Analysis Overview
SHA256
c6664951962325b445189b178c59a5af0ba0af4096d9cbcb81acf90619b515b8
Threat Level: Known bad
The file 2024-05-31_038f624ec719ef7249d943f1eaddcf1e_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of CryptoLocker Variants
Detection of Cryptolocker Samples
Detection of CryptoLocker Variants
Detection of Cryptolocker Samples
Loads dropped DLL
Checks computer location settings
Executes dropped EXE
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-31 15:25
Signatures
Detection of CryptoLocker Variants
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detection of Cryptolocker Samples
| 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
2024-05-31 15:25
Reported
2024-05-31 15:27
Platform
win7-20240508-en
Max time kernel
148s
Max time network
148s
Command Line
Signatures
Detection of CryptoLocker Variants
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detection of Cryptolocker Samples
| 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\asih.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_038f624ec719ef7249d943f1eaddcf1e_cryptolocker.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2956 wrote to memory of 2424 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_038f624ec719ef7249d943f1eaddcf1e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2956 wrote to memory of 2424 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_038f624ec719ef7249d943f1eaddcf1e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2956 wrote to memory of 2424 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_038f624ec719ef7249d943f1eaddcf1e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2956 wrote to memory of 2424 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_038f624ec719ef7249d943f1eaddcf1e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-31_038f624ec719ef7249d943f1eaddcf1e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-31_038f624ec719ef7249d943f1eaddcf1e_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 34.205.242.146:443 | emrlogistics.com | tcp |
| US | 54.161.222.85:443 | emrlogistics.com | tcp |
| US | 34.205.242.146:443 | emrlogistics.com | tcp |
| US | 54.161.222.85:443 | emrlogistics.com | tcp |
| US | 34.205.242.146:443 | emrlogistics.com | tcp |
| US | 54.161.222.85:443 | emrlogistics.com | tcp |
| US | 34.205.242.146:443 | emrlogistics.com | tcp |
| US | 54.161.222.85:443 | emrlogistics.com | tcp |
Files
memory/2956-0-0x0000000000240000-0x0000000000246000-memory.dmp
memory/2956-1-0x00000000002C0000-0x00000000002C6000-memory.dmp
memory/2956-8-0x0000000000240000-0x0000000000246000-memory.dmp
\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | 41111690336ac1c727fa504170b83ca9 |
| SHA1 | a2f3e074a1f16b7448df1bc2c5a98e6d1bf51d17 |
| SHA256 | a870aa04cffb7a957aab99c8eab82bbe6f071d4b065ec9b736ee3ed5d5eb26c1 |
| SHA512 | dbb2496e4f53eebd56e39832dd4aedf05d33fd755fa0c99c35b7492c2afc613b02b80a8268b70003f7105b778e194e3b8a36f8b8af7cda395a29a003dd23e1d8 |
memory/2424-15-0x0000000000300000-0x0000000000306000-memory.dmp
memory/2424-22-0x00000000002C0000-0x00000000002C6000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-31 15:25
Reported
2024-05-31 15:27
Platform
win10v2004-20240508-en
Max time kernel
148s
Max time network
150s
Command Line
Signatures
Detection of CryptoLocker Variants
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detection of Cryptolocker Samples
| 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\2024-05-31_038f624ec719ef7249d943f1eaddcf1e_cryptolocker.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\asih.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1336 wrote to memory of 1860 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_038f624ec719ef7249d943f1eaddcf1e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 1336 wrote to memory of 1860 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_038f624ec719ef7249d943f1eaddcf1e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 1336 wrote to memory of 1860 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_038f624ec719ef7249d943f1eaddcf1e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-31_038f624ec719ef7249d943f1eaddcf1e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-31_038f624ec719ef7249d943f1eaddcf1e_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 3.140.13.188:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.159.190.20.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 | 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 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| NL | 23.62.61.129:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 129.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 18.119.154.66:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 3.140.13.188:443 | emrlogistics.com | tcp |
| US | 18.119.154.66:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 3.140.13.188:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 30.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 18.119.154.66:443 | emrlogistics.com | tcp |
| US | 3.140.13.188:443 | emrlogistics.com | tcp |
| US | 18.119.154.66:443 | emrlogistics.com | tcp |
Files
memory/1336-8-0x00000000004E0000-0x00000000004E6000-memory.dmp
memory/1336-1-0x00000000005F0000-0x00000000005F6000-memory.dmp
memory/1336-0-0x00000000004E0000-0x00000000004E6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | 41111690336ac1c727fa504170b83ca9 |
| SHA1 | a2f3e074a1f16b7448df1bc2c5a98e6d1bf51d17 |
| SHA256 | a870aa04cffb7a957aab99c8eab82bbe6f071d4b065ec9b736ee3ed5d5eb26c1 |
| SHA512 | dbb2496e4f53eebd56e39832dd4aedf05d33fd755fa0c99c35b7492c2afc613b02b80a8268b70003f7105b778e194e3b8a36f8b8af7cda395a29a003dd23e1d8 |
memory/1860-17-0x00000000004F0000-0x00000000004F6000-memory.dmp
memory/1860-23-0x00000000004D0000-0x00000000004D6000-memory.dmp