Analysis Overview
SHA256
7c1d119a1ae87314d16626dcf1d660bc059a5237e91938d7dc29f50420c85499
Threat Level: Known bad
The file 2024-05-27_58bc0995e863bc35be5340147bbde4fa_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
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-27 18:30
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
2024-05-27 18:30
Reported
2024-05-27 18:33
Platform
win7-20240221-en
Max time kernel
148s
Max time network
152s
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\2024-05-27_58bc0995e863bc35be5340147bbde4fa_cryptolocker.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2832 wrote to memory of 2600 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-27_58bc0995e863bc35be5340147bbde4fa_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2832 wrote to memory of 2600 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-27_58bc0995e863bc35be5340147bbde4fa_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2832 wrote to memory of 2600 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-27_58bc0995e863bc35be5340147bbde4fa_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2832 wrote to memory of 2600 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-27_58bc0995e863bc35be5340147bbde4fa_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-27_58bc0995e863bc35be5340147bbde4fa_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-27_58bc0995e863bc35be5340147bbde4fa_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 | 54.161.222.85:443 | 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 |
| US | 34.205.242.146:443 | emrlogistics.com | tcp |
Files
memory/2832-0-0x0000000000300000-0x0000000000306000-memory.dmp
memory/2832-1-0x0000000000300000-0x0000000000306000-memory.dmp
memory/2832-2-0x0000000000340000-0x0000000000346000-memory.dmp
\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | 5b37790ecf1dd1a69acd1d97ce12032e |
| SHA1 | c4f8c7fd7e355646f8c31679e1aa0bb82d0da819 |
| SHA256 | 9b2fba8a1c84c3aea63f8a608e5709e6e3331a5cce6f244cc6f566d1e218c97c |
| SHA512 | a1734ed5a96f3b418d5e00183789117e751e5ec0f7fce8950d88e6f2c2046e752833ea7645f0ebc70eaadcdf66f7daeaf0241a8615bdd80df9ea90231c2545fa |
memory/2600-22-0x00000000002C0000-0x00000000002C6000-memory.dmp
memory/2600-15-0x0000000000310000-0x0000000000316000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-27 18:30
Reported
2024-05-27 18:33
Platform
win10v2004-20240508-en
Max time kernel
149s
Max time network
153s
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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-05-27_58bc0995e863bc35be5340147bbde4fa_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 4328 wrote to memory of 2988 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-27_58bc0995e863bc35be5340147bbde4fa_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 4328 wrote to memory of 2988 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-27_58bc0995e863bc35be5340147bbde4fa_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 4328 wrote to memory of 2988 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-27_58bc0995e863bc35be5340147bbde4fa_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-27_58bc0995e863bc35be5340147bbde4fa_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-27_58bc0995e863bc35be5340147bbde4fa_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 | 18.119.154.66:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 241.150.49.20.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 | 71.31.126.40.in-addr.arpa | udp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 3.140.13.188:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 18.119.154.66:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 18.24.18.2.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 | 22.236.111.52.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 | 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 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 3.140.13.188:443 | emrlogistics.com | tcp |
| US | 18.119.154.66:443 | emrlogistics.com | tcp |
| US | 3.140.13.188:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 15.173.189.20.in-addr.arpa | udp |
Files
memory/4328-0-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/4328-1-0x00000000004F0000-0x00000000004F6000-memory.dmp
memory/4328-8-0x00000000004D0000-0x00000000004D6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | 5b37790ecf1dd1a69acd1d97ce12032e |
| SHA1 | c4f8c7fd7e355646f8c31679e1aa0bb82d0da819 |
| SHA256 | 9b2fba8a1c84c3aea63f8a608e5709e6e3331a5cce6f244cc6f566d1e218c97c |
| SHA512 | a1734ed5a96f3b418d5e00183789117e751e5ec0f7fce8950d88e6f2c2046e752833ea7645f0ebc70eaadcdf66f7daeaf0241a8615bdd80df9ea90231c2545fa |
memory/2988-17-0x00000000006C0000-0x00000000006C6000-memory.dmp
memory/2988-23-0x00000000006A0000-0x00000000006A6000-memory.dmp