Analysis Overview
SHA256
0691ae9be7b5052c7e8b48662f99712b5ec5b9603e072ad03de98b0a87251b8a
Threat Level: Known bad
The file 2024-06-13_d249eefcfc12cd75d04704a5b7549d15_cryptolocker was found to be: Known bad.
Malicious Activity Summary
UPX dump on OEP (original entry point)
Detection of CryptoLocker Variants
UPX dump on OEP (original entry point)
Detection of CryptoLocker Variants
Executes dropped EXE
Loads dropped DLL
UPX packed file
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
2024-06-13 03:50
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 |
UPX dump on OEP (original entry point)
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
UPX packed file
| 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 |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-13 03:50
Reported
2024-06-13 03:53
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 |
| N/A | N/A | N/A | N/A |
UPX dump on OEP (original entry point)
| 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 |
| 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\2024-06-13_d249eefcfc12cd75d04704a5b7549d15_cryptolocker.exe | N/A |
UPX packed file
| 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 |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1040 wrote to memory of 2872 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_d249eefcfc12cd75d04704a5b7549d15_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 1040 wrote to memory of 2872 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_d249eefcfc12cd75d04704a5b7549d15_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 1040 wrote to memory of 2872 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_d249eefcfc12cd75d04704a5b7549d15_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 1040 wrote to memory of 2872 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_d249eefcfc12cd75d04704a5b7549d15_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_d249eefcfc12cd75d04704a5b7549d15_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_d249eefcfc12cd75d04704a5b7549d15_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/1040-0-0x0000000008000000-0x000000000800E000-memory.dmp
memory/1040-1-0x00000000002A0000-0x00000000002A6000-memory.dmp
memory/1040-2-0x0000000000410000-0x0000000000416000-memory.dmp
memory/1040-9-0x00000000002A0000-0x00000000002A6000-memory.dmp
memory/1040-16-0x0000000008000000-0x000000000800E000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\hasfj.exe
| MD5 | 850e81000e0498744e75d9f0ac127368 |
| SHA1 | 3cf03ab1b3fc01c80528617c5cc5acfb8527ea64 |
| SHA256 | 20a0aef20e61f50e9b197f149f211604debab137afcbbf66e12c5da2aeb8ae0d |
| SHA512 | cf175366770562e3effd29e6d8a3d3799971ebddb66c070bde6ed885a5e788e86f2160471162bc6fd50b1e8f80aaa8a3303e21e81ad551f3d99e67d95c7b3ff0 |
memory/1040-14-0x00000000031F0000-0x00000000031FE000-memory.dmp
memory/2872-18-0x0000000008000000-0x000000000800E000-memory.dmp
memory/2872-20-0x0000000000330000-0x0000000000336000-memory.dmp
memory/2872-27-0x0000000000310000-0x0000000000316000-memory.dmp
memory/2872-28-0x0000000008000000-0x000000000800E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-13 03:50
Reported
2024-06-13 03:53
Platform
win10v2004-20240611-en
Max time kernel
150s
Max time network
149s
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 |
UPX dump on OEP (original entry point)
| 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-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-13_d249eefcfc12cd75d04704a5b7549d15_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 |
UPX packed file
| 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 |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3692 wrote to memory of 1572 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_d249eefcfc12cd75d04704a5b7549d15_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 3692 wrote to memory of 1572 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_d249eefcfc12cd75d04704a5b7549d15_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 3692 wrote to memory of 1572 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_d249eefcfc12cd75d04704a5b7549d15_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_d249eefcfc12cd75d04704a5b7549d15_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_d249eefcfc12cd75d04704a5b7549d15_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 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 203.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 194.61.62.23.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 | 26.165.165.52.in-addr.arpa | 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 | 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 | 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 | 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 | 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/3692-0-0x0000000008000000-0x000000000800E000-memory.dmp
memory/3692-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/3692-2-0x0000000003150000-0x0000000003156000-memory.dmp
memory/3692-9-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\hasfj.exe
| MD5 | 850e81000e0498744e75d9f0ac127368 |
| SHA1 | 3cf03ab1b3fc01c80528617c5cc5acfb8527ea64 |
| SHA256 | 20a0aef20e61f50e9b197f149f211604debab137afcbbf66e12c5da2aeb8ae0d |
| SHA512 | cf175366770562e3effd29e6d8a3d3799971ebddb66c070bde6ed885a5e788e86f2160471162bc6fd50b1e8f80aaa8a3303e21e81ad551f3d99e67d95c7b3ff0 |
memory/1572-19-0x0000000008000000-0x000000000800E000-memory.dmp
memory/3692-18-0x0000000008000000-0x000000000800E000-memory.dmp
memory/1572-21-0x0000000003010000-0x0000000003016000-memory.dmp
memory/1572-27-0x0000000002D60000-0x0000000002D66000-memory.dmp
memory/1572-28-0x0000000008000000-0x000000000800E000-memory.dmp