Analysis Overview
SHA256
f3adf94240a3396e44bcc9475de611f93a10e3853681a2ad940361335563b2e1
Threat Level: Known bad
The file 2024-06-13_819980b814d29b3229fc4092e30a72d4_cryptolocker was found to be: Known bad.
Malicious Activity Summary
UPX dump on OEP (original entry point)
Detection of CryptoLocker Variants
Detection of CryptoLocker Variants
UPX dump on OEP (original entry point)
Checks computer location settings
Loads dropped DLL
UPX packed file
Executes dropped EXE
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-13 03:41
Signatures
Detection of CryptoLocker Variants
| Description | Indicator | Process | Target |
| 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 |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-13 03:41
Reported
2024-06-13 03:43
Platform
win7-20240611-en
Max time kernel
148s
Max time network
154s
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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\lossy.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_819980b814d29b3229fc4092e30a72d4_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 |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1720 wrote to memory of 2572 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_819980b814d29b3229fc4092e30a72d4_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 1720 wrote to memory of 2572 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_819980b814d29b3229fc4092e30a72d4_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 1720 wrote to memory of 2572 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_819980b814d29b3229fc4092e30a72d4_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 1720 wrote to memory of 2572 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_819980b814d29b3229fc4092e30a72d4_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_819980b814d29b3229fc4092e30a72d4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_819980b814d29b3229fc4092e30a72d4_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\lossy.exe
"C:\Users\Admin\AppData\Local\Temp\lossy.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 2ndry.com | udp |
Files
memory/1720-0-0x0000000008000000-0x000000000800F000-memory.dmp
memory/1720-1-0x00000000002C0000-0x00000000002C6000-memory.dmp
memory/1720-8-0x00000000002C0000-0x00000000002C6000-memory.dmp
memory/1720-2-0x0000000000300000-0x0000000000306000-memory.dmp
\Users\Admin\AppData\Local\Temp\lossy.exe
| MD5 | dcc0ebf18547f2056f5dfde1085d8f87 |
| SHA1 | c983c47824db1fd3fea09479720c14ab58ec42ca |
| SHA256 | f8ce3c97cc199554c8184aa6d32f9b320d97ba40d4f1c6ad4090147c6ef6cd84 |
| SHA512 | c97affd66ec25cebaf3049b51defe906e5218c4adf110e6cd3c7f26044de762f7e758c17edc03ec4e04e5c07469d49a4f72cc54288e9dc7931941744556680a0 |
memory/2572-16-0x0000000008000000-0x000000000800F000-memory.dmp
memory/1720-14-0x0000000008000000-0x000000000800F000-memory.dmp
memory/2572-18-0x0000000000200000-0x0000000000206000-memory.dmp
memory/2572-25-0x00000000001D0000-0x00000000001D6000-memory.dmp
memory/2572-26-0x0000000008000000-0x000000000800F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-13 03:41
Reported
2024-06-13 03:43
Platform
win10v2004-20240508-en
Max time kernel
150s
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 |
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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-13_819980b814d29b3229fc4092e30a72d4_cryptolocker.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\lossy.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 1892 wrote to memory of 4852 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_819980b814d29b3229fc4092e30a72d4_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 1892 wrote to memory of 4852 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_819980b814d29b3229fc4092e30a72d4_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 1892 wrote to memory of 4852 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_819980b814d29b3229fc4092e30a72d4_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_819980b814d29b3229fc4092e30a72d4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_819980b814d29b3229fc4092e30a72d4_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\lossy.exe
"C:\Users\Admin\AppData\Local\Temp\lossy.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
Files
memory/1892-0-0x0000000008000000-0x000000000800F000-memory.dmp
memory/1892-1-0x00000000005C0000-0x00000000005C6000-memory.dmp
memory/1892-3-0x0000000002060000-0x0000000002066000-memory.dmp
memory/1892-2-0x00000000005C0000-0x00000000005C6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\lossy.exe
| MD5 | dcc0ebf18547f2056f5dfde1085d8f87 |
| SHA1 | c983c47824db1fd3fea09479720c14ab58ec42ca |
| SHA256 | f8ce3c97cc199554c8184aa6d32f9b320d97ba40d4f1c6ad4090147c6ef6cd84 |
| SHA512 | c97affd66ec25cebaf3049b51defe906e5218c4adf110e6cd3c7f26044de762f7e758c17edc03ec4e04e5c07469d49a4f72cc54288e9dc7931941744556680a0 |
memory/1892-17-0x0000000008000000-0x000000000800F000-memory.dmp
memory/4852-18-0x0000000008000000-0x000000000800F000-memory.dmp
memory/4852-20-0x0000000000590000-0x0000000000596000-memory.dmp
memory/4852-26-0x0000000000490000-0x0000000000496000-memory.dmp
memory/4852-27-0x0000000008000000-0x000000000800F000-memory.dmp