Analysis Overview
SHA256
58a72dbd3104b672f2d0d2f4ea941a9eb5a9edd695b987058e71a62cf10f6777
Threat Level: Known bad
The file 2024-06-09_b2e65c6612e492dd5a6dde83c8bcc69d_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of CryptoLocker Variants
Detection of CryptoLocker Variants
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-09 07:34
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
2024-06-09 07:34
Reported
2024-06-09 07:36
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\2024-06-09_b2e65c6612e492dd5a6dde83c8bcc69d_cryptolocker.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 836 wrote to memory of 2356 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-09_b2e65c6612e492dd5a6dde83c8bcc69d_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 836 wrote to memory of 2356 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-09_b2e65c6612e492dd5a6dde83c8bcc69d_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 836 wrote to memory of 2356 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-09_b2e65c6612e492dd5a6dde83c8bcc69d_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 836 wrote to memory of 2356 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-09_b2e65c6612e492dd5a6dde83c8bcc69d_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-09_b2e65c6612e492dd5a6dde83c8bcc69d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-09_b2e65c6612e492dd5a6dde83c8bcc69d_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/836-0-0x0000000008000000-0x000000000800D000-memory.dmp
memory/836-1-0x0000000000570000-0x0000000000576000-memory.dmp
memory/836-2-0x0000000001CF0000-0x0000000001CF6000-memory.dmp
memory/836-9-0x0000000000570000-0x0000000000576000-memory.dmp
\Users\Admin\AppData\Local\Temp\hasfj.exe
| MD5 | 7d06580faa717ce35a4ee67fd30f608b |
| SHA1 | d9331245195b818c6d71768d132c961be98ea3d8 |
| SHA256 | 61ee492bb71ed3357a9edc92fa7941d9c419969d122ecd88210bc3bd159055d2 |
| SHA512 | 8c0f257a46003eafbada48d8b2ffbfc120f1858d5e8d1f845ca1c8a6722bb61ed987cd8327afcb7d72b8ad32b8ca644372b2809d08ef27cba8ce5343940525f2 |
memory/836-15-0x0000000008000000-0x000000000800D000-memory.dmp
memory/2356-16-0x0000000008000000-0x000000000800D000-memory.dmp
memory/2356-18-0x0000000000500000-0x0000000000506000-memory.dmp
memory/2356-25-0x00000000004F0000-0x00000000004F6000-memory.dmp
memory/2356-26-0x0000000008000000-0x000000000800D000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-09 07:34
Reported
2024-06-09 07:36
Platform
win10v2004-20240508-en
Max time kernel
126s
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\2024-06-09_b2e65c6612e492dd5a6dde83c8bcc69d_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 4804 wrote to memory of 4444 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-09_b2e65c6612e492dd5a6dde83c8bcc69d_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 4804 wrote to memory of 4444 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-09_b2e65c6612e492dd5a6dde83c8bcc69d_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 4804 wrote to memory of 4444 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-09_b2e65c6612e492dd5a6dde83c8bcc69d_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-09_b2e65c6612e492dd5a6dde83c8bcc69d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-09_b2e65c6612e492dd5a6dde83c8bcc69d_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 | 241.150.49.20.in-addr.arpa | 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 | 4.159.190.20.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 | 133.211.185.52.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 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.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 | 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 | 144.107.17.2.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 |
| 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/4804-0-0x0000000008000000-0x000000000800D000-memory.dmp
memory/4804-1-0x0000000002D60000-0x0000000002D66000-memory.dmp
memory/4804-2-0x0000000003010000-0x0000000003016000-memory.dmp
memory/4804-9-0x0000000002D60000-0x0000000002D66000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\hasfj.exe
| MD5 | 7d06580faa717ce35a4ee67fd30f608b |
| SHA1 | d9331245195b818c6d71768d132c961be98ea3d8 |
| SHA256 | 61ee492bb71ed3357a9edc92fa7941d9c419969d122ecd88210bc3bd159055d2 |
| SHA512 | 8c0f257a46003eafbada48d8b2ffbfc120f1858d5e8d1f845ca1c8a6722bb61ed987cd8327afcb7d72b8ad32b8ca644372b2809d08ef27cba8ce5343940525f2 |
memory/4804-18-0x0000000008000000-0x000000000800D000-memory.dmp
memory/4444-17-0x0000000008000000-0x000000000800D000-memory.dmp
memory/4444-20-0x00000000022C0000-0x00000000022C6000-memory.dmp
memory/4444-26-0x0000000002110000-0x0000000002116000-memory.dmp
memory/4444-27-0x0000000008000000-0x000000000800D000-memory.dmp