Analysis Overview
SHA256
da2292a4414b522ea769a560959d23130b04ffc22e50f8a4f2ad2d766260654f
Threat Level: Known bad
The file 2024-06-02_5b05b179fbc39ae636e3186687ebc46d_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of CryptoLocker Variants
Detection of CryptoLocker Variants
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-02 23:09
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: behavioral2
Detonation Overview
Submitted
2024-06-02 23:09
Reported
2024-06-02 23:12
Platform
win10v2004-20240508-en
Max time kernel
150s
Max time network
147s
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\2024-06-02_5b05b179fbc39ae636e3186687ebc46d_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 1416 wrote to memory of 116 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_5b05b179fbc39ae636e3186687ebc46d_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 1416 wrote to memory of 116 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_5b05b179fbc39ae636e3186687ebc46d_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 1416 wrote to memory of 116 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_5b05b179fbc39ae636e3186687ebc46d_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-02_5b05b179fbc39ae636e3186687ebc46d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-02_5b05b179fbc39ae636e3186687ebc46d_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 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | 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 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mytarta.com | 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 | 172.210.232.199.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 | 26.35.223.20.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 | 29.243.111.52.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 | 55.36.223.20.in-addr.arpa | 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 | 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/1416-0-0x0000000008000000-0x000000000800D000-memory.dmp
memory/1416-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/1416-2-0x0000000003050000-0x0000000003056000-memory.dmp
memory/1416-9-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\hasfj.exe
| MD5 | e786e06e46b552c28aef133d754dab01 |
| SHA1 | cd6892debbc8c19ca82687b08dcc977741c83cd7 |
| SHA256 | 68b66e8a4b89b8c9c2f3d1e0bc24134e1776280f61a50a3ec759bf01968cc75e |
| SHA512 | 7e0c0f0c53c46d202baa7c9608f837cd687a2f3b2e9ee9bf23de15bf6a84e54b40e3d7c5e5e7d4c95f775ae71c8a4874ecde9e820d63f9bcc7a6630020636095 |
memory/116-17-0x0000000008000000-0x000000000800D000-memory.dmp
memory/1416-18-0x0000000008000000-0x000000000800D000-memory.dmp
memory/116-20-0x0000000003150000-0x0000000003156000-memory.dmp
memory/116-26-0x0000000008000000-0x000000000800D000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-02 23:09
Reported
2024-06-02 23:12
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\2024-06-02_5b05b179fbc39ae636e3186687ebc46d_cryptolocker.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2228 wrote to memory of 2840 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_5b05b179fbc39ae636e3186687ebc46d_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 2228 wrote to memory of 2840 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_5b05b179fbc39ae636e3186687ebc46d_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 2228 wrote to memory of 2840 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_5b05b179fbc39ae636e3186687ebc46d_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 2228 wrote to memory of 2840 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_5b05b179fbc39ae636e3186687ebc46d_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-02_5b05b179fbc39ae636e3186687ebc46d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-02_5b05b179fbc39ae636e3186687ebc46d_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/2228-0-0x0000000008000000-0x000000000800D000-memory.dmp
memory/2228-2-0x00000000002B0000-0x00000000002B6000-memory.dmp
memory/2228-1-0x00000000002A0000-0x00000000002A6000-memory.dmp
memory/2228-9-0x00000000002A0000-0x00000000002A6000-memory.dmp
\Users\Admin\AppData\Local\Temp\hasfj.exe
| MD5 | e786e06e46b552c28aef133d754dab01 |
| SHA1 | cd6892debbc8c19ca82687b08dcc977741c83cd7 |
| SHA256 | 68b66e8a4b89b8c9c2f3d1e0bc24134e1776280f61a50a3ec759bf01968cc75e |
| SHA512 | 7e0c0f0c53c46d202baa7c9608f837cd687a2f3b2e9ee9bf23de15bf6a84e54b40e3d7c5e5e7d4c95f775ae71c8a4874ecde9e820d63f9bcc7a6630020636095 |
memory/2840-16-0x0000000008000000-0x000000000800D000-memory.dmp
memory/2228-15-0x0000000008000000-0x000000000800D000-memory.dmp
memory/2840-25-0x0000000008000000-0x000000000800D000-memory.dmp