Analysis Overview
SHA256
b35cf07f9383c1c405d9a9644d15c304284bd5933d028e2b8f47be9db69d79a0
Threat Level: Known bad
The file 2024-06-02_cdcd4fd2a1334baaf591246721695dfd_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of CryptoLocker Variants
UPX dump on OEP (original entry point)
Detection of CryptoLocker Variants
UPX dump on OEP (original entry point)
Executes dropped EXE
Checks computer location settings
Loads dropped DLL
UPX packed file
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-02 00:52
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 |
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 |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-02 00:52
Reported
2024-06-02 00:54
Platform
win7-20240221-en
Max time kernel
149s
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 |
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\lossy.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_cdcd4fd2a1334baaf591246721695dfd_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 |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2696 wrote to memory of 2828 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_cdcd4fd2a1334baaf591246721695dfd_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 2696 wrote to memory of 2828 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_cdcd4fd2a1334baaf591246721695dfd_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 2696 wrote to memory of 2828 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_cdcd4fd2a1334baaf591246721695dfd_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 2696 wrote to memory of 2828 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_cdcd4fd2a1334baaf591246721695dfd_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-02_cdcd4fd2a1334baaf591246721695dfd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-02_cdcd4fd2a1334baaf591246721695dfd_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/2696-0-0x0000000008000000-0x000000000800F000-memory.dmp
memory/2696-1-0x0000000000240000-0x0000000000246000-memory.dmp
memory/2696-2-0x00000000003C0000-0x00000000003C6000-memory.dmp
memory/2696-9-0x0000000000240000-0x0000000000246000-memory.dmp
\Users\Admin\AppData\Local\Temp\lossy.exe
| MD5 | 650d41a6d4f0f62a71b0787f91721071 |
| SHA1 | 80ec2bcea5848e880e615250eb6d072c014171d5 |
| SHA256 | 40de92f1e3a68fec56b2f38694ca1c7543628b8099d7e3878164e7cf75c42d2a |
| SHA512 | 1980f0f8c25559dafde106d16f44c2729bb930fcd2695f50a2a219e4a7201ef1a75f4b0d2acaa2d79665838a993cda7503123f0ed0971950df5ad3b329e4773f |
memory/2696-15-0x0000000008000000-0x000000000800F000-memory.dmp
memory/2828-17-0x0000000001C10000-0x0000000001C16000-memory.dmp
memory/2828-25-0x0000000008000000-0x000000000800F000-memory.dmp
memory/2828-24-0x0000000000260000-0x0000000000266000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-02 00:52
Reported
2024-06-02 00:54
Platform
win10v2004-20240426-en
Max time kernel
150s
Max time network
147s
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 |
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-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-02_cdcd4fd2a1334baaf591246721695dfd_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 |
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 |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 400 wrote to memory of 1368 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_cdcd4fd2a1334baaf591246721695dfd_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 400 wrote to memory of 1368 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_cdcd4fd2a1334baaf591246721695dfd_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 400 wrote to memory of 1368 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_cdcd4fd2a1334baaf591246721695dfd_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-02_cdcd4fd2a1334baaf591246721695dfd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-02_cdcd4fd2a1334baaf591246721695dfd_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 |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 20.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 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 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 171.39.242.20.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 | 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 | 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 | 29.243.111.52.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 | udp |
Files
memory/400-0-0x0000000008000000-0x000000000800F000-memory.dmp
memory/400-1-0x0000000000450000-0x0000000000456000-memory.dmp
memory/400-2-0x0000000002060000-0x0000000002066000-memory.dmp
memory/400-9-0x0000000000450000-0x0000000000456000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\lossy.exe
| MD5 | 650d41a6d4f0f62a71b0787f91721071 |
| SHA1 | 80ec2bcea5848e880e615250eb6d072c014171d5 |
| SHA256 | 40de92f1e3a68fec56b2f38694ca1c7543628b8099d7e3878164e7cf75c42d2a |
| SHA512 | 1980f0f8c25559dafde106d16f44c2729bb930fcd2695f50a2a219e4a7201ef1a75f4b0d2acaa2d79665838a993cda7503123f0ed0971950df5ad3b329e4773f |
memory/400-17-0x0000000008000000-0x000000000800F000-memory.dmp
memory/1368-19-0x0000000002050000-0x0000000002056000-memory.dmp
memory/1368-25-0x00000000021D0000-0x00000000021D6000-memory.dmp
memory/1368-26-0x0000000008000000-0x000000000800F000-memory.dmp