Analysis Overview
SHA256
989947614f20e02a32b26d3558b4c6524261d1fd9856bfeb103be458f509c598
Threat Level: Known bad
The file 2024-06-13_8a83a802e5dbc2bd3e01c73815c7d2e8_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of CryptoLocker Variants
Detection of CryptoLocker Variants
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-13 03:41
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
2024-06-13 03:41
Reported
2024-06-13 03:44
Platform
win7-20240611-en
Max time kernel
149s
Max time network
154s
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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\hasfj.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_8a83a802e5dbc2bd3e01c73815c7d2e8_cryptolocker.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1044 wrote to memory of 2536 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_8a83a802e5dbc2bd3e01c73815c7d2e8_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 1044 wrote to memory of 2536 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_8a83a802e5dbc2bd3e01c73815c7d2e8_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 1044 wrote to memory of 2536 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_8a83a802e5dbc2bd3e01c73815c7d2e8_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 1044 wrote to memory of 2536 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_8a83a802e5dbc2bd3e01c73815c7d2e8_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_8a83a802e5dbc2bd3e01c73815c7d2e8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_8a83a802e5dbc2bd3e01c73815c7d2e8_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\hasfj.exe
"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | mytarta.com | udp |
Files
memory/1044-0-0x0000000008000000-0x000000000800A000-memory.dmp
memory/1044-2-0x0000000000360000-0x0000000000366000-memory.dmp
memory/1044-1-0x0000000000330000-0x0000000000336000-memory.dmp
memory/1044-9-0x0000000000330000-0x0000000000336000-memory.dmp
\Users\Admin\AppData\Local\Temp\hasfj.exe
| MD5 | c13eb40795ebb5691ca5e3d164620231 |
| SHA1 | 3d30c4d2116b1dd074c294c21f12c76ecacb2e1b |
| SHA256 | c45e295b5942abdafbf5cb1e04a5e9d504713658f194c2d5d33c029e71ef3966 |
| SHA512 | 332cf333a3c2b47848f0474732cad426e12d0208bc3798f2737ce1960ba3b74d67b4c94f95b470956abb0cc171988038b545f2a72c7f78fa0e9e7ca6e1a16465 |
memory/1044-15-0x0000000008000000-0x000000000800A000-memory.dmp
memory/2536-16-0x0000000008000000-0x000000000800A000-memory.dmp
memory/2536-18-0x0000000001CA0000-0x0000000001CA6000-memory.dmp
memory/2536-25-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/2536-26-0x0000000008000000-0x000000000800A000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-13 03:41
Reported
2024-06-13 03:44
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 |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-13_8a83a802e5dbc2bd3e01c73815c7d2e8_cryptolocker.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\hasfj.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2364 wrote to memory of 4224 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_8a83a802e5dbc2bd3e01c73815c7d2e8_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 2364 wrote to memory of 4224 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_8a83a802e5dbc2bd3e01c73815c7d2e8_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 2364 wrote to memory of 4224 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_8a83a802e5dbc2bd3e01c73815c7d2e8_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_8a83a802e5dbc2bd3e01c73815c7d2e8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_8a83a802e5dbc2bd3e01c73815c7d2e8_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\hasfj.exe
"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
Files
memory/2364-0-0x0000000008000000-0x000000000800A000-memory.dmp
memory/2364-1-0x0000000002160000-0x0000000002166000-memory.dmp
memory/2364-2-0x0000000003150000-0x0000000003156000-memory.dmp
memory/2364-9-0x0000000002160000-0x0000000002166000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\hasfj.exe
| MD5 | c13eb40795ebb5691ca5e3d164620231 |
| SHA1 | 3d30c4d2116b1dd074c294c21f12c76ecacb2e1b |
| SHA256 | c45e295b5942abdafbf5cb1e04a5e9d504713658f194c2d5d33c029e71ef3966 |
| SHA512 | 332cf333a3c2b47848f0474732cad426e12d0208bc3798f2737ce1960ba3b74d67b4c94f95b470956abb0cc171988038b545f2a72c7f78fa0e9e7ca6e1a16465 |
memory/2364-17-0x0000000008000000-0x000000000800A000-memory.dmp
memory/4224-18-0x0000000008000000-0x000000000800A000-memory.dmp
memory/4224-26-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/4224-27-0x0000000008000000-0x000000000800A000-memory.dmp