Analysis Overview
SHA256
b8c87dea9554b06b87fd88d9d5f23f0dfc41368132cc2140054d75a16aa9d01d
Threat Level: Known bad
The file 2024-06-12_e4eb63de14f56983b365b68199cf2c4c_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of Cryptolocker Samples
UPX dump on OEP (original entry point)
Detection of CryptoLocker Variants
Detection of Cryptolocker Samples
Detection of CryptoLocker Variants
UPX dump on OEP (original entry point)
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
UPX packed file
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-12 15:33
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 |
Detection of Cryptolocker Samples
| 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
2024-06-12 15:33
Reported
2024-06-12 15:35
Platform
win7-20240221-en
Max time kernel
148s
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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Detection of Cryptolocker Samples
| 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 |
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 |
| 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\asih.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-12_e4eb63de14f56983b365b68199cf2c4c_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 |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2944 wrote to memory of 284 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-12_e4eb63de14f56983b365b68199cf2c4c_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2944 wrote to memory of 284 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-12_e4eb63de14f56983b365b68199cf2c4c_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2944 wrote to memory of 284 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-12_e4eb63de14f56983b365b68199cf2c4c_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2944 wrote to memory of 284 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-12_e4eb63de14f56983b365b68199cf2c4c_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-12_e4eb63de14f56983b365b68199cf2c4c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-12_e4eb63de14f56983b365b68199cf2c4c_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 3.140.13.188:443 | emrlogistics.com | tcp |
| US | 18.119.154.66:443 | emrlogistics.com | tcp |
| US | 3.140.13.188:443 | emrlogistics.com | tcp |
| US | 18.119.154.66:443 | emrlogistics.com | tcp |
| US | 3.140.13.188:443 | emrlogistics.com | tcp |
| US | 18.119.154.66:443 | emrlogistics.com | tcp |
| US | 3.140.13.188:443 | emrlogistics.com | tcp |
| US | 18.119.154.66:443 | emrlogistics.com | tcp |
Files
memory/2944-0-0x00000000002D0000-0x00000000002D6000-memory.dmp
memory/2944-1-0x0000000000500000-0x000000000050F000-memory.dmp
memory/2944-3-0x0000000000350000-0x0000000000356000-memory.dmp
memory/2944-9-0x00000000002D0000-0x00000000002D6000-memory.dmp
\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | f04d9dfc405ac56785b70ff84c42a6dc |
| SHA1 | 08b536d2a6e137ed577a42ef6eb17aaa77ec7d2f |
| SHA256 | 5efb9147f1f46818f391bef8c7c4b479389215e7eecebb0719bf557f1ba7a3ae |
| SHA512 | 2743a208598f4c99c9dae1add0bf06edfade4f1621ae3acd16ee2060fe86b24563130f74d6d16c22dac99e5e5a295ec78c95f206cc9cbd3e0595146d4c56d822 |
memory/2944-13-0x0000000002270000-0x000000000227F000-memory.dmp
memory/2944-17-0x0000000000500000-0x000000000050F000-memory.dmp
memory/284-19-0x0000000000500000-0x000000000050F000-memory.dmp
memory/284-27-0x0000000000240000-0x0000000000246000-memory.dmp
memory/284-20-0x0000000000300000-0x0000000000306000-memory.dmp
memory/284-28-0x0000000000500000-0x000000000050F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-12 15:33
Reported
2024-06-12 15:35
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 |
Detection of Cryptolocker Samples
| 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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-12_e4eb63de14f56983b365b68199cf2c4c_cryptolocker.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\asih.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 3068 wrote to memory of 436 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-12_e4eb63de14f56983b365b68199cf2c4c_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 3068 wrote to memory of 436 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-12_e4eb63de14f56983b365b68199cf2c4c_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 3068 wrote to memory of 436 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-12_e4eb63de14f56983b365b68199cf2c4c_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-12_e4eb63de14f56983b365b68199cf2c4c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-12_e4eb63de14f56983b365b68199cf2c4c_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.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 | emrlogistics.com | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
Files
memory/3068-0-0x0000000000500000-0x000000000050F000-memory.dmp
memory/3068-1-0x0000000000630000-0x0000000000636000-memory.dmp
memory/3068-2-0x00000000020F0000-0x00000000020F6000-memory.dmp
memory/3068-9-0x0000000000630000-0x0000000000636000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | f04d9dfc405ac56785b70ff84c42a6dc |
| SHA1 | 08b536d2a6e137ed577a42ef6eb17aaa77ec7d2f |
| SHA256 | 5efb9147f1f46818f391bef8c7c4b479389215e7eecebb0719bf557f1ba7a3ae |
| SHA512 | 2743a208598f4c99c9dae1add0bf06edfade4f1621ae3acd16ee2060fe86b24563130f74d6d16c22dac99e5e5a295ec78c95f206cc9cbd3e0595146d4c56d822 |
memory/436-16-0x0000000000500000-0x000000000050F000-memory.dmp
memory/436-21-0x00000000004F0000-0x00000000004F6000-memory.dmp
memory/3068-18-0x0000000000500000-0x000000000050F000-memory.dmp
memory/436-27-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/436-28-0x0000000000500000-0x000000000050F000-memory.dmp