Analysis Overview
SHA256
f6e4a93ab3f410c117e2eebdd0119452e972cc3b3808dda7af1db4ee29757872
Threat Level: Known bad
The file 2024-06-13_815e6f9700ce82f0742b7703869c66b8_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of CryptoLocker Variants
Detection of Cryptolocker Samples
UPX dump on OEP (original entry point)
Detection of Cryptolocker Samples
Detection of CryptoLocker Variants
UPX dump on OEP (original entry point)
Executes dropped EXE
Checks computer location settings
Loads dropped DLL
UPX packed file
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-13 03:40
Signatures
Detection of CryptoLocker Variants
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Detection of Cryptolocker Samples
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
UPX dump on OEP (original entry point)
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
UPX packed file
| 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 |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-13 03:40
Reported
2024-06-13 03:43
Platform
win7-20240220-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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Detection of Cryptolocker Samples
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
UPX dump on OEP (original entry point)
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| 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\2024-06-13_815e6f9700ce82f0742b7703869c66b8_cryptolocker.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2068 wrote to memory of 2508 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_815e6f9700ce82f0742b7703869c66b8_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2068 wrote to memory of 2508 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_815e6f9700ce82f0742b7703869c66b8_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2068 wrote to memory of 2508 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_815e6f9700ce82f0742b7703869c66b8_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2068 wrote to memory of 2508 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_815e6f9700ce82f0742b7703869c66b8_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_815e6f9700ce82f0742b7703869c66b8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_815e6f9700ce82f0742b7703869c66b8_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 | 54.209.32.212:443 | emrlogistics.com | tcp |
| US | 52.71.57.184:443 | emrlogistics.com | tcp |
| US | 54.209.32.212:443 | emrlogistics.com | tcp |
| US | 52.71.57.184:443 | emrlogistics.com | tcp |
| US | 54.209.32.212:443 | emrlogistics.com | tcp |
| US | 52.71.57.184:443 | emrlogistics.com | tcp |
| US | 54.209.32.212:443 | emrlogistics.com | tcp |
| US | 52.71.57.184:443 | emrlogistics.com | tcp |
Files
memory/2068-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2068-1-0x00000000001E0000-0x00000000001E6000-memory.dmp
memory/2068-2-0x00000000004F0000-0x00000000004F6000-memory.dmp
memory/2068-9-0x00000000001E0000-0x00000000001E6000-memory.dmp
\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | 5a1079b88c38459b12dc2d38619d2064 |
| SHA1 | 2d2b95188ca26b059b846aca30c2676a0fbc7b9b |
| SHA256 | 2ef8e07a9c797aa550fe1682145d67f6a4b71bbd3759cec553729f368ac368e5 |
| SHA512 | a3ed07c5566b165a30cdb7001949877477a1da6a2829c710ac9c17b154564df3691eb5491c31ea5c473858e07953b0345c2f947f1579041d9aa989d93c4a96c6 |
memory/2068-13-0x0000000001DA0000-0x0000000001DB0000-memory.dmp
memory/2068-17-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2508-20-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2508-19-0x00000000001C0000-0x00000000001C6000-memory.dmp
memory/2508-21-0x00000000003F0000-0x00000000003F6000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-13 03:40
Reported
2024-06-13 03:43
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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Detection of Cryptolocker Samples
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
UPX dump on OEP (original entry point)
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2447855248-390457009-3660902674-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-13_815e6f9700ce82f0742b7703869c66b8_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 |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4004 wrote to memory of 684 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_815e6f9700ce82f0742b7703869c66b8_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 4004 wrote to memory of 684 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_815e6f9700ce82f0742b7703869c66b8_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 4004 wrote to memory of 684 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_815e6f9700ce82f0742b7703869c66b8_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_815e6f9700ce82f0742b7703869c66b8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_815e6f9700ce82f0742b7703869c66b8_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 | 8.8.8.8:53 | 67.31.126.40.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 | 34.205.242.146:443 | emrlogistics.com | tcp |
| NL | 23.62.61.97:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 54.161.222.85:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | 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 | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| US | 54.161.222.85:443 | emrlogistics.com | tcp |
| US | 34.205.242.146:443 | emrlogistics.com | tcp |
| US | 54.161.222.85:443 | tcp |
Files
memory/4004-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4004-1-0x0000000002050000-0x0000000002056000-memory.dmp
memory/4004-2-0x0000000002080000-0x0000000002086000-memory.dmp
memory/4004-9-0x0000000002050000-0x0000000002056000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | 5a1079b88c38459b12dc2d38619d2064 |
| SHA1 | 2d2b95188ca26b059b846aca30c2676a0fbc7b9b |
| SHA256 | 2ef8e07a9c797aa550fe1682145d67f6a4b71bbd3759cec553729f368ac368e5 |
| SHA512 | a3ed07c5566b165a30cdb7001949877477a1da6a2829c710ac9c17b154564df3691eb5491c31ea5c473858e07953b0345c2f947f1579041d9aa989d93c4a96c6 |
memory/684-19-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4004-18-0x0000000000500000-0x0000000000510000-memory.dmp
memory/684-21-0x00000000006C0000-0x00000000006C6000-memory.dmp
memory/684-27-0x00000000006A0000-0x00000000006A6000-memory.dmp
memory/684-28-0x0000000000500000-0x0000000000510000-memory.dmp