Analysis Overview
SHA256
3d4b4acfa93194df86e5322601488ffa1559b7c41629c130833260088ede6794
Threat Level: Known bad
The file 2024-05-31_1d2087291728af8bc7c882bd394c74f1_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of CryptoLocker Variants
UPX dump on OEP (original entry point)
UPX dump on OEP (original entry point)
Detection of Cryptolocker Samples
Detection of CryptoLocker Variants
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
2024-05-31 22:25
Signatures
Detection of CryptoLocker Variants
| Description | Indicator | Process | Target |
| 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 |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-31 22:25
Reported
2024-05-31 22:28
Platform
win7-20240221-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 |
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 |
| 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_1d2087291728af8bc7c882bd394c74f1_cryptolocker.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 856 wrote to memory of 280 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_1d2087291728af8bc7c882bd394c74f1_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 856 wrote to memory of 280 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_1d2087291728af8bc7c882bd394c74f1_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 856 wrote to memory of 280 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_1d2087291728af8bc7c882bd394c74f1_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 856 wrote to memory of 280 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_1d2087291728af8bc7c882bd394c74f1_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-31_1d2087291728af8bc7c882bd394c74f1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-31_1d2087291728af8bc7c882bd394c74f1_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 | 3.19.116.195:443 | 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 |
| US | 3.18.7.81:443 | emrlogistics.com | tcp |
Files
memory/856-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/856-1-0x0000000000230000-0x0000000000236000-memory.dmp
memory/856-2-0x00000000002B0000-0x00000000002B6000-memory.dmp
memory/856-9-0x0000000000230000-0x0000000000236000-memory.dmp
\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | be76d5a325a41ea58caa03102971e7e1 |
| SHA1 | 0f9234a782a5d505e585d5b4bf07830dda683b24 |
| SHA256 | 3126cfbac652dbc87c0d1627baf407dd8a10c5975190f2cf7cc7da5cbee2733b |
| SHA512 | 4b6f1357f9b64296ccf8bbc7f0dcc912813c59f03991d74f46618e245d6186819e727e384da64de426017ba0d4145a112b5b4b89c1b0c6b1070b1e3287808450 |
memory/856-16-0x0000000000500000-0x0000000000510000-memory.dmp
memory/280-18-0x00000000004C0000-0x00000000004C6000-memory.dmp
memory/280-25-0x0000000000250000-0x0000000000256000-memory.dmp
memory/280-26-0x0000000000500000-0x0000000000510000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-31 22:25
Reported
2024-05-31 22:28
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 |
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 |
| 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-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-05-31_1d2087291728af8bc7c882bd394c74f1_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 2680 wrote to memory of 2696 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_1d2087291728af8bc7c882bd394c74f1_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2680 wrote to memory of 2696 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_1d2087291728af8bc7c882bd394c74f1_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2680 wrote to memory of 2696 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-05-31_1d2087291728af8bc7c882bd394c74f1_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-05-31_1d2087291728af8bc7c882bd394c74f1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-31_1d2087291728af8bc7c882bd394c74f1_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 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 54.209.32.212:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 145.83.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.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 | 52.71.57.184:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 54.209.32.212:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| 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 | 8.8.8.8:53 | 66.112.168.52.in-addr.arpa | udp |
Files
memory/2680-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2680-1-0x00000000006A0000-0x00000000006A6000-memory.dmp
memory/2680-2-0x0000000002070000-0x0000000002076000-memory.dmp
memory/2680-9-0x00000000006A0000-0x00000000006A6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | be76d5a325a41ea58caa03102971e7e1 |
| SHA1 | 0f9234a782a5d505e585d5b4bf07830dda683b24 |
| SHA256 | 3126cfbac652dbc87c0d1627baf407dd8a10c5975190f2cf7cc7da5cbee2733b |
| SHA512 | 4b6f1357f9b64296ccf8bbc7f0dcc912813c59f03991d74f46618e245d6186819e727e384da64de426017ba0d4145a112b5b4b89c1b0c6b1070b1e3287808450 |
memory/2680-18-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2696-20-0x0000000000590000-0x0000000000596000-memory.dmp
memory/2696-26-0x00000000004E0000-0x00000000004E6000-memory.dmp
memory/2696-27-0x0000000000500000-0x0000000000510000-memory.dmp