Analysis Overview
SHA256
b4012c45423840f0e2e313bb0f66e545b383c714ebdff0e183f8ac33dd04d46c
Threat Level: Known bad
The file b4012c45423840f0e2e313bb0f66e545b383c714ebdff0e183f8ac33dd04d46c was found to be: Known bad.
Malicious Activity Summary
Cobaltstrike
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix
Analysis: static1
Detonation Overview
Reported
2024-02-06 23:45
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-06 23:45
Reported
2024-02-06 23:49
Platform
win7-20231129-en
Max time kernel
122s
Max time network
123s
Command Line
Signatures
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2088 wrote to memory of 2152 | N/A | C:\Users\Admin\AppData\Local\Temp\b4012c45423840f0e2e313bb0f66e545b383c714ebdff0e183f8ac33dd04d46c.exe | C:\Windows\system32\notepad.exe |
| PID 2088 wrote to memory of 2152 | N/A | C:\Users\Admin\AppData\Local\Temp\b4012c45423840f0e2e313bb0f66e545b383c714ebdff0e183f8ac33dd04d46c.exe | C:\Windows\system32\notepad.exe |
| PID 2088 wrote to memory of 2152 | N/A | C:\Users\Admin\AppData\Local\Temp\b4012c45423840f0e2e313bb0f66e545b383c714ebdff0e183f8ac33dd04d46c.exe | C:\Windows\system32\notepad.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\b4012c45423840f0e2e313bb0f66e545b383c714ebdff0e183f8ac33dd04d46c.exe
"C:\Users\Admin\AppData\Local\Temp\b4012c45423840f0e2e313bb0f66e545b383c714ebdff0e183f8ac33dd04d46c.exe"
C:\Windows\system32\notepad.exe
notepad.exe
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-06 23:45
Reported
2024-02-06 23:49
Platform
win10v2004-20231222-en
Max time kernel
145s
Max time network
146s
Command Line
Signatures
Cobaltstrike
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2632 wrote to memory of 2592 | N/A | C:\Users\Admin\AppData\Local\Temp\b4012c45423840f0e2e313bb0f66e545b383c714ebdff0e183f8ac33dd04d46c.exe | C:\Windows\SYSTEM32\notepad.exe |
| PID 2632 wrote to memory of 2592 | N/A | C:\Users\Admin\AppData\Local\Temp\b4012c45423840f0e2e313bb0f66e545b383c714ebdff0e183f8ac33dd04d46c.exe | C:\Windows\SYSTEM32\notepad.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\b4012c45423840f0e2e313bb0f66e545b383c714ebdff0e183f8ac33dd04d46c.exe
"C:\Users\Admin\AppData\Local\Temp\b4012c45423840f0e2e313bb0f66e545b383c714ebdff0e183f8ac33dd04d46c.exe"
C:\Windows\SYSTEM32\notepad.exe
notepad.exe
Network
| Country | Destination | Domain | Proto |
| US | 172.245.64.178:2443 | 172.245.64.178 | tcp |
| US | 8.8.8.8:53 | 178.64.245.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 180.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.159.190.20.in-addr.arpa | udp |
| US | 172.245.64.178:2443 | 172.245.64.178 | tcp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.71.91.104.in-addr.arpa | udp |
| US | 172.245.64.178:2443 | 172.245.64.178 | tcp |
| US | 8.8.8.8:53 | 194.178.17.96.in-addr.arpa | udp |
| US | 172.245.64.178:2443 | 172.245.64.178 | tcp |
| US | 8.8.8.8:53 | 30.243.111.52.in-addr.arpa | udp |
| US | 172.245.64.178:2443 | 172.245.64.178 | tcp |
| US | 8.8.8.8:53 | 194.98.74.40.in-addr.arpa | udp |
Files
memory/2632-1-0x00000158017A0000-0x00000158017A1000-memory.dmp
memory/2632-0-0x00007FFE69F50000-0x00007FFE6A145000-memory.dmp
memory/2632-6-0x0000015801F20000-0x0000015802320000-memory.dmp
memory/2632-5-0x0000015802320000-0x0000015802792000-memory.dmp