Analysis Overview
SHA256
c0ab0c81c984f3d055a49450dfb69795cf355d9c506b057684762edce6cedff5
Threat Level: Known bad
The file 2024-06-13_6991f83afc6547f2597e8c3cea0d0e4e_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of CryptoLocker Variants
Detection of CryptoLocker Variants
Loads dropped DLL
Checks computer location settings
Executes dropped EXE
Creates a large amount of network flows
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-13 01:34
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: behavioral2
Detonation Overview
Submitted
2024-06-13 01:34
Reported
2024-06-13 01:36
Platform
win10v2004-20240611-en
Max time kernel
150s
Max time network
146s
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-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-13_6991f83afc6547f2597e8c3cea0d0e4e_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 1632 wrote to memory of 3508 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_6991f83afc6547f2597e8c3cea0d0e4e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
| PID 1632 wrote to memory of 3508 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_6991f83afc6547f2597e8c3cea0d0e4e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
| PID 1632 wrote to memory of 3508 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_6991f83afc6547f2597e8c3cea0d0e4e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_6991f83afc6547f2597e8c3cea0d0e4e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_6991f83afc6547f2597e8c3cea0d0e4e_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 |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 91.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.32.126.40.in-addr.arpa | udp |
| BE | 2.17.107.105:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 105.107.17.2.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 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.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 | 0.205.248.87.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 | 29.243.111.52.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 |
| US | 8.8.8.8:53 | udp |
Files
memory/1632-0-0x0000000002160000-0x0000000002166000-memory.dmp
memory/1632-1-0x0000000000400000-0x0000000000406000-memory.dmp
memory/1632-8-0x0000000002160000-0x0000000002166000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\retln.exe
| MD5 | ad386d25d5d3ef8ac1c2ae8b1229147d |
| SHA1 | 1491e833db77f74e4f042242926a6b94bb36f0e4 |
| SHA256 | 5f580e70c799d7dd57953bd5f2948b300a6eacc0b708ccc30209229fe6657fba |
| SHA512 | ceb2665d60a7a4dfce9cf982bd57f9bba272f121313a581aa9b1489455c0da2455a13bb9dbb7f67c747951c4156f6e8fec8424abcb104f14f6629883884b7235 |
memory/3508-25-0x0000000002120000-0x0000000002126000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-13 01:34
Reported
2024-06-13 01:36
Platform
win7-20240221-en
Max time kernel
18s
Max time network
119s
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\2024-06-13_6991f83afc6547f2597e8c3cea0d0e4e_cryptolocker.exe | N/A |
Creates a large amount of network flows
Enumerates physical storage devices
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_6991f83afc6547f2597e8c3cea0d0e4e_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 2084 wrote to memory of 2108 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_6991f83afc6547f2597e8c3cea0d0e4e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
| PID 2084 wrote to memory of 2108 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_6991f83afc6547f2597e8c3cea0d0e4e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
| PID 2084 wrote to memory of 2108 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_6991f83afc6547f2597e8c3cea0d0e4e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
| PID 2084 wrote to memory of 2108 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_6991f83afc6547f2597e8c3cea0d0e4e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_6991f83afc6547f2597e8c3cea0d0e4e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_6991f83afc6547f2597e8c3cea0d0e4e_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/2084-0-0x00000000003C0000-0x00000000003C6000-memory.dmp
memory/2084-1-0x0000000000400000-0x0000000000406000-memory.dmp
memory/2084-8-0x00000000003C0000-0x00000000003C6000-memory.dmp
\Users\Admin\AppData\Local\Temp\retln.exe
| MD5 | ad386d25d5d3ef8ac1c2ae8b1229147d |
| SHA1 | 1491e833db77f74e4f042242926a6b94bb36f0e4 |
| SHA256 | 5f580e70c799d7dd57953bd5f2948b300a6eacc0b708ccc30209229fe6657fba |
| SHA512 | ceb2665d60a7a4dfce9cf982bd57f9bba272f121313a581aa9b1489455c0da2455a13bb9dbb7f67c747951c4156f6e8fec8424abcb104f14f6629883884b7235 |
memory/2108-23-0x0000000000290000-0x0000000000296000-memory.dmp