Analysis Overview
SHA256
f3ccf5ab10c55af91804220c822086180e9b950709f92cfa4c2c33667a4b54f8
Threat Level: Known bad
The file f3ccf5ab10c55af91804220c822086180e9b950709f92cfa4c2c33667a4b54f8 was found to be: Known bad.
Malicious Activity Summary
DarkVNC
DarkVNC payload
Darkvnc family
DarkVNC payload
Suspicious use of SetThreadContext
Unsigned PE
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix
Analysis: static1
Detonation Overview
Reported
2023-11-02 13:40
Signatures
DarkVNC payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Darkvnc family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-11-02 13:40
Reported
2023-11-02 13:43
Platform
win7-20231025-en
Max time kernel
119s
Max time network
137s
Command Line
Signatures
DarkVNC
DarkVNC payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2948 set thread context of 2804 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\system32\notepad.exe |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f3ccf5ab10c55af91804220c822086180e9b950709f92cfa4c2c33667a4b54f8.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f3ccf5ab10c55af91804220c822086180e9b950709f92cfa4c2c33667a4b54f8.dll,#1
C:\Windows\system32\notepad.exe
C:\Windows\system32\notepad.exe -k
Network
| Country | Destination | Domain | Proto |
| PL | 37.28.157.33:443 | tcp | |
| PL | 37.28.157.33:443 | tcp |
Files
memory/2804-0-0x00000000000F0000-0x00000000000F1000-memory.dmp
memory/2804-2-0x000007FFFFFD7000-0x000007FFFFFD8000-memory.dmp
memory/2804-3-0x00000000000F0000-0x00000000000F1000-memory.dmp
memory/2804-5-0x0000000001B80000-0x0000000001C49000-memory.dmp
memory/2804-9-0x0000000001B80000-0x0000000001C49000-memory.dmp
memory/2804-10-0x0000000001B80000-0x0000000001C49000-memory.dmp
memory/2804-11-0x0000000001B80000-0x0000000001C49000-memory.dmp
memory/2804-12-0x0000000001B80000-0x0000000001C49000-memory.dmp
memory/2804-13-0x0000000001B80000-0x0000000001C49000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-11-02 13:40
Reported
2023-11-02 13:43
Platform
win10v2004-20231023-en
Max time kernel
138s
Max time network
171s
Command Line
Signatures
DarkVNC
DarkVNC payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1048 set thread context of 1904 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\system32\notepad.exe |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4988 wrote to memory of 1048 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4988 wrote to memory of 1048 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4988 wrote to memory of 1048 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1048 wrote to memory of 1904 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\system32\notepad.exe |
| PID 1048 wrote to memory of 1904 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\system32\notepad.exe |
| PID 1048 wrote to memory of 1904 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\system32\notepad.exe |
| PID 1048 wrote to memory of 1904 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\system32\notepad.exe |
| PID 1048 wrote to memory of 1904 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\system32\notepad.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f3ccf5ab10c55af91804220c822086180e9b950709f92cfa4c2c33667a4b54f8.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f3ccf5ab10c55af91804220c822086180e9b950709f92cfa4c2c33667a4b54f8.dll,#1
C:\Windows\system32\notepad.exe
C:\Windows\system32\notepad.exe -k
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 23.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 155.245.36.23.in-addr.arpa | udp |
| PL | 37.28.157.33:443 | tcp | |
| PL | 37.28.157.33:443 | tcp | |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 33.157.28.37.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.136.104.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 146.78.124.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.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 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 1.202.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.179.89.13.in-addr.arpa | udp |
Files
memory/1904-2-0x0000000000F20000-0x0000000000FE9000-memory.dmp
memory/1904-3-0x0000000000F20000-0x0000000000FE9000-memory.dmp
memory/1904-1-0x0000000000FF0000-0x0000000000FF1000-memory.dmp
memory/1904-7-0x0000000000F20000-0x0000000000FE9000-memory.dmp
memory/1904-8-0x0000000000F20000-0x0000000000FE9000-memory.dmp
memory/1904-9-0x0000000000F20000-0x0000000000FE9000-memory.dmp
memory/1904-10-0x0000000000F20000-0x0000000000FE9000-memory.dmp
memory/1904-11-0x0000000000F20000-0x0000000000FE9000-memory.dmp