Analysis Overview
SHA256
b926658227ec1a05d3f20bee63cfa53b71238913baa5ed266a704e7f6f2826c9
Threat Level: Known bad
The file 2024-01-25_6f403dddf26e8e95554e0b18e3d6a0cc_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Kinsing
Detection of CryptoLocker Variants
Detection of CryptoLocker Variants
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
Creates a large amount of network flows
Enumerates physical storage devices
Unsigned PE
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-01-25 15:36
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
2024-01-25 15:36
Reported
2024-01-25 15:39
Platform
win7-20231215-en
Max time kernel
15s
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\2024-01-25_6f403dddf26e8e95554e0b18e3d6a0cc_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\2024-01-25_6f403dddf26e8e95554e0b18e3d6a0cc_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 2204 wrote to memory of 2316 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-01-25_6f403dddf26e8e95554e0b18e3d6a0cc_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
| PID 2204 wrote to memory of 2316 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-01-25_6f403dddf26e8e95554e0b18e3d6a0cc_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
| PID 2204 wrote to memory of 2316 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-01-25_6f403dddf26e8e95554e0b18e3d6a0cc_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
| PID 2204 wrote to memory of 2316 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-01-25_6f403dddf26e8e95554e0b18e3d6a0cc_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-01-25_6f403dddf26e8e95554e0b18e3d6a0cc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_6f403dddf26e8e95554e0b18e3d6a0cc_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/2204-0-0x00000000003E0000-0x00000000003E6000-memory.dmp
memory/2204-1-0x0000000000400000-0x0000000000406000-memory.dmp
memory/2204-2-0x00000000003E0000-0x00000000003E6000-memory.dmp
\Users\Admin\AppData\Local\Temp\retln.exe
| MD5 | 613c73c528adbcf26ea87fbbe1a97a02 |
| SHA1 | 4278e9fa93a4d5e57d09828e36397eb52d9356ad |
| SHA256 | 5297b43a515ebf2e0646903455a556a393f0758bddbfcfee75f7c989b246356e |
| SHA512 | e72d8bc213da25400286b9c57de27bef1d555e5bcc21effe801a7fbad7273fab226935be61928a85c8008de99ffd1b72f7a99339adf4f3c7e74a728b38bfdd24 |
memory/2316-19-0x00000000002E0000-0x00000000002E6000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-01-25 15:36
Reported
2024-01-25 15:39
Platform
win10v2004-20231215-en
Max time kernel
150s
Max time network
146s
Command Line
Signatures
Kinsing
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-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-01-25_6f403dddf26e8e95554e0b18e3d6a0cc_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 2328 wrote to memory of 1816 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-01-25_6f403dddf26e8e95554e0b18e3d6a0cc_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
| PID 2328 wrote to memory of 1816 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-01-25_6f403dddf26e8e95554e0b18e3d6a0cc_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
| PID 2328 wrote to memory of 1816 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-01-25_6f403dddf26e8e95554e0b18e3d6a0cc_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-01-25_6f403dddf26e8e95554e0b18e3d6a0cc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_6f403dddf26e8e95554e0b18e3d6a0cc_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 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.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 | 104.219.191.52.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 | 16.234.44.23.in-addr.arpa | 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 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.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 | 194.178.17.96.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 | 22.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | storage-cabinets.info | udp |
| US | 8.8.8.8:53 | 187.178.17.96.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 | 8.173.189.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | udp |
Files
memory/2328-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/2328-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/2328-2-0x0000000000400000-0x0000000000406000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\retln.exe
| MD5 | 613c73c528adbcf26ea87fbbe1a97a02 |
| SHA1 | 4278e9fa93a4d5e57d09828e36397eb52d9356ad |
| SHA256 | 5297b43a515ebf2e0646903455a556a393f0758bddbfcfee75f7c989b246356e |
| SHA512 | e72d8bc213da25400286b9c57de27bef1d555e5bcc21effe801a7fbad7273fab226935be61928a85c8008de99ffd1b72f7a99339adf4f3c7e74a728b38bfdd24 |
memory/1816-25-0x0000000002D60000-0x0000000002D66000-memory.dmp