Analysis Overview
SHA256
71c870e5917f1267c6c70fcbd3937e88210a72296f6ffd904feb1949f5b2bd96
Threat Level: Known bad
The file 2024-06-13_7749bc1e7c42c536d05977b77fe9b7df_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of CryptoLocker Variants
Detection of Cryptolocker Samples
Detection of Cryptolocker Samples
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
2024-06-13 02:54
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 |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-13 02:54
Reported
2024-06-13 02:57
Platform
win7-20240419-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 |
Detection of Cryptolocker Samples
| Description | Indicator | Process | Target |
| 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\2024-06-13_7749bc1e7c42c536d05977b77fe9b7df_cryptolocker.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2036 wrote to memory of 2544 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_7749bc1e7c42c536d05977b77fe9b7df_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
| PID 2036 wrote to memory of 2544 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_7749bc1e7c42c536d05977b77fe9b7df_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
| PID 2036 wrote to memory of 2544 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_7749bc1e7c42c536d05977b77fe9b7df_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
| PID 2036 wrote to memory of 2544 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_7749bc1e7c42c536d05977b77fe9b7df_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_7749bc1e7c42c536d05977b77fe9b7df_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_7749bc1e7c42c536d05977b77fe9b7df_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/2036-0-0x00000000001C0000-0x00000000001C6000-memory.dmp
memory/2036-1-0x00000000003F0000-0x00000000003F6000-memory.dmp
memory/2036-8-0x00000000001C0000-0x00000000001C6000-memory.dmp
\Users\Admin\AppData\Local\Temp\misid.exe
| MD5 | dcbe97c20f574391ffce247103b9b645 |
| SHA1 | 4a8c64548d99028999efc412c797444919ffa4b8 |
| SHA256 | 415e30dfd53d4d78229cf8b018eec97ebcfdfec2d4d99b3f32cbd5e941258434 |
| SHA512 | 296939c94c6a9fa2c7a929d3568db039e93ce6f94688978af5e8e230817f276ae2d79ccb801e256c6e8f43e61e1475baa39426f53d43f181b6ff70324ee78b9b |
memory/2544-15-0x0000000000290000-0x0000000000296000-memory.dmp
memory/2544-22-0x00000000001D0000-0x00000000001D6000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-13 02:54
Reported
2024-06-13 02:57
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 |
Detection of Cryptolocker Samples
| Description | Indicator | Process | Target |
| 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_7749bc1e7c42c536d05977b77fe9b7df_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 |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1500 wrote to memory of 456 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_7749bc1e7c42c536d05977b77fe9b7df_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
| PID 1500 wrote to memory of 456 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_7749bc1e7c42c536d05977b77fe9b7df_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
| PID 1500 wrote to memory of 456 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_7749bc1e7c42c536d05977b77fe9b7df_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_7749bc1e7c42c536d05977b77fe9b7df_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_7749bc1e7c42c536d05977b77fe9b7df_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 | 8.8.8.8.in-addr.arpa | 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 |
| US | 8.8.8.8:53 | bestccc.com | udp |
Files
memory/1500-0-0x00000000005B0000-0x00000000005B6000-memory.dmp
memory/1500-2-0x00000000005D0000-0x00000000005D6000-memory.dmp
memory/1500-8-0x00000000005B0000-0x00000000005B6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\misid.exe
| MD5 | dcbe97c20f574391ffce247103b9b645 |
| SHA1 | 4a8c64548d99028999efc412c797444919ffa4b8 |
| SHA256 | 415e30dfd53d4d78229cf8b018eec97ebcfdfec2d4d99b3f32cbd5e941258434 |
| SHA512 | 296939c94c6a9fa2c7a929d3568db039e93ce6f94688978af5e8e230817f276ae2d79ccb801e256c6e8f43e61e1475baa39426f53d43f181b6ff70324ee78b9b |
memory/456-17-0x00000000006D0000-0x00000000006D6000-memory.dmp
memory/456-23-0x0000000000660000-0x0000000000666000-memory.dmp