Analysis Overview
SHA256
a26cf784cff73f77ec876a046f29721f4e15c24d818d98e1ffbd6fb749b05af3
Threat Level: Known bad
The file 2024-06-03_d03269204fcc1b0762bdbe04ef5707fa_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of CryptoLocker Variants
Detection of CryptoLocker Variants
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
Enumerates physical storage devices
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-03 07:46
Signatures
Detection of CryptoLocker Variants
| 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
2024-06-03 07:46
Reported
2024-06-03 07:49
Platform
win7-20240221-en
Max time kernel
149s
Max time network
156s
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 |
| 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\lossy.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_d03269204fcc1b0762bdbe04ef5707fa_cryptolocker.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_d03269204fcc1b0762bdbe04ef5707fa_cryptolocker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\lossy.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2456 wrote to memory of 2588 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_d03269204fcc1b0762bdbe04ef5707fa_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 2456 wrote to memory of 2588 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_d03269204fcc1b0762bdbe04ef5707fa_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 2456 wrote to memory of 2588 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_d03269204fcc1b0762bdbe04ef5707fa_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 2456 wrote to memory of 2588 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_d03269204fcc1b0762bdbe04ef5707fa_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-03_d03269204fcc1b0762bdbe04ef5707fa_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-03_d03269204fcc1b0762bdbe04ef5707fa_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\lossy.exe
"C:\Users\Admin\AppData\Local\Temp\lossy.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 2ndry.com | udp |
Files
memory/2456-0-0x0000000008000000-0x0000000008884000-memory.dmp
memory/2456-1-0x0000000000230000-0x0000000000231000-memory.dmp
memory/2456-3-0x0000000000230000-0x0000000000231000-memory.dmp
memory/2456-7-0x000000000800A000-0x0000000008303000-memory.dmp
memory/2456-5-0x0000000000230000-0x0000000000231000-memory.dmp
memory/2456-6-0x0000000008000000-0x0000000008884000-memory.dmp
memory/2456-9-0x0000000000300000-0x0000000000306000-memory.dmp
memory/2456-8-0x00000000002D0000-0x00000000002D6000-memory.dmp
memory/2456-16-0x0000000008000000-0x0000000008884000-memory.dmp
memory/2456-17-0x0000000008000000-0x0000000008884000-memory.dmp
\Users\Admin\AppData\Local\Temp\lossy.exe
| MD5 | d3d6ab48cdf45035cbad9e7945d9ad40 |
| SHA1 | a1e61f8d289a5d7ddc149b06d6bba398142558b0 |
| SHA256 | 219cc6ddef34a3803d8e54eeb1cd20af561cf5b48e6c237b79145a6287b95fdb |
| SHA512 | 1bf38d56755cfc1dabd1a34c68011b9b3b3fd6b65ed61f5da59f80bb4a3f3ac9c8c2f4c7ac32e138e6ff1f0a5941f6c08284d81b34b605f5452cd8e7cc89a1f3 |
memory/2456-23-0x0000000002B60000-0x00000000033E4000-memory.dmp
memory/2456-25-0x0000000008000000-0x0000000008884000-memory.dmp
memory/2588-32-0x0000000008000000-0x0000000008884000-memory.dmp
memory/2588-34-0x0000000000280000-0x0000000000286000-memory.dmp
memory/2588-40-0x0000000008000000-0x0000000008884000-memory.dmp
memory/2456-26-0x000000000800A000-0x0000000008303000-memory.dmp
memory/2588-41-0x0000000008000000-0x0000000008884000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-03 07:46
Reported
2024-06-03 07:49
Platform
win10v2004-20240426-en
Max time kernel
150s
Max time network
150s
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 |
| 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\2024-06-03_d03269204fcc1b0762bdbe04ef5707fa_cryptolocker.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\lossy.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_d03269204fcc1b0762bdbe04ef5707fa_cryptolocker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_d03269204fcc1b0762bdbe04ef5707fa_cryptolocker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\lossy.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\lossy.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2308 wrote to memory of 1476 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_d03269204fcc1b0762bdbe04ef5707fa_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 2308 wrote to memory of 1476 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_d03269204fcc1b0762bdbe04ef5707fa_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 2308 wrote to memory of 1476 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_d03269204fcc1b0762bdbe04ef5707fa_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-03_d03269204fcc1b0762bdbe04ef5707fa_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-03_d03269204fcc1b0762bdbe04ef5707fa_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\lossy.exe
"C:\Users\Admin\AppData\Local\Temp\lossy.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 227.143.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 68.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
Files
memory/2308-0-0x0000000008000000-0x0000000008884000-memory.dmp
memory/2308-1-0x0000000000490000-0x0000000000491000-memory.dmp
memory/2308-3-0x000000000800A000-0x0000000008303000-memory.dmp
memory/2308-2-0x0000000008000000-0x0000000008884000-memory.dmp
memory/2308-4-0x0000000008000000-0x0000000008884000-memory.dmp
memory/2308-6-0x0000000000500000-0x0000000000506000-memory.dmp
memory/2308-5-0x00000000004E0000-0x00000000004E6000-memory.dmp
memory/2308-13-0x0000000008000000-0x0000000008884000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\lossy.exe
| MD5 | d3d6ab48cdf45035cbad9e7945d9ad40 |
| SHA1 | a1e61f8d289a5d7ddc149b06d6bba398142558b0 |
| SHA256 | 219cc6ddef34a3803d8e54eeb1cd20af561cf5b48e6c237b79145a6287b95fdb |
| SHA512 | 1bf38d56755cfc1dabd1a34c68011b9b3b3fd6b65ed61f5da59f80bb4a3f3ac9c8c2f4c7ac32e138e6ff1f0a5941f6c08284d81b34b605f5452cd8e7cc89a1f3 |
memory/2308-21-0x0000000008000000-0x0000000008884000-memory.dmp
memory/2308-22-0x000000000800A000-0x0000000008303000-memory.dmp
memory/1476-23-0x0000000000520000-0x0000000000521000-memory.dmp
memory/1476-25-0x0000000008000000-0x0000000008884000-memory.dmp
memory/1476-24-0x0000000008000000-0x0000000008884000-memory.dmp
memory/1476-27-0x0000000001F70000-0x0000000001F76000-memory.dmp
memory/1476-33-0x0000000008000000-0x0000000008884000-memory.dmp