Analysis Overview
SHA256
38b6fd3c07d124506524e2a885baf8cbd8f625e0e37267a7e4fa30b132d38cda
Threat Level: Known bad
The file 2024-06-02_d5e694be19a9867676f26bf6a91c9385_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
Unsigned PE
Enumerates physical storage devices
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 |
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 00:55
Platform
win7-20240221-en
Max time kernel
150s
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 |
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_d5e694be19a9867676f26bf6a91c9385_cryptolocker.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2872 wrote to memory of 3012 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_d5e694be19a9867676f26bf6a91c9385_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 2872 wrote to memory of 3012 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_d5e694be19a9867676f26bf6a91c9385_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 2872 wrote to memory of 3012 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_d5e694be19a9867676f26bf6a91c9385_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 2872 wrote to memory of 3012 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_d5e694be19a9867676f26bf6a91c9385_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-02_d5e694be19a9867676f26bf6a91c9385_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-02_d5e694be19a9867676f26bf6a91c9385_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/2872-0-0x0000000008000000-0x000000000800A000-memory.dmp
memory/2872-1-0x0000000000240000-0x0000000000246000-memory.dmp
memory/2872-2-0x0000000000270000-0x0000000000276000-memory.dmp
memory/2872-9-0x0000000000240000-0x0000000000246000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\lossy.exe
| MD5 | b928327676574ade9802e08310744208 |
| SHA1 | c51bf7259d5f7a1fe25f22acdd40af8554b668af |
| SHA256 | 6ba95cc793c681a4ef51f5e2d2ab101031dd896ef9f3065f8e8c2b203846fb30 |
| SHA512 | 82b82a6ec4205f72813e24482bb724f8a56bea5e84452eb0b33569203f5c113741f647f86226704dd205dbe7c7a881934cc309f2048094dfe2a581469b142fdc |
memory/2872-16-0x0000000008000000-0x000000000800A000-memory.dmp
memory/2872-13-0x00000000025B0000-0x00000000025BA000-memory.dmp
memory/3012-18-0x00000000001D0000-0x00000000001D6000-memory.dmp
memory/3012-19-0x0000000000280000-0x0000000000286000-memory.dmp
memory/3012-26-0x0000000008000000-0x000000000800A000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-02 00:52
Reported
2024-06-02 00:55
Platform
win10v2004-20240508-en
Max time kernel
150s
Max time network
159s
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 |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-02_d5e694be19a9867676f26bf6a91c9385_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 use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3076 wrote to memory of 860 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_d5e694be19a9867676f26bf6a91c9385_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 3076 wrote to memory of 860 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_d5e694be19a9867676f26bf6a91c9385_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 3076 wrote to memory of 860 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_d5e694be19a9867676f26bf6a91c9385_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-02_d5e694be19a9867676f26bf6a91c9385_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-02_d5e694be19a9867676f26bf6a91c9385_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 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | 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 | 67.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.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 | 183.142.211.20.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 | 103.169.127.40.in-addr.arpa | 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 | 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 | 88.156.103.20.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 | 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 | 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 | 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 | 95.16.208.104.in-addr.arpa | udp |
Files
memory/3076-0-0x0000000008000000-0x000000000800A000-memory.dmp
memory/3076-1-0x0000000002040000-0x0000000002046000-memory.dmp
memory/3076-2-0x0000000002070000-0x0000000002076000-memory.dmp
memory/3076-9-0x0000000002040000-0x0000000002046000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\lossy.exe
| MD5 | b928327676574ade9802e08310744208 |
| SHA1 | c51bf7259d5f7a1fe25f22acdd40af8554b668af |
| SHA256 | 6ba95cc793c681a4ef51f5e2d2ab101031dd896ef9f3065f8e8c2b203846fb30 |
| SHA512 | 82b82a6ec4205f72813e24482bb724f8a56bea5e84452eb0b33569203f5c113741f647f86226704dd205dbe7c7a881934cc309f2048094dfe2a581469b142fdc |
memory/860-17-0x0000000008000000-0x000000000800A000-memory.dmp
memory/3076-18-0x0000000008000000-0x000000000800A000-memory.dmp
memory/860-20-0x00000000020F0000-0x00000000020F6000-memory.dmp
memory/860-26-0x0000000000590000-0x0000000000596000-memory.dmp
memory/860-27-0x0000000008000000-0x000000000800A000-memory.dmp