Analysis Overview
SHA256
352735d3a0c69ef97f9d6f58f81db95c0ce112b1f008d01e4e7ae063bc35f2a6
Threat Level: Known bad
The file 2024-05-26_acb5f9593fcbd0f21f2215510aead60e_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
2024-05-26 03:50
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
2024-05-26 03:50
Reported
2024-05-26 03:52
Platform
win7-20240508-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\2024-05-26_acb5f9593fcbd0f21f2215510aead60e_cryptolocker.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2156 wrote to memory of 2484 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-26_acb5f9593fcbd0f21f2215510aead60e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 2156 wrote to memory of 2484 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-26_acb5f9593fcbd0f21f2215510aead60e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 2156 wrote to memory of 2484 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-26_acb5f9593fcbd0f21f2215510aead60e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 2156 wrote to memory of 2484 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-26_acb5f9593fcbd0f21f2215510aead60e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-26_acb5f9593fcbd0f21f2215510aead60e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-26_acb5f9593fcbd0f21f2215510aead60e_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/2156-0-0x0000000008000000-0x000000000800D000-memory.dmp
memory/2156-1-0x00000000004B0000-0x00000000004B6000-memory.dmp
memory/2156-2-0x00000000004C0000-0x00000000004C6000-memory.dmp
memory/2156-9-0x00000000004B0000-0x00000000004B6000-memory.dmp
\Users\Admin\AppData\Local\Temp\hasfj.exe
| MD5 | e681514b47dacff2c328674ec5afdd36 |
| SHA1 | 9ed4acdea0a9bfb1d363298ca16e52a550edd060 |
| SHA256 | 479d78e41422c92adb94c6b482ab4109c80da31fb3e4839dbf74e82c03da6b55 |
| SHA512 | 1adf09eb5dc56f6c0ea6cce616e0846dbabcbe07441ad1ebee45ac9f342ba2c4852bb63cdb291a1456b21f7bcf0427512b0e1179675995aa9d0c1d7506aa02f4 |
memory/2156-13-0x0000000003530000-0x000000000353D000-memory.dmp
memory/2156-16-0x0000000008000000-0x000000000800D000-memory.dmp
memory/2484-18-0x0000000000540000-0x0000000000546000-memory.dmp
memory/2484-25-0x0000000000530000-0x0000000000536000-memory.dmp
memory/2484-26-0x0000000008000000-0x000000000800D000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-26 03:50
Reported
2024-05-26 03:52
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 |
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\2024-05-26_acb5f9593fcbd0f21f2215510aead60e_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 1288 wrote to memory of 2416 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-26_acb5f9593fcbd0f21f2215510aead60e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 1288 wrote to memory of 2416 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-26_acb5f9593fcbd0f21f2215510aead60e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 1288 wrote to memory of 2416 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-26_acb5f9593fcbd0f21f2215510aead60e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-26_acb5f9593fcbd0f21f2215510aead60e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-26_acb5f9593fcbd0f21f2215510aead60e_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 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| NL | 23.62.61.97:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 97.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | 28.118.140.52.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 | mytarta.com | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.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 | 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 |
Files
memory/1288-0-0x0000000008000000-0x000000000800D000-memory.dmp
memory/1288-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/1288-2-0x0000000003150000-0x0000000003156000-memory.dmp
memory/1288-9-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\hasfj.exe
| MD5 | e681514b47dacff2c328674ec5afdd36 |
| SHA1 | 9ed4acdea0a9bfb1d363298ca16e52a550edd060 |
| SHA256 | 479d78e41422c92adb94c6b482ab4109c80da31fb3e4839dbf74e82c03da6b55 |
| SHA512 | 1adf09eb5dc56f6c0ea6cce616e0846dbabcbe07441ad1ebee45ac9f342ba2c4852bb63cdb291a1456b21f7bcf0427512b0e1179675995aa9d0c1d7506aa02f4 |
memory/1288-17-0x0000000008000000-0x000000000800D000-memory.dmp
memory/2416-19-0x0000000002ED0000-0x0000000002ED6000-memory.dmp
memory/2416-25-0x0000000002D60000-0x0000000002D66000-memory.dmp
memory/2416-26-0x0000000008000000-0x000000000800D000-memory.dmp