Analysis Overview
SHA256
493e847e11da2f138088b71f0f6e7be58a5f131c6aa6a7c688cd233d5e4d8cd5
Threat Level: Known bad
The file 2024-06-13_68f9b80fa62126d747afb496d4d6e20b_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of CryptoLocker Variants
UPX dump on OEP (original entry point)
Detection of CryptoLocker Variants
UPX dump on OEP (original entry point)
Checks computer location settings
UPX packed file
Executes dropped EXE
Loads dropped DLL
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-13 11:47
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 11:47
Reported
2024-06-13 11:49
Platform
win7-20240611-en
Max time kernel
149s
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 |
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_68f9b80fa62126d747afb496d4d6e20b_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 1556 wrote to memory of 2440 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_68f9b80fa62126d747afb496d4d6e20b_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 1556 wrote to memory of 2440 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_68f9b80fa62126d747afb496d4d6e20b_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 1556 wrote to memory of 2440 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_68f9b80fa62126d747afb496d4d6e20b_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 1556 wrote to memory of 2440 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_68f9b80fa62126d747afb496d4d6e20b_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_68f9b80fa62126d747afb496d4d6e20b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_68f9b80fa62126d747afb496d4d6e20b_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/1556-0-0x0000000008000000-0x000000000800F000-memory.dmp
memory/1556-1-0x00000000002C0000-0x00000000002C6000-memory.dmp
memory/1556-2-0x0000000000460000-0x0000000000466000-memory.dmp
memory/1556-9-0x00000000002C0000-0x00000000002C6000-memory.dmp
\Users\Admin\AppData\Local\Temp\lossy.exe
| MD5 | 42b86aff9b7d65e56d1171f88a7e2db8 |
| SHA1 | 2aeebef86d6080f0296a3e342bf9f80b63907611 |
| SHA256 | 8c3ab61c7c6d6b07aebc82db53a138d14acd2a63ceb02ec2d655b6f328b17202 |
| SHA512 | ea0e058c91ccf5e433cde8d92bd7bf4d028137924130013c351f3116ba6fc678097dcae7c1c2a8cd670150ee2ebdbeadea44ec66c824c32bcb45cee856674ba5 |
memory/1556-15-0x0000000008000000-0x000000000800F000-memory.dmp
memory/2440-16-0x0000000008000000-0x000000000800F000-memory.dmp
memory/2440-18-0x00000000001D0000-0x00000000001D6000-memory.dmp
memory/2440-19-0x0000000000290000-0x0000000000296000-memory.dmp
memory/2440-26-0x0000000008000000-0x000000000800F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-13 11:47
Reported
2024-06-13 11:49
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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-13_68f9b80fa62126d747afb496d4d6e20b_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 776 wrote to memory of 4048 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_68f9b80fa62126d747afb496d4d6e20b_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 776 wrote to memory of 4048 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_68f9b80fa62126d747afb496d4d6e20b_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 776 wrote to memory of 4048 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_68f9b80fa62126d747afb496d4d6e20b_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_68f9b80fa62126d747afb496d4d6e20b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_68f9b80fa62126d747afb496d4d6e20b_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 | 8.8.8.8.in-addr.arpa | 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 |
| US | 8.8.8.8:53 | 2ndry.com | udp |
Files
memory/776-0-0x0000000008000000-0x000000000800F000-memory.dmp
memory/776-1-0x00000000005B0000-0x00000000005B6000-memory.dmp
memory/776-2-0x0000000002100000-0x0000000002106000-memory.dmp
memory/776-9-0x00000000005B0000-0x00000000005B6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\lossy.exe
| MD5 | 42b86aff9b7d65e56d1171f88a7e2db8 |
| SHA1 | 2aeebef86d6080f0296a3e342bf9f80b63907611 |
| SHA256 | 8c3ab61c7c6d6b07aebc82db53a138d14acd2a63ceb02ec2d655b6f328b17202 |
| SHA512 | ea0e058c91ccf5e433cde8d92bd7bf4d028137924130013c351f3116ba6fc678097dcae7c1c2a8cd670150ee2ebdbeadea44ec66c824c32bcb45cee856674ba5 |
memory/776-17-0x0000000008000000-0x000000000800F000-memory.dmp
memory/4048-18-0x0000000008000000-0x000000000800F000-memory.dmp
memory/4048-20-0x0000000000640000-0x0000000000646000-memory.dmp
memory/4048-26-0x0000000000590000-0x0000000000596000-memory.dmp
memory/4048-27-0x0000000008000000-0x000000000800F000-memory.dmp