Analysis Overview
SHA256
7aa540096929693d8fb8248f8984f254c6682d0dd558ac2ae34d692fe1ced38a
Threat Level: Known bad
The file 7aa540096929693d8fb8248f8984f254c6682d0dd558ac2ae34d692fe1ced38a was found to be: Known bad.
Malicious Activity Summary
FatalRat
Fatal Rat payload
Blocklisted process makes network request
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2023-08-20 11:51
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-08-20 11:51
Reported
2023-08-20 11:54
Platform
win7-20230712-en
Max time kernel
120s
Max time network
152s
Command Line
Signatures
FatalRat
Fatal Rat payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1732 wrote to memory of 1232 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1732 wrote to memory of 1232 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1732 wrote to memory of 1232 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1732 wrote to memory of 1232 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1732 wrote to memory of 1232 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1732 wrote to memory of 1232 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1732 wrote to memory of 1232 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7aa540096929693d8fb8248f8984f254c6682d0dd558ac2ae34d692fe1ced38a.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7aa540096929693d8fb8248f8984f254c6682d0dd558ac2ae34d692fe1ced38a.dll,#1
Network
| Country | Destination | Domain | Proto |
| HK | 39.109.115.130:16553 | tcp | |
| HK | 39.109.115.130:5858 | tcp |
Files
memory/1232-54-0x0000000000230000-0x0000000000265000-memory.dmp
memory/1232-55-0x00000000000C0000-0x00000000000C1000-memory.dmp
memory/1232-57-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1232-56-0x0000000010000000-0x0000000010031000-memory.dmp
memory/1232-60-0x0000000000180000-0x00000000001AA000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-08-20 11:51
Reported
2023-08-20 11:54
Platform
win10v2004-20230703-en
Max time kernel
142s
Max time network
154s
Command Line
Signatures
FatalRat
Fatal Rat payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3728 wrote to memory of 1848 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3728 wrote to memory of 1848 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3728 wrote to memory of 1848 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7aa540096929693d8fb8248f8984f254c6682d0dd558ac2ae34d692fe1ced38a.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7aa540096929693d8fb8248f8984f254c6682d0dd558ac2ae34d692fe1ced38a.dll,#1
Network
| Country | Destination | Domain | Proto |
| HK | 39.109.115.130:16553 | tcp | |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 126.23.238.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 146.78.124.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 130.115.109.39.in-addr.arpa | udp |
| HK | 39.109.115.130:5858 | tcp | |
| US | 8.8.8.8:53 | 73.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 195.98.74.40.in-addr.arpa | udp |
Files
memory/1848-133-0x0000000002F50000-0x0000000002F85000-memory.dmp
memory/1848-134-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1848-135-0x0000000002E30000-0x0000000002E31000-memory.dmp
memory/1848-136-0x0000000010000000-0x0000000010031000-memory.dmp
memory/1848-139-0x0000000002F90000-0x0000000002FBA000-memory.dmp