Analysis Overview
SHA256
2610f1bcc56f972a6bd51658ce834900cb35ec468939b4ebc8c89acafb0ee825
Threat Level: Known bad
The file 2024-05-31_8a9f60e10293364644e5540dd74eb404_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of Cryptolocker Samples
Detection of CryptoLocker Variants
UPX dump on OEP (original entry point)
Detection of Cryptolocker Samples
UPX dump on OEP (original entry point)
Detection of CryptoLocker Variants
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
UPX packed file
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-31 15:53
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: behavioral2
Detonation Overview
Submitted
2024-05-31 15:53
Reported
2024-05-31 15:55
Platform
win10v2004-20240426-en
Max time kernel
149s
Max time network
151s
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-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-05-31_8a9f60e10293364644e5540dd74eb404_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 3448 wrote to memory of 940 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_8a9f60e10293364644e5540dd74eb404_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 3448 wrote to memory of 940 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_8a9f60e10293364644e5540dd74eb404_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 3448 wrote to memory of 940 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_8a9f60e10293364644e5540dd74eb404_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-31_8a9f60e10293364644e5540dd74eb404_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-31_8a9f60e10293364644e5540dd74eb404_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 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 54.161.222.85:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 97.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 84.177.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 34.205.242.146:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 54.161.222.85:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 89.90.14.23.in-addr.arpa | udp |
| US | 34.205.242.146:443 | emrlogistics.com | tcp |
| US | 54.161.222.85:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 91.90.14.23.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 | 105.246.116.51.in-addr.arpa | udp |
Files
memory/3448-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/3448-1-0x00000000004E0000-0x00000000004E6000-memory.dmp
memory/3448-2-0x0000000000510000-0x0000000000516000-memory.dmp
memory/3448-9-0x00000000004E0000-0x00000000004E6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | 41bea78bdaad6da26c632d3303d4b97a |
| SHA1 | 74b15ba3388a60e8c44da12c59e8b45e303cf921 |
| SHA256 | 4124c4a289f21bce7e7d666307aee3846b83dbd3533d35288b1f016010d5f78e |
| SHA512 | d90f34412ff55ad13a8ee2ef4eee35af2c84490b37bc8b38e9232bb58505430daf39d642b87d1283704ed80de614c53477c06575306c1a61cc2266163f978dbe |
memory/3448-17-0x0000000000500000-0x0000000000510000-memory.dmp
memory/940-18-0x0000000000500000-0x0000000000510000-memory.dmp
memory/940-21-0x00000000004F0000-0x00000000004F6000-memory.dmp
memory/940-20-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/940-27-0x0000000000500000-0x0000000000510000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-31 15:53
Reported
2024-05-31 15:55
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 |
| 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 |
| 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 |
| 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_8a9f60e10293364644e5540dd74eb404_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 |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1036 wrote to memory of 2312 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_8a9f60e10293364644e5540dd74eb404_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 1036 wrote to memory of 2312 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_8a9f60e10293364644e5540dd74eb404_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 1036 wrote to memory of 2312 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_8a9f60e10293364644e5540dd74eb404_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 1036 wrote to memory of 2312 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_8a9f60e10293364644e5540dd74eb404_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-31_8a9f60e10293364644e5540dd74eb404_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-31_8a9f60e10293364644e5540dd74eb404_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 | 3.18.7.81:443 | emrlogistics.com | tcp |
| US | 3.19.116.195:443 | emrlogistics.com | tcp |
| US | 3.18.7.81:443 | emrlogistics.com | tcp |
| US | 3.19.116.195:443 | emrlogistics.com | tcp |
| US | 3.18.7.81:443 | emrlogistics.com | tcp |
| US | 3.19.116.195:443 | emrlogistics.com | tcp |
| US | 3.18.7.81:443 | emrlogistics.com | tcp |
| US | 3.19.116.195:443 | emrlogistics.com | tcp |
Files
memory/1036-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/1036-1-0x0000000000240000-0x0000000000246000-memory.dmp
memory/1036-2-0x0000000000240000-0x0000000000246000-memory.dmp
memory/1036-3-0x0000000000480000-0x0000000000486000-memory.dmp
\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | 41bea78bdaad6da26c632d3303d4b97a |
| SHA1 | 74b15ba3388a60e8c44da12c59e8b45e303cf921 |
| SHA256 | 4124c4a289f21bce7e7d666307aee3846b83dbd3533d35288b1f016010d5f78e |
| SHA512 | d90f34412ff55ad13a8ee2ef4eee35af2c84490b37bc8b38e9232bb58505430daf39d642b87d1283704ed80de614c53477c06575306c1a61cc2266163f978dbe |
memory/1036-13-0x0000000001EA0000-0x0000000001EB0000-memory.dmp
memory/1036-17-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2312-18-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2312-20-0x00000000004C0000-0x00000000004C6000-memory.dmp
memory/2312-27-0x0000000000380000-0x0000000000386000-memory.dmp
memory/2312-28-0x0000000000500000-0x0000000000510000-memory.dmp