Analysis Overview
SHA256
4b3fe40f53343c85fc58f63ffb5afff75deb4ac0a31603a6bbbefcc671609973
Threat Level: Known bad
The file 4b3fe40f53343c85fc58f63ffb5afff75deb4ac0a31603a6bbbefcc671609973 was found to be: Known bad.
Malicious Activity Summary
Cobaltstrike
Blocklisted process makes network request
Unsigned PE
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2024-09-29 15:09
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-09-29 15:09
Reported
2024-09-29 15:12
Platform
win7-20240903-en
Max time kernel
123s
Max time network
130s
Command Line
Signatures
Cobaltstrike
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\system32\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\system32\rundll32.exe | N/A |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4b3fe40f53343c85fc58f63ffb5afff75deb4ac0a31603a6bbbefcc671609973.dll,#1
Network
| Country | Destination | Domain | Proto |
| JP | 103.106.0.20:57540 | 103.106.0.20 | tcp |
| JP | 103.106.0.20:57540 | 103.106.0.20 | tcp |
| JP | 103.106.0.20:57540 | 103.106.0.20 | tcp |
Files
memory/1044-1-0x00000000001B0000-0x00000000001F1000-memory.dmp
memory/1044-0-0x000007FEBCBF0000-0x000007FEBCC00000-memory.dmp
memory/1044-4-0x000007FEFCC00000-0x000007FEFCC6C000-memory.dmp
memory/1044-3-0x000007FEFCC00000-0x000007FEFCC6C000-memory.dmp
memory/1044-2-0x000007FEFCC01000-0x000007FEFCC02000-memory.dmp
memory/1044-5-0x0000000000330000-0x000000000037F000-memory.dmp
memory/1044-6-0x0000000000330000-0x000000000037F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-09-29 15:09
Reported
2024-09-29 15:12
Platform
win10v2004-20240802-en
Max time kernel
127s
Max time network
136s
Command Line
Signatures
Cobaltstrike
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\system32\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\system32\rundll32.exe | N/A |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4b3fe40f53343c85fc58f63ffb5afff75deb4ac0a31603a6bbbefcc671609973.dll,#1
Network
| Country | Destination | Domain | Proto |
| JP | 103.106.0.20:57540 | 103.106.0.20 | tcp |
| US | 8.8.8.8:53 | 20.0.106.103.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 98.209.201.84.in-addr.arpa | udp |
| 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 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| JP | 103.106.0.20:57540 | 103.106.0.20 | tcp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| JP | 103.106.0.20:57540 | 103.106.0.20 | tcp |
Files
memory/2208-1-0x000001A549530000-0x000001A549571000-memory.dmp
memory/2208-0-0x00007FFE4BC00000-0x00007FFE4BC10000-memory.dmp
memory/2208-2-0x000001A549580000-0x000001A5495CF000-memory.dmp
memory/2208-3-0x000001A549580000-0x000001A5495CF000-memory.dmp
memory/2208-5-0x000001A549580000-0x000001A5495CF000-memory.dmp
memory/2208-7-0x000001A549580000-0x000001A5495CF000-memory.dmp