Analysis Overview
SHA256
efc1e61decd3e62cd907c4bd0e86a4fb8377b19ccb581a28014838150fb93932
Threat Level: Known bad
The file 2024-06-13_2d8511be028bdc6a2f02b6386a08d57e_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of CryptoLocker Variants
Detection of CryptoLocker Variants
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
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
2024-06-13 03:28
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
2024-06-13 03:28
Reported
2024-06-13 03:30
Platform
win7-20240419-en
Max time kernel
148s
Max time network
149s
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_2d8511be028bdc6a2f02b6386a08d57e_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\2024-06-13_2d8511be028bdc6a2f02b6386a08d57e_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 2460 wrote to memory of 2836 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_2d8511be028bdc6a2f02b6386a08d57e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
| PID 2460 wrote to memory of 2836 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_2d8511be028bdc6a2f02b6386a08d57e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
| PID 2460 wrote to memory of 2836 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_2d8511be028bdc6a2f02b6386a08d57e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
| PID 2460 wrote to memory of 2836 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_2d8511be028bdc6a2f02b6386a08d57e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_2d8511be028bdc6a2f02b6386a08d57e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_2d8511be028bdc6a2f02b6386a08d57e_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 | 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 |
Files
memory/2460-0-0x00000000004B0000-0x00000000004B6000-memory.dmp
memory/2460-1-0x0000000000400000-0x0000000000406000-memory.dmp
memory/2460-8-0x00000000004B0000-0x00000000004B6000-memory.dmp
\Users\Admin\AppData\Local\Temp\retln.exe
| MD5 | b04956f8112037b7b7de77ec7c72eb64 |
| SHA1 | 74ad9acca7f59abfc8a757a7f71da46ab140530e |
| SHA256 | 7ab8c9980bb340510ca56e58a545c7ec58fd8d4184f6d6ca6b9a61a33567b63c |
| SHA512 | f4c275c58221ce86af0ef7be6aaa828011edd2f4e9b3625c05df4a0e2d11a67039ece02f166378473ab1ed57b581244ff94dfc57bca92cc2bc60f18c44b9c246 |
memory/2836-23-0x00000000005C0000-0x00000000005C6000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-13 03:28
Reported
2024-06-13 03:30
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 |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-13_2d8511be028bdc6a2f02b6386a08d57e_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 2560 wrote to memory of 2292 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_2d8511be028bdc6a2f02b6386a08d57e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
| PID 2560 wrote to memory of 2292 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_2d8511be028bdc6a2f02b6386a08d57e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
| PID 2560 wrote to memory of 2292 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_2d8511be028bdc6a2f02b6386a08d57e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\retln.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_2d8511be028bdc6a2f02b6386a08d57e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_2d8511be028bdc6a2f02b6386a08d57e_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 | 8.8.8.8.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 | storage-cabinets.info | udp |
Files
memory/2560-0-0x0000000002160000-0x0000000002166000-memory.dmp
memory/2560-1-0x0000000000400000-0x0000000000406000-memory.dmp
memory/2560-8-0x0000000002160000-0x0000000002166000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\retln.exe
| MD5 | b04956f8112037b7b7de77ec7c72eb64 |
| SHA1 | 74ad9acca7f59abfc8a757a7f71da46ab140530e |
| SHA256 | 7ab8c9980bb340510ca56e58a545c7ec58fd8d4184f6d6ca6b9a61a33567b63c |
| SHA512 | f4c275c58221ce86af0ef7be6aaa828011edd2f4e9b3625c05df4a0e2d11a67039ece02f166378473ab1ed57b581244ff94dfc57bca92cc2bc60f18c44b9c246 |
memory/2292-25-0x0000000002D60000-0x0000000002D66000-memory.dmp