Analysis Overview
SHA256
35d9637bd9b44fcaedc53e7f72f1289741bd266e04c0c29b95aa389a05cfaa5f
Threat Level: Known bad
The file 2024-06-01_420d54ff31a7ef2e05ff4e0b643173db_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of CryptoLocker Variants
Detection of CryptoLocker Variants
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
Unsigned PE
Enumerates physical storage devices
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-01 18:25
Signatures
Detection of CryptoLocker Variants
| 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
2024-06-01 18:25
Reported
2024-06-01 18:28
Platform
win7-20240221-en
Max time kernel
148s
Max time network
149s
Command Line
Signatures
Detection of CryptoLocker Variants
| Description | Indicator | Process | Target |
| 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\rewok.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_420d54ff31a7ef2e05ff4e0b643173db_cryptolocker.exe | N/A |
Enumerates physical storage devices
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_420d54ff31a7ef2e05ff4e0b643173db_cryptolocker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\rewok.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2276 wrote to memory of 2512 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_420d54ff31a7ef2e05ff4e0b643173db_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\rewok.exe |
| PID 2276 wrote to memory of 2512 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_420d54ff31a7ef2e05ff4e0b643173db_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\rewok.exe |
| PID 2276 wrote to memory of 2512 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_420d54ff31a7ef2e05ff4e0b643173db_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\rewok.exe |
| PID 2276 wrote to memory of 2512 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_420d54ff31a7ef2e05ff4e0b643173db_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\rewok.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-01_420d54ff31a7ef2e05ff4e0b643173db_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-01_420d54ff31a7ef2e05ff4e0b643173db_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\rewok.exe
"C:\Users\Admin\AppData\Local\Temp\rewok.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | spinistry.com | udp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
Files
memory/2276-8-0x0000000000280000-0x0000000000286000-memory.dmp
memory/2276-1-0x0000000000400000-0x0000000000406000-memory.dmp
memory/2276-0-0x0000000000280000-0x0000000000286000-memory.dmp
\Users\Admin\AppData\Local\Temp\rewok.exe
| MD5 | 0130fa94f4534cb6aba36f627d655c17 |
| SHA1 | 3a5bedff9d2a34118bd4fe6b33ca3c6bc7be1f58 |
| SHA256 | 6d4e0e7b1ca6d5c6c4ded617d32552680d44ea5b87917a530956a763615883b2 |
| SHA512 | 07cac0e3aec5e95f00490a55ca0222e14f05c0ed47f300d213fead920918c8f40342eee547d2be6f0973f80c4c3b0351b844ea96539e6bea0b72ac3c5aaee91e |
memory/2512-23-0x0000000000380000-0x0000000000386000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-01 18:25
Reported
2024-06-01 18:28
Platform
win10v2004-20240508-en
Max time kernel
148s
Max time network
156s
Command Line
Signatures
Detection of CryptoLocker Variants
| Description | Indicator | Process | Target |
| 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\2024-06-01_420d54ff31a7ef2e05ff4e0b643173db_cryptolocker.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\rewok.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2788 wrote to memory of 4956 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_420d54ff31a7ef2e05ff4e0b643173db_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\rewok.exe |
| PID 2788 wrote to memory of 4956 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_420d54ff31a7ef2e05ff4e0b643173db_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\rewok.exe |
| PID 2788 wrote to memory of 4956 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_420d54ff31a7ef2e05ff4e0b643173db_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\rewok.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-01_420d54ff31a7ef2e05ff4e0b643173db_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-01_420d54ff31a7ef2e05ff4e0b643173db_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\rewok.exe
"C:\Users\Admin\AppData\Local\Temp\rewok.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | spinistry.com | udp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 8.8.8.8:53 | 233.143.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 8.8.8.8:53 | 145.83.221.88.in-addr.arpa | udp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 8.8.8.8:53 | 105.83.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
Files
memory/2788-0-0x0000000002250000-0x0000000002256000-memory.dmp
memory/2788-1-0x0000000000400000-0x0000000000406000-memory.dmp
memory/2788-8-0x0000000002250000-0x0000000002256000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\rewok.exe
| MD5 | 0130fa94f4534cb6aba36f627d655c17 |
| SHA1 | 3a5bedff9d2a34118bd4fe6b33ca3c6bc7be1f58 |
| SHA256 | 6d4e0e7b1ca6d5c6c4ded617d32552680d44ea5b87917a530956a763615883b2 |
| SHA512 | 07cac0e3aec5e95f00490a55ca0222e14f05c0ed47f300d213fead920918c8f40342eee547d2be6f0973f80c4c3b0351b844ea96539e6bea0b72ac3c5aaee91e |
memory/4956-25-0x0000000002200000-0x0000000002206000-memory.dmp