Analysis Overview
SHA256
e2b0ecd743b55dd74df2f17c35581ea9dbc0d8cba821027314875947831a2053
Threat Level: Known bad
The file 2024-06-01_5dc8798266fdb13c830ecba13cf829c9_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)
Loads dropped DLL
UPX packed file
Executes dropped EXE
Checks computer location settings
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-01 18:27
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
2024-06-01 18:27
Reported
2024-06-01 18:29
Platform
win7-20240221-en
Max time kernel
149s
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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\hasfj.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_5dc8798266fdb13c830ecba13cf829c9_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 1712 wrote to memory of 2504 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_5dc8798266fdb13c830ecba13cf829c9_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 1712 wrote to memory of 2504 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_5dc8798266fdb13c830ecba13cf829c9_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 1712 wrote to memory of 2504 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_5dc8798266fdb13c830ecba13cf829c9_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 1712 wrote to memory of 2504 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_5dc8798266fdb13c830ecba13cf829c9_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-01_5dc8798266fdb13c830ecba13cf829c9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-01_5dc8798266fdb13c830ecba13cf829c9_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\hasfj.exe
"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | mytarta.com | udp |
Files
memory/1712-0-0x0000000008000000-0x000000000800E000-memory.dmp
memory/1712-1-0x00000000004B0000-0x00000000004B6000-memory.dmp
memory/1712-2-0x00000000004C0000-0x00000000004C6000-memory.dmp
memory/1712-9-0x00000000004B0000-0x00000000004B6000-memory.dmp
\Users\Admin\AppData\Local\Temp\hasfj.exe
| MD5 | 0199422d74cc881a038cea6a2dd1d03b |
| SHA1 | a712b1513aa89c65c18e6884d5f3e8c8a4f04966 |
| SHA256 | 5154a5eef66bbf0852ac7299bdfd47170f901ecc3a5d2bbc8bfe38d7e15b770b |
| SHA512 | f5f5137f3f851a50ba7a521d8868e418ba11963a894e2d59f66b052153f24479448f7f1a9e29b237960c67eac5d9fbf2b0afb7fc931cb55d8c9a789076520f17 |
memory/1712-16-0x0000000008000000-0x000000000800E000-memory.dmp
memory/2504-17-0x0000000008000000-0x000000000800E000-memory.dmp
memory/2504-26-0x0000000000360000-0x0000000000366000-memory.dmp
memory/2504-19-0x0000000000580000-0x0000000000586000-memory.dmp
memory/2504-27-0x0000000008000000-0x000000000800E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-01 18:27
Reported
2024-06-01 18:29
Platform
win10v2004-20240426-en
Max time kernel
150s
Max time network
147s
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-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-01_5dc8798266fdb13c830ecba13cf829c9_cryptolocker.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\hasfj.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 1432 wrote to memory of 3048 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_5dc8798266fdb13c830ecba13cf829c9_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 1432 wrote to memory of 3048 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_5dc8798266fdb13c830ecba13cf829c9_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 1432 wrote to memory of 3048 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_5dc8798266fdb13c830ecba13cf829c9_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-01_5dc8798266fdb13c830ecba13cf829c9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-01_5dc8798266fdb13c830ecba13cf829c9_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\hasfj.exe
"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 145.83.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
Files
memory/1432-0-0x0000000008000000-0x000000000800E000-memory.dmp
memory/1432-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/1432-2-0x0000000003150000-0x0000000003156000-memory.dmp
memory/1432-9-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\hasfj.exe
| MD5 | 0199422d74cc881a038cea6a2dd1d03b |
| SHA1 | a712b1513aa89c65c18e6884d5f3e8c8a4f04966 |
| SHA256 | 5154a5eef66bbf0852ac7299bdfd47170f901ecc3a5d2bbc8bfe38d7e15b770b |
| SHA512 | f5f5137f3f851a50ba7a521d8868e418ba11963a894e2d59f66b052153f24479448f7f1a9e29b237960c67eac5d9fbf2b0afb7fc931cb55d8c9a789076520f17 |
memory/1432-18-0x0000000008000000-0x000000000800E000-memory.dmp
memory/3048-17-0x0000000008000000-0x000000000800E000-memory.dmp
memory/3048-26-0x0000000008000000-0x000000000800E000-memory.dmp