Analysis Overview
SHA256
b90f8095274d599bdadf6875c9b6ae4a35ccd057a337cc2063ddb5e3b4697d9b
Threat Level: Known bad
The file 2024-06-13_050e12ee74b8155ab700c46d10689830_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of Cryptolocker Samples
Detection of CryptoLocker Variants
Detection of CryptoLocker Variants
Detection of Cryptolocker Samples
Loads dropped DLL
Executes dropped EXE
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
2024-06-13 12:24
Signatures
Detection of CryptoLocker Variants
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detection of Cryptolocker Samples
| 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: behavioral2
Detonation Overview
Submitted
2024-06-13 12:24
Reported
2024-06-13 12:26
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 |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-13_050e12ee74b8155ab700c46d10689830_cryptolocker.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\misid.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4564 wrote to memory of 1436 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_050e12ee74b8155ab700c46d10689830_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
| PID 4564 wrote to memory of 1436 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_050e12ee74b8155ab700c46d10689830_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
| PID 4564 wrote to memory of 1436 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_050e12ee74b8155ab700c46d10689830_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_050e12ee74b8155ab700c46d10689830_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_050e12ee74b8155ab700c46d10689830_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4104,i,10373433614523925616,13586256558317053467,262144 --variations-seed-version --mojo-platform-channel-handle=3976 /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
Files
memory/4564-0-0x0000000000500000-0x000000000050E000-memory.dmp
memory/4564-1-0x00000000004F0000-0x00000000004F6000-memory.dmp
memory/4564-2-0x00000000005F0000-0x00000000005F6000-memory.dmp
memory/4564-9-0x00000000004F0000-0x00000000004F6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\misid.exe
| MD5 | a11867f8ead957fc6b5ae1c7200fd71a |
| SHA1 | 51f1dbc231ce95be0918e5d83e606f9909544af9 |
| SHA256 | 2b8a55147220731556aef51af3ee65faa77dd4b576f454cb6c398cecc9059d4e |
| SHA512 | 1dcd92472a398896338a4e9dc04383d748d46cc3df4d476c9cb9d51479949fa74bcc92475a2547a39ff6ec0f5d61336706486541f0ec0dc72ce00c874f460724 |
memory/1436-17-0x0000000000500000-0x000000000050E000-memory.dmp
memory/1436-26-0x0000000000840000-0x0000000000846000-memory.dmp
memory/4564-25-0x0000000000500000-0x000000000050E000-memory.dmp
memory/1436-19-0x0000000002070000-0x0000000002076000-memory.dmp
memory/1436-27-0x0000000000500000-0x000000000050E000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-13 12:24
Reported
2024-06-13 12:26
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 |
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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\misid.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_050e12ee74b8155ab700c46d10689830_cryptolocker.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1712 wrote to memory of 2588 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_050e12ee74b8155ab700c46d10689830_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
| PID 1712 wrote to memory of 2588 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_050e12ee74b8155ab700c46d10689830_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
| PID 1712 wrote to memory of 2588 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_050e12ee74b8155ab700c46d10689830_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
| PID 1712 wrote to memory of 2588 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_050e12ee74b8155ab700c46d10689830_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_050e12ee74b8155ab700c46d10689830_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_050e12ee74b8155ab700c46d10689830_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
Files
memory/1712-0-0x0000000000240000-0x0000000000246000-memory.dmp
memory/1712-1-0x0000000000340000-0x0000000000346000-memory.dmp
memory/1712-9-0x0000000000240000-0x0000000000246000-memory.dmp
memory/1712-8-0x0000000000500000-0x000000000050E000-memory.dmp
\Users\Admin\AppData\Local\Temp\misid.exe
| MD5 | a11867f8ead957fc6b5ae1c7200fd71a |
| SHA1 | 51f1dbc231ce95be0918e5d83e606f9909544af9 |
| SHA256 | 2b8a55147220731556aef51af3ee65faa77dd4b576f454cb6c398cecc9059d4e |
| SHA512 | 1dcd92472a398896338a4e9dc04383d748d46cc3df4d476c9cb9d51479949fa74bcc92475a2547a39ff6ec0f5d61336706486541f0ec0dc72ce00c874f460724 |
memory/2588-15-0x0000000000500000-0x000000000050E000-memory.dmp
memory/2588-17-0x0000000000280000-0x0000000000286000-memory.dmp
memory/2588-24-0x0000000000500000-0x000000000050E000-memory.dmp