Analysis Overview
SHA256
25aea726f37bc9d0f7faf4d9ff77b8a5a245f4ddbc9e067d2c9e51b1a10f09ed
Threat Level: Known bad
The file 2024-06-12_90f6766a46b3df081a75420ddae5ee49_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of CryptoLocker Variants
Detection of Cryptolocker Samples
UPX dump on OEP (original entry point)
Detection of Cryptolocker Samples
Detection of CryptoLocker Variants
UPX dump on OEP (original entry point)
Checks computer location settings
Executes dropped EXE
UPX packed file
Loads dropped DLL
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-12 17:12
Signatures
Detection of CryptoLocker Variants
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detection of Cryptolocker Samples
| 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 |
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-12 17:12
Reported
2024-06-12 17:14
Platform
win10v2004-20240508-en
Max time kernel
150s
Max time network
148s
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 |
Detection of Cryptolocker Samples
| 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 |
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 |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-12_90f6766a46b3df081a75420ddae5ee49_cryptolocker.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\misid.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 |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 944 wrote to memory of 2400 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-12_90f6766a46b3df081a75420ddae5ee49_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
| PID 944 wrote to memory of 2400 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-12_90f6766a46b3df081a75420ddae5ee49_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
| PID 944 wrote to memory of 2400 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-12_90f6766a46b3df081a75420ddae5ee49_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-12_90f6766a46b3df081a75420ddae5ee49_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-12_90f6766a46b3df081a75420ddae5ee49_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
Files
memory/944-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/944-1-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/944-2-0x00000000004F0000-0x00000000004F6000-memory.dmp
memory/944-9-0x00000000004D0000-0x00000000004D6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\misid.exe
| MD5 | 5e1e9f81314314e24a6b385ce639fb08 |
| SHA1 | 968895b88e7f9e3ebb05ea831a63671bfd138824 |
| SHA256 | 788ec95743f58966f7dd61b8df1614cfe818b824d57ad6029f2f640031b4b3ea |
| SHA512 | 653201612e5fc83abba6e36b85b6dc5e17951451a5ada07aaf2ab7723d9fd1dabb89ab6056390d093bf679e6454b64d2f5ecb94deee83eeffc287f9ad8e5f89f |
memory/944-17-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2400-19-0x0000000000630000-0x0000000000636000-memory.dmp
memory/2400-20-0x0000000000660000-0x0000000000666000-memory.dmp
memory/2400-26-0x0000000000500000-0x0000000000510000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-12 17:12
Reported
2024-06-12 17:14
Platform
win7-20240508-en
Max time kernel
144s
Max time network
148s
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 |
Detection of Cryptolocker Samples
| 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\misid.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-12_90f6766a46b3df081a75420ddae5ee49_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 |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1964 wrote to memory of 2604 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-12_90f6766a46b3df081a75420ddae5ee49_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
| PID 1964 wrote to memory of 2604 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-12_90f6766a46b3df081a75420ddae5ee49_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
| PID 1964 wrote to memory of 2604 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-12_90f6766a46b3df081a75420ddae5ee49_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
| PID 1964 wrote to memory of 2604 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-12_90f6766a46b3df081a75420ddae5ee49_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-12_90f6766a46b3df081a75420ddae5ee49_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-12_90f6766a46b3df081a75420ddae5ee49_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
Files
memory/1964-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/1964-1-0x00000000002D0000-0x00000000002D6000-memory.dmp
memory/1964-9-0x00000000002D0000-0x00000000002D6000-memory.dmp
memory/1964-2-0x0000000000310000-0x0000000000316000-memory.dmp
\Users\Admin\AppData\Local\Temp\misid.exe
| MD5 | 5e1e9f81314314e24a6b385ce639fb08 |
| SHA1 | 968895b88e7f9e3ebb05ea831a63671bfd138824 |
| SHA256 | 788ec95743f58966f7dd61b8df1614cfe818b824d57ad6029f2f640031b4b3ea |
| SHA512 | 653201612e5fc83abba6e36b85b6dc5e17951451a5ada07aaf2ab7723d9fd1dabb89ab6056390d093bf679e6454b64d2f5ecb94deee83eeffc287f9ad8e5f89f |
memory/1964-13-0x0000000000680000-0x0000000000690000-memory.dmp
memory/2604-17-0x0000000000500000-0x0000000000510000-memory.dmp
memory/1964-16-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2604-26-0x00000000001D0000-0x00000000001D6000-memory.dmp
memory/2604-19-0x0000000000210000-0x0000000000216000-memory.dmp
memory/2604-27-0x0000000000500000-0x0000000000510000-memory.dmp