Analysis Overview
SHA256
4b688fe2e27583a9abfc9e0a6a677adee75a219c6826061a19125cacd9c5e113
Threat Level: Known bad
The file 2024-06-13_638ce153037eb5ccc5ba83f3d406b317_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 WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-13 03:34
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 03:34
Reported
2024-06-13 03:37
Platform
win7-20240221-en
Max time kernel
149s
Max time network
150s
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\hasfj.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_638ce153037eb5ccc5ba83f3d406b317_cryptolocker.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2172 wrote to memory of 3064 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_638ce153037eb5ccc5ba83f3d406b317_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 2172 wrote to memory of 3064 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_638ce153037eb5ccc5ba83f3d406b317_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 2172 wrote to memory of 3064 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_638ce153037eb5ccc5ba83f3d406b317_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 2172 wrote to memory of 3064 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_638ce153037eb5ccc5ba83f3d406b317_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_638ce153037eb5ccc5ba83f3d406b317_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_638ce153037eb5ccc5ba83f3d406b317_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/2172-0-0x0000000000310000-0x0000000000316000-memory.dmp
memory/2172-1-0x0000000000320000-0x0000000000326000-memory.dmp
memory/2172-8-0x0000000000310000-0x0000000000316000-memory.dmp
\Users\Admin\AppData\Local\Temp\hasfj.exe
| MD5 | 522f16518e12602315f9eaa5106e6177 |
| SHA1 | 9ac59b8b240aa9d6791419391fa62716b51a4586 |
| SHA256 | 23414d803eb6905b656f04b815ee7e9b83aa5f9638664cc044b7dd88d8ad883a |
| SHA512 | a9214cd6fc59b1fdb66853f6945762b7dfd90c8f282ea74ee38b24ae37f2b3b121f906e3e4a5c7a55ad85eea32d814c75b93d0a6f0cbcc90250af16243020892 |
memory/3064-22-0x0000000000480000-0x0000000000486000-memory.dmp
memory/3064-15-0x0000000000490000-0x0000000000496000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-13 03:34
Reported
2024-06-13 03:37
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 |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-13_638ce153037eb5ccc5ba83f3d406b317_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 4868 wrote to memory of 3096 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_638ce153037eb5ccc5ba83f3d406b317_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 4868 wrote to memory of 3096 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_638ce153037eb5ccc5ba83f3d406b317_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 4868 wrote to memory of 3096 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_638ce153037eb5ccc5ba83f3d406b317_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_638ce153037eb5ccc5ba83f3d406b317_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_638ce153037eb5ccc5ba83f3d406b317_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 | 8.8.8.8.in-addr.arpa | 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 |
| US | 8.8.8.8:53 | mytarta.com | udp |
Files
memory/4868-0-0x0000000002180000-0x0000000002186000-memory.dmp
memory/4868-1-0x0000000002200000-0x0000000002206000-memory.dmp
memory/4868-8-0x0000000002180000-0x0000000002186000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\hasfj.exe
| MD5 | 522f16518e12602315f9eaa5106e6177 |
| SHA1 | 9ac59b8b240aa9d6791419391fa62716b51a4586 |
| SHA256 | 23414d803eb6905b656f04b815ee7e9b83aa5f9638664cc044b7dd88d8ad883a |
| SHA512 | a9214cd6fc59b1fdb66853f6945762b7dfd90c8f282ea74ee38b24ae37f2b3b121f906e3e4a5c7a55ad85eea32d814c75b93d0a6f0cbcc90250af16243020892 |
memory/3096-17-0x0000000003150000-0x0000000003156000-memory.dmp
memory/3096-23-0x0000000002EA0000-0x0000000002EA6000-memory.dmp