Analysis Overview
SHA256
f8ee28eaf6a1172c9d7ce6bab74af535f67cbea04df9e99807acebe94b54fee4
Threat Level: Known bad
The file 2024-06-11_cd41dad994ae88ad27fe9d660eea357f_cryptolocker was found to be: Known bad.
Malicious Activity Summary
UPX dump on OEP (original entry point)
Detection of CryptoLocker Variants
UPX dump on OEP (original entry point)
Detection of CryptoLocker Variants
Loads dropped DLL
Checks computer location settings
UPX packed file
Executes dropped EXE
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-11 01:14
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
2024-06-11 01:14
Reported
2024-06-11 01:17
Platform
win7-20240221-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 |
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\2024-06-11_cd41dad994ae88ad27fe9d660eea357f_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 2868 wrote to memory of 1572 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-11_cd41dad994ae88ad27fe9d660eea357f_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 2868 wrote to memory of 1572 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-11_cd41dad994ae88ad27fe9d660eea357f_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 2868 wrote to memory of 1572 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-11_cd41dad994ae88ad27fe9d660eea357f_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 2868 wrote to memory of 1572 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-11_cd41dad994ae88ad27fe9d660eea357f_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-11_cd41dad994ae88ad27fe9d660eea357f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-11_cd41dad994ae88ad27fe9d660eea357f_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/2868-0-0x0000000008000000-0x000000000800F000-memory.dmp
memory/2868-1-0x0000000000320000-0x0000000000326000-memory.dmp
memory/2868-2-0x0000000001C90000-0x0000000001C96000-memory.dmp
memory/2868-9-0x0000000000320000-0x0000000000326000-memory.dmp
\Users\Admin\AppData\Local\Temp\lossy.exe
| MD5 | 3f702b0cfdbb92521a24cf064923a12e |
| SHA1 | f544076102e958490b32942a5f88e129d8edefb9 |
| SHA256 | 644ea7282ac982e4d5e2a332e6f29677533a1691c3a2be8ca90512cf0d155996 |
| SHA512 | a029f0268b85e0b736ce29c1e3f805264679b35adbd59dadee4fc559aa9c751d9ab0a2968e561500ad2a6f7bb7a2400f1de6cf7f8785a1fdb429ab3b15680f78 |
memory/2868-14-0x0000000008000000-0x000000000800F000-memory.dmp
memory/1572-17-0x0000000000310000-0x0000000000316000-memory.dmp
memory/1572-24-0x00000000002C0000-0x00000000002C6000-memory.dmp
memory/1572-25-0x0000000008000000-0x000000000800F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-11 01:14
Reported
2024-06-11 01:17
Platform
win10v2004-20240508-en
Max time kernel
150s
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 |
| 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 |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-11_cd41dad994ae88ad27fe9d660eea357f_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 |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 5016 wrote to memory of 3680 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-11_cd41dad994ae88ad27fe9d660eea357f_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 5016 wrote to memory of 3680 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-11_cd41dad994ae88ad27fe9d660eea357f_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 5016 wrote to memory of 3680 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-11_cd41dad994ae88ad27fe9d660eea357f_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-11_cd41dad994ae88ad27fe9d660eea357f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-11_cd41dad994ae88ad27fe9d660eea357f_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 | 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/5016-0-0x0000000008000000-0x000000000800F000-memory.dmp
memory/5016-1-0x0000000001FC0000-0x0000000001FC6000-memory.dmp
memory/5016-2-0x0000000001FE0000-0x0000000001FE6000-memory.dmp
memory/5016-9-0x0000000001FC0000-0x0000000001FC6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\lossy.exe
| MD5 | 3f702b0cfdbb92521a24cf064923a12e |
| SHA1 | f544076102e958490b32942a5f88e129d8edefb9 |
| SHA256 | 644ea7282ac982e4d5e2a332e6f29677533a1691c3a2be8ca90512cf0d155996 |
| SHA512 | a029f0268b85e0b736ce29c1e3f805264679b35adbd59dadee4fc559aa9c751d9ab0a2968e561500ad2a6f7bb7a2400f1de6cf7f8785a1fdb429ab3b15680f78 |
memory/5016-17-0x0000000008000000-0x000000000800F000-memory.dmp
memory/3680-18-0x0000000008000000-0x000000000800F000-memory.dmp
memory/3680-20-0x0000000000660000-0x0000000000666000-memory.dmp
memory/3680-26-0x0000000000640000-0x0000000000646000-memory.dmp
memory/3680-27-0x0000000008000000-0x000000000800F000-memory.dmp