Analysis Overview
SHA256
785cb749072741e5d7a7e95762d34d4c0dd7c76999e0fb7041e41eb51fd74e24
Threat Level: Known bad
The file 2024-06-13_17796d716e91697017ef0262b65e3522_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of CryptoLocker Variants
Detection of CryptoLocker Variants
Loads dropped DLL
Checks computer location settings
Executes dropped EXE
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-13 04:23
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 04:23
Reported
2024-06-13 04:26
Platform
win7-20240611-en
Max time kernel
148s
Max time network
152s
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 |
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_17796d716e91697017ef0262b65e3522_cryptolocker.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2260 wrote to memory of 1152 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_17796d716e91697017ef0262b65e3522_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 2260 wrote to memory of 1152 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_17796d716e91697017ef0262b65e3522_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 2260 wrote to memory of 1152 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_17796d716e91697017ef0262b65e3522_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 2260 wrote to memory of 1152 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_17796d716e91697017ef0262b65e3522_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_17796d716e91697017ef0262b65e3522_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_17796d716e91697017ef0262b65e3522_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/2260-0-0x0000000008000000-0x000000000800A000-memory.dmp
memory/2260-1-0x0000000000290000-0x0000000000296000-memory.dmp
memory/2260-9-0x0000000000290000-0x0000000000296000-memory.dmp
memory/2260-2-0x00000000002B0000-0x00000000002B6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\hasfj.exe
| MD5 | 3759576387ef77df9d76b6d6f98859ea |
| SHA1 | bd53a40ea655276a9470054c41ac99bec5f3f020 |
| SHA256 | 98960f1745acdcfc7d66b11dc116213c6c1b6eee59fe2e466a7c33450f0b7b4a |
| SHA512 | b48b1531852e62f4d16e803c79950ed77a59fd715bf4a01f82ff2c8b7e2a5841a64b1a2d1e4c62907fef9c65af034e76475bb45a8736069610aed9b43345d4f0 |
memory/2260-14-0x0000000008000000-0x000000000800A000-memory.dmp
memory/1152-17-0x0000000000320000-0x0000000000326000-memory.dmp
memory/1152-24-0x0000000000300000-0x0000000000306000-memory.dmp
memory/1152-25-0x0000000008000000-0x000000000800A000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-13 04:23
Reported
2024-06-13 04:26
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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-13_17796d716e91697017ef0262b65e3522_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 2604 wrote to memory of 2116 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_17796d716e91697017ef0262b65e3522_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 2604 wrote to memory of 2116 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_17796d716e91697017ef0262b65e3522_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 2604 wrote to memory of 2116 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_17796d716e91697017ef0262b65e3522_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_17796d716e91697017ef0262b65e3522_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_17796d716e91697017ef0262b65e3522_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/2604-0-0x0000000008000000-0x000000000800A000-memory.dmp
memory/2604-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/2604-2-0x0000000003150000-0x0000000003156000-memory.dmp
memory/2604-9-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\hasfj.exe
| MD5 | 3759576387ef77df9d76b6d6f98859ea |
| SHA1 | bd53a40ea655276a9470054c41ac99bec5f3f020 |
| SHA256 | 98960f1745acdcfc7d66b11dc116213c6c1b6eee59fe2e466a7c33450f0b7b4a |
| SHA512 | b48b1531852e62f4d16e803c79950ed77a59fd715bf4a01f82ff2c8b7e2a5841a64b1a2d1e4c62907fef9c65af034e76475bb45a8736069610aed9b43345d4f0 |
memory/2116-17-0x0000000008000000-0x000000000800A000-memory.dmp
memory/2604-18-0x0000000008000000-0x000000000800A000-memory.dmp
memory/2116-20-0x0000000002150000-0x0000000002156000-memory.dmp
memory/2116-26-0x0000000002110000-0x0000000002116000-memory.dmp
memory/2116-27-0x0000000008000000-0x000000000800A000-memory.dmp