Analysis Overview
SHA256
93a4fc857442c6656aab827dc0473f750aff1bfeccf04494a8c40ce82429137a
Threat Level: Known bad
The file 93a4fc857442c6656aab827dc0473f750aff1bfeccf04494a8c40ce82429137a was found to be: Known bad.
Malicious Activity Summary
FatalRat
Fatal Rat payload
Blocklisted process makes network request
Program crash
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2023-08-16 15:34
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-08-16 15:34
Reported
2023-08-16 15:36
Platform
win7-20230712-en
Max time kernel
121s
Max time network
123s
Command Line
Signatures
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\93a4fc857442c6656aab827dc0473f750aff1bfeccf04494a8c40ce82429137a.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\93a4fc857442c6656aab827dc0473f750aff1bfeccf04494a8c40ce82429137a.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2560 -s 248
Network
| Country | Destination | Domain | Proto |
| MU | 156.236.70.181:16553 | tcp |
Files
memory/2560-54-0x00000000001C0000-0x00000000001F5000-memory.dmp
memory/2560-55-0x0000000000200000-0x0000000000201000-memory.dmp
memory/2560-56-0x0000000000250000-0x0000000000288000-memory.dmp
memory/2560-57-0x00000000001C0000-0x00000000001F5000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-08-16 15:34
Reported
2023-08-16 15:36
Platform
win10v2004-20230703-en
Max time kernel
140s
Max time network
153s
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 5016 wrote to memory of 1708 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 5016 wrote to memory of 1708 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 5016 wrote to memory of 1708 | 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\93a4fc857442c6656aab827dc0473f750aff1bfeccf04494a8c40ce82429137a.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\93a4fc857442c6656aab827dc0473f750aff1bfeccf04494a8c40ce82429137a.dll,#1
Network
| Country | Destination | Domain | Proto |
| MU | 156.236.70.181:16553 | tcp | |
| US | 8.8.8.8:53 | 181.70.236.156.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 254.131.241.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| MU | 156.236.70.181:5858 | tcp | |
| US | 8.8.8.8:53 | 71.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 108.211.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 208.194.73.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.136.104.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 64.13.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 89.65.42.20.in-addr.arpa | udp |
Files
memory/1708-133-0x0000000002530000-0x0000000002565000-memory.dmp
memory/1708-135-0x0000000010000000-0x0000000010031000-memory.dmp
memory/1708-134-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1708-137-0x0000000002580000-0x0000000002581000-memory.dmp
memory/1708-139-0x0000000002590000-0x00000000025BA000-memory.dmp