Analysis Overview
SHA256
f5cc4a283c19383da15c1a5a43c45d7b715394b56e54454cd12befce707e4d42
Threat Level: Known bad
The file 2024-06-10_cd67531cb1e6243c47259271d3ba3b7c_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of CryptoLocker Variants
Detection of CryptoLocker Variants
Loads dropped DLL
Checks computer location settings
Executes dropped EXE
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-10 06:34
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
2024-06-10 06:29
Reported
2024-06-10 06:38
Platform
win7-20240215-en
Max time kernel
72s
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 |
| 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_cd67531cb1e6243c47259271d3ba3b7c_cryptolocker.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2748 wrote to memory of 2856 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_cd67531cb1e6243c47259271d3ba3b7c_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 2748 wrote to memory of 2856 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_cd67531cb1e6243c47259271d3ba3b7c_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 2748 wrote to memory of 2856 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_cd67531cb1e6243c47259271d3ba3b7c_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 2748 wrote to memory of 2856 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_cd67531cb1e6243c47259271d3ba3b7c_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-10_cd67531cb1e6243c47259271d3ba3b7c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_cd67531cb1e6243c47259271d3ba3b7c_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/2748-0-0x0000000008000000-0x000000000800A000-memory.dmp
memory/2748-1-0x00000000001C0000-0x00000000001C6000-memory.dmp
memory/2748-2-0x00000000003F0000-0x00000000003F6000-memory.dmp
memory/2748-9-0x00000000001C0000-0x00000000001C6000-memory.dmp
\Users\Admin\AppData\Local\Temp\lossy.exe
| MD5 | 9f401f7505a756fa839a34ab484bdc38 |
| SHA1 | e0143ab34c918f9c6a7b8defeec3d75c403d01bd |
| SHA256 | 4a4e45c1de9c7725a25e5d76531cab26d850fb40936a786d574d82fd62e55d20 |
| SHA512 | ed274148d18309e4e60310b9d9d887662db9bee2d66e76c0cd092710b4a9ae9a89d5b0d0e45d7cb0c50ccf51c83e5650413567d007ffaac412357e59ecf73fa8 |
memory/2748-12-0x0000000002830000-0x000000000283A000-memory.dmp
memory/2748-16-0x0000000008000000-0x000000000800A000-memory.dmp
memory/2856-17-0x0000000008000000-0x000000000800A000-memory.dmp
memory/2856-26-0x00000000002C0000-0x00000000002C6000-memory.dmp
memory/2856-19-0x0000000000380000-0x0000000000386000-memory.dmp
memory/2856-27-0x0000000008000000-0x000000000800A000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-10 06:29
Reported
2024-06-10 06:39
Platform
win10v2004-20240508-en
Max time kernel
23s
Max time network
153s
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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-10_cd67531cb1e6243c47259271d3ba3b7c_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 848 wrote to memory of 3932 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_cd67531cb1e6243c47259271d3ba3b7c_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 848 wrote to memory of 3932 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_cd67531cb1e6243c47259271d3ba3b7c_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
| PID 848 wrote to memory of 3932 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_cd67531cb1e6243c47259271d3ba3b7c_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\lossy.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-10_cd67531cb1e6243c47259271d3ba3b7c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_cd67531cb1e6243c47259271d3ba3b7c_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 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.159.190.20.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 | 97.17.167.52.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 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.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 | 31.243.111.52.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 | 2ndry.com | udp |
| US | 8.8.8.8:53 | 89.65.42.20.in-addr.arpa | udp |
Files
memory/848-0-0x0000000008000000-0x000000000800A000-memory.dmp
memory/848-3-0x00000000020E0000-0x00000000020E6000-memory.dmp
memory/848-2-0x00000000020C0000-0x00000000020C6000-memory.dmp
memory/3932-26-0x00000000021B0000-0x00000000021B6000-memory.dmp
memory/3932-20-0x00000000020D0000-0x00000000020D6000-memory.dmp
memory/3932-18-0x0000000008000000-0x000000000800A000-memory.dmp
memory/848-17-0x0000000008000000-0x000000000800A000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\lossy.exe
| MD5 | 9f401f7505a756fa839a34ab484bdc38 |
| SHA1 | e0143ab34c918f9c6a7b8defeec3d75c403d01bd |
| SHA256 | 4a4e45c1de9c7725a25e5d76531cab26d850fb40936a786d574d82fd62e55d20 |
| SHA512 | ed274148d18309e4e60310b9d9d887662db9bee2d66e76c0cd092710b4a9ae9a89d5b0d0e45d7cb0c50ccf51c83e5650413567d007ffaac412357e59ecf73fa8 |
memory/848-1-0x00000000020C0000-0x00000000020C6000-memory.dmp
memory/3932-27-0x0000000008000000-0x000000000800A000-memory.dmp