Analysis Overview
SHA256
638edf8d1b0defd4f6b53d71c4e4c8b53c605d988a2c810c87298a59bf3e659b
Threat Level: Known bad
The file 2024-06-11_79eee3cf77bb96d9f8e4105834b46f0c_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of Cryptolocker Samples
Detection of CryptoLocker Variants
Detection of CryptoLocker Variants
Detection of Cryptolocker Samples
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-11 02:31
Signatures
Detection of CryptoLocker Variants
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detection of Cryptolocker Samples
| 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
2024-06-11 02:31
Reported
2024-06-11 02:34
Platform
win7-20240508-en
Max time kernel
144s
Max time network
148s
Command Line
Signatures
Detection of CryptoLocker Variants
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Detection of Cryptolocker Samples
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\misid.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-11_79eee3cf77bb96d9f8e4105834b46f0c_cryptolocker.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1700 wrote to memory of 2616 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-11_79eee3cf77bb96d9f8e4105834b46f0c_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
| PID 1700 wrote to memory of 2616 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-11_79eee3cf77bb96d9f8e4105834b46f0c_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
| PID 1700 wrote to memory of 2616 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-11_79eee3cf77bb96d9f8e4105834b46f0c_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
| PID 1700 wrote to memory of 2616 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-11_79eee3cf77bb96d9f8e4105834b46f0c_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-11_79eee3cf77bb96d9f8e4105834b46f0c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-11_79eee3cf77bb96d9f8e4105834b46f0c_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
Files
memory/1700-9-0x0000000000250000-0x0000000000256000-memory.dmp
memory/1700-8-0x0000000000500000-0x000000000050E000-memory.dmp
memory/1700-1-0x0000000000290000-0x0000000000296000-memory.dmp
memory/1700-0-0x0000000000250000-0x0000000000256000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\misid.exe
| MD5 | 23425bbea873cfff0cc134c11c546966 |
| SHA1 | 64b80127a205d333f6ac5703b95e8a57875a350f |
| SHA256 | 0415aa0d9229d90b7ee5b6d5b75eea57a51dfdc4a8d0177099351a8487ad1895 |
| SHA512 | 8d051905e8021fc866405aafa23db5deb4f9a12d6cf6cdddb8fd91ec28d105130f2cacf2e4737c7ca79e45af9a4e4e69cf5f586ce1523792e86cf2e205b4b1a6 |
memory/2616-16-0x0000000000500000-0x000000000050E000-memory.dmp
memory/1700-15-0x0000000002980000-0x000000000298E000-memory.dmp
memory/2616-18-0x0000000000210000-0x0000000000216000-memory.dmp
memory/2616-25-0x00000000001D0000-0x00000000001D6000-memory.dmp
memory/2616-26-0x0000000000500000-0x000000000050E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-11 02:31
Reported
2024-06-11 02:34
Platform
win10v2004-20240508-en
Max time kernel
150s
Max time network
150s
Command Line
Signatures
Detection of CryptoLocker Variants
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Detection of Cryptolocker Samples
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-11_79eee3cf77bb96d9f8e4105834b46f0c_cryptolocker.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\misid.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4120 wrote to memory of 2440 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-11_79eee3cf77bb96d9f8e4105834b46f0c_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
| PID 4120 wrote to memory of 2440 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-11_79eee3cf77bb96d9f8e4105834b46f0c_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
| PID 4120 wrote to memory of 2440 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-11_79eee3cf77bb96d9f8e4105834b46f0c_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-11_79eee3cf77bb96d9f8e4105834b46f0c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-11_79eee3cf77bb96d9f8e4105834b46f0c_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
Files
memory/4120-0-0x0000000000500000-0x000000000050E000-memory.dmp
memory/4120-1-0x0000000000800000-0x0000000000806000-memory.dmp
memory/4120-8-0x0000000000800000-0x0000000000806000-memory.dmp
memory/4120-2-0x0000000000820000-0x0000000000826000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\misid.exe
| MD5 | 23425bbea873cfff0cc134c11c546966 |
| SHA1 | 64b80127a205d333f6ac5703b95e8a57875a350f |
| SHA256 | 0415aa0d9229d90b7ee5b6d5b75eea57a51dfdc4a8d0177099351a8487ad1895 |
| SHA512 | 8d051905e8021fc866405aafa23db5deb4f9a12d6cf6cdddb8fd91ec28d105130f2cacf2e4737c7ca79e45af9a4e4e69cf5f586ce1523792e86cf2e205b4b1a6 |
memory/4120-17-0x0000000000500000-0x000000000050E000-memory.dmp
memory/2440-18-0x0000000000500000-0x000000000050E000-memory.dmp
memory/2440-20-0x0000000000870000-0x0000000000876000-memory.dmp
memory/2440-26-0x0000000000660000-0x0000000000666000-memory.dmp
memory/2440-27-0x0000000000500000-0x000000000050E000-memory.dmp