Analysis Overview
SHA256
9b1c41d6033da0c8d0c54eeb81a85d407ffa1c75460d50ea57d39b6754049cab
Threat Level: Known bad
The file 2024-06-06_d96edcbfe6c68fefb078b97efb388876_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
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-06 21:37
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
2024-06-06 21:37
Reported
2024-06-06 21:40
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\2024-06-06_d96edcbfe6c68fefb078b97efb388876_cryptolocker.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1368 wrote to memory of 1984 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-06_d96edcbfe6c68fefb078b97efb388876_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 1368 wrote to memory of 1984 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-06_d96edcbfe6c68fefb078b97efb388876_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 1368 wrote to memory of 1984 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-06_d96edcbfe6c68fefb078b97efb388876_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 1368 wrote to memory of 1984 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-06_d96edcbfe6c68fefb078b97efb388876_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-06_d96edcbfe6c68fefb078b97efb388876_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-06_d96edcbfe6c68fefb078b97efb388876_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/1368-0-0x0000000008000000-0x000000000800A000-memory.dmp
memory/1368-2-0x0000000000580000-0x0000000000586000-memory.dmp
memory/1368-1-0x0000000000570000-0x0000000000576000-memory.dmp
memory/1368-9-0x0000000000570000-0x0000000000576000-memory.dmp
\Users\Admin\AppData\Local\Temp\hasfj.exe
| MD5 | f7436186c2049f49faac04a2b6c63e26 |
| SHA1 | c4afb680357e579ba7172331f3a692056132b812 |
| SHA256 | 67c592e441323b9ebba8d74310ee5aba4c2f4e090b067d839b726684eaff41da |
| SHA512 | c4ee5f8f310f56f884a4b065036309020148645969ac6570d0cd07319e1ff81575cc6802efc5a59d367cb099d0b80d373619526ec77e6d00579468f81e2acc45 |
memory/1368-14-0x0000000008000000-0x000000000800A000-memory.dmp
memory/1984-16-0x0000000008000000-0x000000000800A000-memory.dmp
memory/1984-18-0x0000000001C10000-0x0000000001C16000-memory.dmp
memory/1984-25-0x0000000001C00000-0x0000000001C06000-memory.dmp
memory/1984-26-0x0000000008000000-0x000000000800A000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-06 21:37
Reported
2024-06-06 21:40
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\2024-06-06_d96edcbfe6c68fefb078b97efb388876_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 4940 wrote to memory of 1112 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-06_d96edcbfe6c68fefb078b97efb388876_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 4940 wrote to memory of 1112 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-06_d96edcbfe6c68fefb078b97efb388876_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 4940 wrote to memory of 1112 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-06_d96edcbfe6c68fefb078b97efb388876_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-06_d96edcbfe6c68fefb078b97efb388876_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-06_d96edcbfe6c68fefb078b97efb388876_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 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | 68.159.190.20.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 |
| BE | 2.17.107.123:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | 123.107.17.2.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 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | 15.164.165.52.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 | mytarta.com | udp |
| US | 8.8.8.8:53 | 131.83.221.88.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 | 55.36.223.20.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 | 105.83.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.236.111.52.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 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | 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 | 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 |
Files
memory/4940-0-0x0000000008000000-0x000000000800A000-memory.dmp
memory/4940-1-0x0000000002120000-0x0000000002126000-memory.dmp
memory/4940-2-0x0000000003150000-0x0000000003156000-memory.dmp
memory/4940-9-0x0000000002120000-0x0000000002126000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\hasfj.exe
| MD5 | f7436186c2049f49faac04a2b6c63e26 |
| SHA1 | c4afb680357e579ba7172331f3a692056132b812 |
| SHA256 | 67c592e441323b9ebba8d74310ee5aba4c2f4e090b067d839b726684eaff41da |
| SHA512 | c4ee5f8f310f56f884a4b065036309020148645969ac6570d0cd07319e1ff81575cc6802efc5a59d367cb099d0b80d373619526ec77e6d00579468f81e2acc45 |
memory/1112-17-0x0000000008000000-0x000000000800A000-memory.dmp
memory/4940-18-0x0000000008000000-0x000000000800A000-memory.dmp
memory/1112-20-0x0000000003010000-0x0000000003016000-memory.dmp
memory/1112-26-0x0000000002110000-0x0000000002116000-memory.dmp
memory/1112-27-0x0000000008000000-0x000000000800A000-memory.dmp