Analysis Overview
SHA256
99a7fa2adc6d4644bf51c2024de4b635be228bbd5e8dd02c4fc8d61052b2208e
Threat Level: Known bad
The file 99a7fa2adc6d4644bf51c2024de4b635be228bbd5e8dd02c4fc8d61052b2208e 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
2024-05-07 03:16
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-07 03:16
Reported
2024-05-07 03:19
Platform
win7-20240215-en
Max time kernel
127s
Max time network
136s
Command Line
Signatures
Cobaltstrike
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2156 wrote to memory of 2708 | N/A | C:\Users\Admin\AppData\Local\Temp\99a7fa2adc6d4644bf51c2024de4b635be228bbd5e8dd02c4fc8d61052b2208e.exe | C:\Windows\System32\choice.exe |
| PID 2156 wrote to memory of 2708 | N/A | C:\Users\Admin\AppData\Local\Temp\99a7fa2adc6d4644bf51c2024de4b635be228bbd5e8dd02c4fc8d61052b2208e.exe | C:\Windows\System32\choice.exe |
| PID 2156 wrote to memory of 2708 | N/A | C:\Users\Admin\AppData\Local\Temp\99a7fa2adc6d4644bf51c2024de4b635be228bbd5e8dd02c4fc8d61052b2208e.exe | C:\Windows\System32\choice.exe |
| PID 2156 wrote to memory of 2708 | N/A | C:\Users\Admin\AppData\Local\Temp\99a7fa2adc6d4644bf51c2024de4b635be228bbd5e8dd02c4fc8d61052b2208e.exe | C:\Windows\System32\choice.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\99a7fa2adc6d4644bf51c2024de4b635be228bbd5e8dd02c4fc8d61052b2208e.exe
"C:\Users\Admin\AppData\Local\Temp\99a7fa2adc6d4644bf51c2024de4b635be228bbd5e8dd02c4fc8d61052b2208e.exe"
C:\Windows\System32\choice.exe
"C:\\Windows\\System32\\choice.exe"
Network
| Country | Destination | Domain | Proto |
| JP | 43.130.252.161:8888 | tcp | |
| JP | 43.130.252.161:8888 | tcp | |
| JP | 43.130.252.161:8888 | tcp | |
| JP | 43.130.252.161:8888 | tcp |
Files
memory/2708-1-0x0000000000110000-0x0000000000151000-memory.dmp
memory/2708-0-0x0000000000110000-0x0000000000151000-memory.dmp
memory/2708-3-0x0000000000290000-0x00000000002DF000-memory.dmp
memory/2156-2-0x000000013F260000-0x000000013F5B9000-memory.dmp
memory/2708-4-0x0000000000290000-0x00000000002DF000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-07 03:16
Reported
2024-05-07 03:19
Platform
win10v2004-20240419-en
Max time kernel
133s
Max time network
101s
Command Line
Signatures
Cobaltstrike
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1460 wrote to memory of 4908 | N/A | C:\Users\Admin\AppData\Local\Temp\99a7fa2adc6d4644bf51c2024de4b635be228bbd5e8dd02c4fc8d61052b2208e.exe | C:\Windows\System32\choice.exe |
| PID 1460 wrote to memory of 4908 | N/A | C:\Users\Admin\AppData\Local\Temp\99a7fa2adc6d4644bf51c2024de4b635be228bbd5e8dd02c4fc8d61052b2208e.exe | C:\Windows\System32\choice.exe |
| PID 1460 wrote to memory of 4908 | N/A | C:\Users\Admin\AppData\Local\Temp\99a7fa2adc6d4644bf51c2024de4b635be228bbd5e8dd02c4fc8d61052b2208e.exe | C:\Windows\System32\choice.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\99a7fa2adc6d4644bf51c2024de4b635be228bbd5e8dd02c4fc8d61052b2208e.exe
"C:\Users\Admin\AppData\Local\Temp\99a7fa2adc6d4644bf51c2024de4b635be228bbd5e8dd02c4fc8d61052b2208e.exe"
C:\Windows\System32\choice.exe
"C:\\Windows\\System32\\choice.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 194.61.62.23.in-addr.arpa | udp |
| JP | 43.130.252.161:8888 | tcp | |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.251.17.2.in-addr.arpa | udp |
| JP | 43.130.252.161:8888 | tcp | |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
Files
memory/4908-0-0x0000012FD16D0000-0x0000012FD1711000-memory.dmp
memory/1460-1-0x00007FF64A560000-0x00007FF64A8B9000-memory.dmp
memory/4908-2-0x0000012FD19C0000-0x0000012FD1A0F000-memory.dmp
memory/4908-3-0x0000012FD19C0000-0x0000012FD1A0F000-memory.dmp