Analysis Overview
SHA256
79b5755194e74f9ab5d0ced5faf07fe921f565ebcb8723c7557568e176772b0d
Threat Level: Known bad
The file 2024-06-10_fa380a76cceb9950a6d99b32c43a8ef0_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
Loads dropped DLL
UPX packed file
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
2024-06-10 21:45
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
2024-06-10 21:45
Reported
2024-06-10 21:47
Platform
win7-20240508-en
Max time kernel
144s
Max time network
148s
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\2024-06-10_fa380a76cceb9950a6d99b32c43a8ef0_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 2180 wrote to memory of 2164 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_fa380a76cceb9950a6d99b32c43a8ef0_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 2180 wrote to memory of 2164 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_fa380a76cceb9950a6d99b32c43a8ef0_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 2180 wrote to memory of 2164 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_fa380a76cceb9950a6d99b32c43a8ef0_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 2180 wrote to memory of 2164 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_fa380a76cceb9950a6d99b32c43a8ef0_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-10_fa380a76cceb9950a6d99b32c43a8ef0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_fa380a76cceb9950a6d99b32c43a8ef0_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 |
Files
memory/2180-0-0x00000000002C0000-0x00000000002C6000-memory.dmp
memory/2180-9-0x00000000002C0000-0x00000000002C6000-memory.dmp
memory/2180-8-0x0000000008000000-0x000000000800F000-memory.dmp
memory/2180-1-0x0000000000380000-0x0000000000386000-memory.dmp
\Users\Admin\AppData\Local\Temp\lossy.exe
| MD5 | 2dd375eeb03202c8bcf947ffa8ba88c9 |
| SHA1 | 5472e469a5835f4ba9f2ee8d92899687a57be5c0 |
| SHA256 | 4aee567c994c8ef96cd87ced07245c85e5d8da4e8833a4989a016d2f9e3392cb |
| SHA512 | 0994d8cda11384498a85eadcdd09591043ae567105a49a3a694ce49db890ae8cfa6d3c4d87beafbe88122422faf6ee17b3aff78577b44b52076808bd2dca9469 |
memory/2164-15-0x0000000008000000-0x000000000800F000-memory.dmp
memory/2164-17-0x0000000000350000-0x0000000000356000-memory.dmp
memory/2164-24-0x00000000002D0000-0x00000000002D6000-memory.dmp
memory/2164-25-0x0000000008000000-0x000000000800F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-10 21:45
Reported
2024-06-10 21:47
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-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-10_fa380a76cceb9950a6d99b32c43a8ef0_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 4412 wrote to memory of 1936 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_fa380a76cceb9950a6d99b32c43a8ef0_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 4412 wrote to memory of 1936 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_fa380a76cceb9950a6d99b32c43a8ef0_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 4412 wrote to memory of 1936 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_fa380a76cceb9950a6d99b32c43a8ef0_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-10_fa380a76cceb9950a6d99b32c43a8ef0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_fa380a76cceb9950a6d99b32c43a8ef0_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 |
Files
memory/4412-0-0x0000000008000000-0x000000000800F000-memory.dmp
memory/4412-1-0x00000000005A0000-0x00000000005A6000-memory.dmp
memory/4412-2-0x00000000005D0000-0x00000000005D6000-memory.dmp
memory/4412-9-0x00000000005A0000-0x00000000005A6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\lossy.exe
| MD5 | 2dd375eeb03202c8bcf947ffa8ba88c9 |
| SHA1 | 5472e469a5835f4ba9f2ee8d92899687a57be5c0 |
| SHA256 | 4aee567c994c8ef96cd87ced07245c85e5d8da4e8833a4989a016d2f9e3392cb |
| SHA512 | 0994d8cda11384498a85eadcdd09591043ae567105a49a3a694ce49db890ae8cfa6d3c4d87beafbe88122422faf6ee17b3aff78577b44b52076808bd2dca9469 |
memory/4412-17-0x0000000008000000-0x000000000800F000-memory.dmp
memory/1936-16-0x0000000008000000-0x000000000800F000-memory.dmp
memory/1936-20-0x00000000005B0000-0x00000000005B6000-memory.dmp
memory/1936-26-0x0000000000590000-0x0000000000596000-memory.dmp
memory/1936-27-0x0000000008000000-0x000000000800F000-memory.dmp