Analysis Overview
SHA256
8642277427b19c4f6485734e7d1568267a10bf3c8fd87bf2462078c2a9406ea4
Threat Level: Known bad
The file 8642277427b19c4f6485734e7d1568267a10bf3c8fd87bf2462078c2a9406ea4 was found to be: Known bad.
Malicious Activity Summary
FatalRat
Fatal Rat payload
Blocklisted process makes network request
Program crash
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2023-08-21 06:02
Signatures
Analysis: behavioral2
Detonation Overview
Submitted
2023-08-21 06:02
Reported
2023-08-21 06:05
Platform
win10v2004-20230703-en
Max time kernel
142s
Max time network
155s
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 2436 wrote to memory of 316 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2436 wrote to memory of 316 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2436 wrote to memory of 316 | 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\8642277427b19c4f6485734e7d1568267a10bf3c8fd87bf2462078c2a9406ea4.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8642277427b19c4f6485734e7d1568267a10bf3c8fd87bf2462078c2a9406ea4.dll,#1
Network
| Country | Destination | Domain | Proto |
| HK | 39.109.115.130:16553 | tcp | |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.81.21.72.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 130.115.109.39.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.159.190.20.in-addr.arpa | udp |
| HK | 39.109.115.130:5858 | tcp | |
| US | 8.8.8.8:53 | 95.221.229.192.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 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 126.21.238.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 89.65.42.20.in-addr.arpa | udp |
Files
memory/316-133-0x00000000023B0000-0x00000000023E5000-memory.dmp
memory/316-135-0x0000000010000000-0x0000000010031000-memory.dmp
memory/316-137-0x00000000023F0000-0x0000000002428000-memory.dmp
memory/316-134-0x0000000000BA0000-0x0000000000BA1000-memory.dmp
memory/316-139-0x0000000002430000-0x000000000245A000-memory.dmp
memory/316-144-0x00000000023B0000-0x00000000023E5000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2023-08-21 06:02
Reported
2023-08-21 06:05
Platform
win7-20230712-en
Max time kernel
122s
Max time network
126s
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\8642277427b19c4f6485734e7d1568267a10bf3c8fd87bf2462078c2a9406ea4.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8642277427b19c4f6485734e7d1568267a10bf3c8fd87bf2462078c2a9406ea4.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1080 -s 248
Network
| Country | Destination | Domain | Proto |
| HK | 39.109.115.130:16553 | tcp |
Files
memory/1080-54-0x0000000000130000-0x0000000000165000-memory.dmp
memory/1080-55-0x00000000001F0000-0x00000000001F1000-memory.dmp
memory/1080-56-0x0000000000360000-0x0000000000398000-memory.dmp
memory/1080-57-0x0000000000130000-0x0000000000165000-memory.dmp