Analysis Overview
SHA256
220533caffc31750c9e7d8226eca3d05c525df59fc81093c175001a0c2e68fb5
Threat Level: Known bad
The file 220533caffc31750c9e7d8226eca3d05c525df59fc81093c175001a0c2e68fb5 was found to be: Known bad.
Malicious Activity Summary
FatalRat
Fatal Rat payload
Blocklisted process makes network request
ASPack v2.12-2.42
Program crash
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2023-08-10 11:50
Signatures
ASPack v2.12-2.42
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-08-10 11:50
Reported
2023-08-10 11:53
Platform
win7-20230712-en
Max time kernel
141s
Max time network
121s
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\220533caffc31750c9e7d8226eca3d05c525df59fc81093c175001a0c2e68fb5.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\220533caffc31750c9e7d8226eca3d05c525df59fc81093c175001a0c2e68fb5.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 696 -s 284
Network
| Country | Destination | Domain | Proto |
| MU | 156.236.70.181:16553 | tcp |
Files
memory/696-55-0x0000000074D70000-0x0000000074F03000-memory.dmp
memory/696-56-0x0000000074D50000-0x0000000074EE3000-memory.dmp
memory/696-57-0x0000000074D50000-0x0000000074EE3000-memory.dmp
memory/696-54-0x0000000074D50000-0x0000000074EE3000-memory.dmp
memory/696-58-0x0000000074BD0000-0x0000000074D63000-memory.dmp
memory/696-59-0x0000000074D70000-0x0000000074F03000-memory.dmp
memory/696-60-0x0000000074D50000-0x0000000074EE3000-memory.dmp
memory/696-61-0x0000000002700000-0x0000000002740000-memory.dmp
memory/696-63-0x0000000002700000-0x0000000002740000-memory.dmp
memory/696-71-0x0000000074D70000-0x0000000074F03000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-08-10 11:50
Reported
2023-08-10 11:53
Platform
win10v2004-20230703-en
Max time kernel
141s
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 3268 wrote to memory of 3732 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3268 wrote to memory of 3732 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3268 wrote to memory of 3732 | 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\220533caffc31750c9e7d8226eca3d05c525df59fc81093c175001a0c2e68fb5.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\220533caffc31750c9e7d8226eca3d05c525df59fc81093c175001a0c2e68fb5.dll,#1
Network
| Country | Destination | Domain | Proto |
| MU | 156.236.70.181:16553 | tcp | |
| US | 8.8.8.8:53 | 2.136.104.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.81.21.72.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 181.70.236.156.in-addr.arpa | udp |
| MU | 156.236.70.181:5858 | tcp | |
| US | 8.8.8.8:53 | 108.211.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 158.240.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 254.158.241.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 64.13.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 163.252.72.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 24.73.42.20.in-addr.arpa | udp |
Files
memory/3732-133-0x00000000749C0000-0x0000000074B53000-memory.dmp
memory/3732-134-0x00000000749C0000-0x0000000074B53000-memory.dmp
memory/3732-135-0x00000000749C0000-0x0000000074B53000-memory.dmp
memory/3732-136-0x00000000749C0000-0x0000000074B53000-memory.dmp
memory/3732-137-0x0000000003210000-0x0000000003310000-memory.dmp
memory/3732-138-0x0000000002B90000-0x0000000002B91000-memory.dmp
memory/3732-140-0x0000000000400000-0x0000000000438000-memory.dmp
memory/3732-139-0x0000000010000000-0x0000000010031000-memory.dmp
memory/3732-143-0x0000000003130000-0x000000000315A000-memory.dmp
memory/3732-148-0x00000000749C0000-0x0000000074B53000-memory.dmp
memory/3732-149-0x0000000003210000-0x0000000003310000-memory.dmp
memory/3732-152-0x00000000749C0000-0x0000000074B53000-memory.dmp