Analysis Overview
SHA256
618e06e4e6ecaa0f7101d61b40215e664f192b49cda98a12e6f39faf97d730ee
Threat Level: Known bad
The file 2024-06-13_2f5a0116d7f13cc25b50e89415f783f1_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
UPX packed file
Loads dropped DLL
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-13 03:28
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 |
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 |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-13 03:28
Reported
2024-06-13 03:31
Platform
win7-20240611-en
Max time kernel
149s
Max time network
154s
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 |
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\2024-06-13_2f5a0116d7f13cc25b50e89415f783f1_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 |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2224 wrote to memory of 2668 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_2f5a0116d7f13cc25b50e89415f783f1_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 2224 wrote to memory of 2668 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_2f5a0116d7f13cc25b50e89415f783f1_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 2224 wrote to memory of 2668 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_2f5a0116d7f13cc25b50e89415f783f1_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 2224 wrote to memory of 2668 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_2f5a0116d7f13cc25b50e89415f783f1_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_2f5a0116d7f13cc25b50e89415f783f1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_2f5a0116d7f13cc25b50e89415f783f1_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/2224-0-0x0000000008000000-0x000000000800E000-memory.dmp
memory/2224-2-0x0000000001C80000-0x0000000001C86000-memory.dmp
memory/2224-1-0x0000000001C50000-0x0000000001C56000-memory.dmp
memory/2224-9-0x0000000001C50000-0x0000000001C56000-memory.dmp
\Users\Admin\AppData\Local\Temp\lossy.exe
| MD5 | e89c576f01933dd45ed16233338f9b2b |
| SHA1 | 794bced9070020be64e92768bb7c6654cf481072 |
| SHA256 | 3dbca9f478778421fe8e8d65084cb42badf7f676912cf531b8d0b56ff1574781 |
| SHA512 | 0257072e514e76d10cd7e57b75d496686080f3b3670c86c065321b5bd7cb1dcdfba328e84d881362fc9d37420ad6b67f9d693eb5d18bf99fcbe2387aa9bfc4f2 |
memory/2224-16-0x0000000008000000-0x000000000800E000-memory.dmp
memory/2668-17-0x0000000008000000-0x000000000800E000-memory.dmp
memory/2668-19-0x0000000000550000-0x0000000000556000-memory.dmp
memory/2668-26-0x0000000000520000-0x0000000000526000-memory.dmp
memory/2668-27-0x0000000008000000-0x000000000800E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-13 03:28
Reported
2024-06-13 03:31
Platform
win10v2004-20240508-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 |
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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-13_2f5a0116d7f13cc25b50e89415f783f1_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 4988 wrote to memory of 2460 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_2f5a0116d7f13cc25b50e89415f783f1_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 4988 wrote to memory of 2460 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_2f5a0116d7f13cc25b50e89415f783f1_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 4988 wrote to memory of 2460 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_2f5a0116d7f13cc25b50e89415f783f1_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_2f5a0116d7f13cc25b50e89415f783f1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_2f5a0116d7f13cc25b50e89415f783f1_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 | 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/4988-0-0x0000000008000000-0x000000000800E000-memory.dmp
memory/4988-1-0x0000000000560000-0x0000000000566000-memory.dmp
memory/4988-2-0x0000000002060000-0x0000000002066000-memory.dmp
memory/4988-9-0x0000000000560000-0x0000000000566000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\lossy.exe
| MD5 | e89c576f01933dd45ed16233338f9b2b |
| SHA1 | 794bced9070020be64e92768bb7c6654cf481072 |
| SHA256 | 3dbca9f478778421fe8e8d65084cb42badf7f676912cf531b8d0b56ff1574781 |
| SHA512 | 0257072e514e76d10cd7e57b75d496686080f3b3670c86c065321b5bd7cb1dcdfba328e84d881362fc9d37420ad6b67f9d693eb5d18bf99fcbe2387aa9bfc4f2 |
memory/4988-18-0x0000000008000000-0x000000000800E000-memory.dmp
memory/2460-17-0x0000000008000000-0x000000000800E000-memory.dmp
memory/2460-20-0x0000000002070000-0x0000000002076000-memory.dmp
memory/2460-26-0x00000000021D0000-0x00000000021D6000-memory.dmp
memory/2460-27-0x0000000008000000-0x000000000800E000-memory.dmp