Analysis Overview
SHA256
b670f3235cf86ae0c4152912defb75afdab50ce5c6434f5851344e340e379032
Threat Level: Known bad
The file 2024-06-03_4a22e3436a83edb44161b061099d5efd_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
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
2024-06-03 13:25
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
2024-06-03 13:25
Reported
2024-06-03 13:28
Platform
win7-20240215-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\rewok.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_4a22e3436a83edb44161b061099d5efd_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\2024-06-03_4a22e3436a83edb44161b061099d5efd_cryptolocker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\rewok.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2748 wrote to memory of 2752 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_4a22e3436a83edb44161b061099d5efd_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\rewok.exe |
| PID 2748 wrote to memory of 2752 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_4a22e3436a83edb44161b061099d5efd_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\rewok.exe |
| PID 2748 wrote to memory of 2752 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_4a22e3436a83edb44161b061099d5efd_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\rewok.exe |
| PID 2748 wrote to memory of 2752 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_4a22e3436a83edb44161b061099d5efd_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\rewok.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-03_4a22e3436a83edb44161b061099d5efd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-03_4a22e3436a83edb44161b061099d5efd_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\rewok.exe
"C:\Users\Admin\AppData\Local\Temp\rewok.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | spinistry.com | udp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
Files
memory/2748-1-0x0000000000400000-0x0000000000406000-memory.dmp
memory/2748-8-0x0000000000310000-0x0000000000316000-memory.dmp
memory/2748-0-0x0000000000310000-0x0000000000316000-memory.dmp
\Users\Admin\AppData\Local\Temp\rewok.exe
| MD5 | 0c80f5517967a00f03da2544758fe3f2 |
| SHA1 | 472ce5aa3ae73648bb08b08b175cfa66a5d42474 |
| SHA256 | 6fa08f7228cf793ba8b1eafcccd965db60df9c7d6d358b16b1bdd7e4bc79ea6f |
| SHA512 | a8592ccdbc15fe94c2338c3b254cc22775e31bb82865f741a3c1b167394c29a1bcca01a5e1f4b10ff1a4db7fc6e8f82ad871d9fe9990cfb7b38bc0050aa00313 |
memory/2752-23-0x00000000003F0000-0x00000000003F6000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-03 13:25
Reported
2024-06-03 13:28
Platform
win10v2004-20240508-en
Max time kernel
148s
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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-03_4a22e3436a83edb44161b061099d5efd_cryptolocker.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\rewok.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4228 wrote to memory of 2584 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_4a22e3436a83edb44161b061099d5efd_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\rewok.exe |
| PID 4228 wrote to memory of 2584 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_4a22e3436a83edb44161b061099d5efd_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\rewok.exe |
| PID 4228 wrote to memory of 2584 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_4a22e3436a83edb44161b061099d5efd_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\rewok.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-03_4a22e3436a83edb44161b061099d5efd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-03_4a22e3436a83edb44161b061099d5efd_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\rewok.exe
"C:\Users\Admin\AppData\Local\Temp\rewok.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 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | spinistry.com | udp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.53.126.40.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 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| NL | 23.62.61.155:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 155.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.251.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 8.8.8.8:53 | 152.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
| US | 64.98.135.121:443 | spinistry.com | tcp |
Files
memory/4228-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/4228-1-0x0000000000400000-0x0000000000406000-memory.dmp
memory/4228-8-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\rewok.exe
| MD5 | 0c80f5517967a00f03da2544758fe3f2 |
| SHA1 | 472ce5aa3ae73648bb08b08b175cfa66a5d42474 |
| SHA256 | 6fa08f7228cf793ba8b1eafcccd965db60df9c7d6d358b16b1bdd7e4bc79ea6f |
| SHA512 | a8592ccdbc15fe94c2338c3b254cc22775e31bb82865f741a3c1b167394c29a1bcca01a5e1f4b10ff1a4db7fc6e8f82ad871d9fe9990cfb7b38bc0050aa00313 |
memory/2584-25-0x0000000002250000-0x0000000002256000-memory.dmp