Analysis Overview
SHA256
0052586317d6b2cbdc0ba65c9bbe5c95202847f204f83b1f18e1105aaa28f263
Threat Level: Known bad
The file 2024-05-31_672195f5397ff7237fd9837d48404695_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of CryptoLocker Variants
Detection of CryptoLocker Variants
Loads dropped DLL
Executes dropped EXE
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
2024-05-31 15:45
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
2024-05-31 15:45
Reported
2024-05-31 15:48
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 |
| 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\2024-05-31_672195f5397ff7237fd9837d48404695_cryptolocker.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2244 wrote to memory of 3040 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_672195f5397ff7237fd9837d48404695_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 2244 wrote to memory of 3040 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_672195f5397ff7237fd9837d48404695_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 2244 wrote to memory of 3040 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_672195f5397ff7237fd9837d48404695_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 2244 wrote to memory of 3040 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_672195f5397ff7237fd9837d48404695_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-31_672195f5397ff7237fd9837d48404695_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-31_672195f5397ff7237fd9837d48404695_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/2244-1-0x0000000008000000-0x000000000800D000-memory.dmp
memory/2244-0-0x0000000001CE0000-0x0000000001CE6000-memory.dmp
memory/2244-2-0x0000000001CF0000-0x0000000001CF6000-memory.dmp
memory/2244-9-0x0000000001CE0000-0x0000000001CE6000-memory.dmp
\Users\Admin\AppData\Local\Temp\hasfj.exe
| MD5 | a80fd7bcf44fd4baadeb854b0d3e94fc |
| SHA1 | 9ee10e60fedc1c111ca74d154b71ad500c640e33 |
| SHA256 | bfb9c4c9e329c4939f1887e22fb21d5b41105dcab93c3b089fcd33780dd30867 |
| SHA512 | 74f33c1a33b734f56e0551f74990a02f0f4ff64e5a739ed055123cbef90e6e83e3d47d5d9faf694bed1c3e84f22c7c5e172a61878ef8a63ecdffb0f4c6bab99f |
memory/2244-14-0x0000000008000000-0x000000000800D000-memory.dmp
memory/3040-16-0x0000000008000000-0x000000000800D000-memory.dmp
memory/3040-19-0x0000000000580000-0x0000000000586000-memory.dmp
memory/3040-18-0x0000000000360000-0x0000000000366000-memory.dmp
memory/3040-26-0x0000000008000000-0x000000000800D000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-31 15:45
Reported
2024-05-31 15:48
Platform
win10v2004-20240508-en
Max time kernel
150s
Max time network
153s
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 |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-05-31_672195f5397ff7237fd9837d48404695_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 4292 wrote to memory of 3108 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_672195f5397ff7237fd9837d48404695_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 4292 wrote to memory of 3108 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_672195f5397ff7237fd9837d48404695_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 4292 wrote to memory of 3108 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_672195f5397ff7237fd9837d48404695_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-31_672195f5397ff7237fd9837d48404695_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-31_672195f5397ff7237fd9837d48404695_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 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| NL | 23.62.61.129:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 129.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.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 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.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 | 82.90.14.23.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 | 11.227.111.52.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 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.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 | 73.239.69.13.in-addr.arpa | udp |
Files
memory/4292-0-0x0000000008000000-0x000000000800D000-memory.dmp
memory/4292-1-0x00000000006F0000-0x00000000006F6000-memory.dmp
memory/4292-2-0x0000000000720000-0x0000000000726000-memory.dmp
memory/4292-9-0x00000000006F0000-0x00000000006F6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\hasfj.exe
| MD5 | a80fd7bcf44fd4baadeb854b0d3e94fc |
| SHA1 | 9ee10e60fedc1c111ca74d154b71ad500c640e33 |
| SHA256 | bfb9c4c9e329c4939f1887e22fb21d5b41105dcab93c3b089fcd33780dd30867 |
| SHA512 | 74f33c1a33b734f56e0551f74990a02f0f4ff64e5a739ed055123cbef90e6e83e3d47d5d9faf694bed1c3e84f22c7c5e172a61878ef8a63ecdffb0f4c6bab99f |
memory/4292-17-0x0000000008000000-0x000000000800D000-memory.dmp
memory/3108-19-0x0000000003010000-0x0000000003016000-memory.dmp
memory/3108-25-0x0000000002D60000-0x0000000002D66000-memory.dmp
memory/3108-26-0x0000000008000000-0x000000000800D000-memory.dmp