJZ\Vnkv.dll"
Network
| Country | Destination | Domain | Proto |
| NL | 178.79.208.1:80 | tcp | |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 123.108.74.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.38.195.152.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 44.8.109.52.in-addr.arpa | udp |
| US | 13.89.179.9:443 | tcp | |
| 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 |
| US | 8.8.8.8:53 | 234.238.32.23.in-addr.arpa | udp |
| NL | 178.79.208.1:80 | tcp | |
| NL | 178.79.208.1:80 | tcp | |
| NL | 173.223.113.164:443 | tcp |
Files
memory/4732-133-0x0000000180000000-0x000000018002D000-memory.dmp
memory/4732-136-0x0000000001300000-0x0000000001301000-memory.dmp
memory/3244-140-0x0000000000400000-0x00000000004B0000-memory.dmp
memory/3244-153-0x0000000000400000-0x00000000004B0000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2023-03-08 08:40
Reported
2023-03-08 08:47
Platform
win7-20230220-en
Max time kernel
137s
Max time network
149s
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 1952 wrote to memory of 1268 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\system32\regsvr32.exe |
| PID 1952 wrote to memory of 1268 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\system32\regsvr32.exe |
| PID 1952 wrote to memory of 1268 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\system32\regsvr32.exe |
| PID 1952 wrote to memory of 1268 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\system32\regsvr32.exe |
| PID 1952 wrote to memory of 1268 | 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\oncY2y9LclXNvW43DvC6d.dll
C:\Windows\system32\regsvr32.exe
C:\Windows\system32\regsvr32.exe "C:\Windows\system32\YuJPf\iFukdXfAHgnBdl.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 | |
| 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 | |
| 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 | |
| DE | 164.90.222.65:443 | tcp | |
| US | 104.168.155.143:8080 | tcp | |
| US | 104.168.155.143:8080 | tcp | |
| KG | 91.207.28.33:8080 | tcp | |
| US | 72.15.201.15:8080 | tcp | |
| KR | 183.111.227.137:8080 | tcp | |
| IN | 103.132.242.26:8080 | tcp | |
| GB | 159.65.88.10:8080 | tcp |
Files
memory/1952-54-0x0000000001EC0000-0x0000000001F70000-memory.dmp
memory/1952-56-0x0000000180000000-0x000000018002D000-memory.dmp
memory/1952-59-0x00000000003A0000-0x00000000003A1000-memory.dmp
memory/1268-60-0x0000000000350000-0x0000000000400000-memory.dmp