Analysis Overview
SHA256
7a46913b08a642afb020f454221cc373ec69e2d01bf0277f4741a785b3f7748f
Threat Level: Known bad
The file 2024-06-10_19c3eb939ebe5587e12f5429b99fd4b8_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of CryptoLocker Variants
Detection of CryptoLocker Variants
Loads dropped DLL
Executes dropped EXE
Checks computer location settings
Unsigned PE
Enumerates physical storage devices
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-10 04:39
Signatures
Detection of CryptoLocker Variants
| 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
2024-06-10 04:39
Reported
2024-06-10 04:41
Platform
win7-20240221-en
Max time kernel
120s
Max time network
124s
Command Line
Signatures
Detection of CryptoLocker Variants
| 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\retln.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_19c3eb939ebe5587e12f5429b99fd4b8_cryptolocker.exe | N/A |
Enumerates physical storage devices
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_19c3eb939ebe5587e12f5429b99fd4b8_cryptolocker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\retln.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1340 wrote to memory of 2552 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_19c3eb939ebe5587e12f5429b99fd4b8_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
| PID 1340 wrote to memory of 2552 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_19c3eb939ebe5587e12f5429b99fd4b8_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
| PID 1340 wrote to memory of 2552 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_19c3eb939ebe5587e12f5429b99fd4b8_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
| PID 1340 wrote to memory of 2552 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_19c3eb939ebe5587e12f5429b99fd4b8_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-10_19c3eb939ebe5587e12f5429b99fd4b8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_19c3eb939ebe5587e12f5429b99fd4b8_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\retln.exe
"C:\Users\Admin\AppData\Local\Temp\retln.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
Files
memory/1340-8-0x0000000000370000-0x0000000000376000-memory.dmp
memory/1340-1-0x0000000000400000-0x0000000000406000-memory.dmp
memory/1340-0-0x0000000000370000-0x0000000000376000-memory.dmp
\Users\Admin\AppData\Local\Temp\retln.exe
| MD5 | f98a52514e9b516189538c7c20d99e18 |
| SHA1 | 8b0c89bade776f64c05845e917bc911ab316514c |
| SHA256 | 6712790403b2981a9b66f0e9fbad8903ef90d18c8e27d3a1a0eb3ff6fac020d1 |
| SHA512 | 616fef4fe7118d7b0e529e4cc3ec4b24ae0e3372aa224576171d5a4641a7f5fabf4a8165bd6b58b99320d551f277a22cfb3c3581452128483d31b510480c2448 |
memory/2552-23-0x0000000000280000-0x0000000000286000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-10 04:39
Reported
2024-06-10 04:41
Platform
win10v2004-20240508-en
Max time kernel
150s
Max time network
151s
Command Line
Signatures
Detection of CryptoLocker Variants
| 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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-10_19c3eb939ebe5587e12f5429b99fd4b8_cryptolocker.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\retln.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4808 wrote to memory of 3920 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_19c3eb939ebe5587e12f5429b99fd4b8_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
| PID 4808 wrote to memory of 3920 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_19c3eb939ebe5587e12f5429b99fd4b8_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
| PID 4808 wrote to memory of 3920 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_19c3eb939ebe5587e12f5429b99fd4b8_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-10_19c3eb939ebe5587e12f5429b99fd4b8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_19c3eb939ebe5587e12f5429b99fd4b8_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\retln.exe
"C:\Users\Admin\AppData\Local\Temp\retln.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | 203.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | 144.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
Files
memory/4808-0-0x00000000020E0000-0x00000000020E6000-memory.dmp
memory/4808-1-0x0000000000400000-0x0000000000406000-memory.dmp
memory/4808-8-0x00000000020E0000-0x00000000020E6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\retln.exe
| MD5 | f98a52514e9b516189538c7c20d99e18 |
| SHA1 | 8b0c89bade776f64c05845e917bc911ab316514c |
| SHA256 | 6712790403b2981a9b66f0e9fbad8903ef90d18c8e27d3a1a0eb3ff6fac020d1 |
| SHA512 | 616fef4fe7118d7b0e529e4cc3ec4b24ae0e3372aa224576171d5a4641a7f5fabf4a8165bd6b58b99320d551f277a22cfb3c3581452128483d31b510480c2448 |
memory/3920-25-0x0000000000600000-0x0000000000606000-memory.dmp