Analysis Overview
SHA256
20406ebaaa226083e30d73c77ac3c2c973b441ec920e5af75bca1ea55809f7f0
Threat Level: Known bad
The file 202405229b0d5ae58d99a1e1fd4bd1cb17745374cryptolocker was found to be: Known bad.
Malicious Activity Summary
Berbew family
Malware Dropper & Backdoor - Berbew
Executes dropped EXE
Loads dropped DLL
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
2024-05-22 18:17
Signatures
Berbew family
Malware Dropper & Backdoor - Berbew
| 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
2024-05-22 18:16
Reported
2024-05-22 18:19
Platform
win7-20240508-en
Max time kernel
150s
Max time network
150s
Command Line
Signatures
Malware Dropper & Backdoor - Berbew
| Description | Indicator | Process | Target |
| 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\202405229b0d5ae58d99a1e1fd4bd1cb17745374cryptolocker.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1196 wrote to memory of 2164 | N/A | C:\Users\Admin\AppData\Local\Temp\202405229b0d5ae58d99a1e1fd4bd1cb17745374cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 1196 wrote to memory of 2164 | N/A | C:\Users\Admin\AppData\Local\Temp\202405229b0d5ae58d99a1e1fd4bd1cb17745374cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 1196 wrote to memory of 2164 | N/A | C:\Users\Admin\AppData\Local\Temp\202405229b0d5ae58d99a1e1fd4bd1cb17745374cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 1196 wrote to memory of 2164 | N/A | C:\Users\Admin\AppData\Local\Temp\202405229b0d5ae58d99a1e1fd4bd1cb17745374cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\202405229b0d5ae58d99a1e1fd4bd1cb17745374cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\202405229b0d5ae58d99a1e1fd4bd1cb17745374cryptolocker.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/1196-0-0x0000000000570000-0x0000000000576000-memory.dmp
memory/1196-8-0x0000000000570000-0x0000000000576000-memory.dmp
memory/1196-1-0x0000000000580000-0x0000000000586000-memory.dmp
\Users\Admin\AppData\Local\Temp\hasfj.exe
| MD5 | 92a632dbf64dfcccb98e19eb92b601e8 |
| SHA1 | 1d86c5124b7b63ae0486256de75f20f6a5105e0a |
| SHA256 | 9ad5863f85bdffba0b97b4255fe7b39b6629767e54e434fcffb7247ba1294c20 |
| SHA512 | 68ad39908e01cb5233cd46facb6134ca5e600c424a14ba39237a219e4b5e76dd4418d255f919e5f83bf189b2755f723c3540467cbc8d9e13c7e717065c7fac6f |
memory/2164-21-0x0000000000320000-0x0000000000326000-memory.dmp
memory/2164-15-0x0000000000330000-0x0000000000336000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-22 18:16
Reported
2024-05-22 18:19
Platform
win10v2004-20240226-en
Max time kernel
151s
Max time network
153s
Command Line
Signatures
Malware Dropper & Backdoor - Berbew
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\202405229b0d5ae58d99a1e1fd4bd1cb17745374cryptolocker.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\hasfj.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 412 wrote to memory of 4256 | N/A | C:\Users\Admin\AppData\Local\Temp\202405229b0d5ae58d99a1e1fd4bd1cb17745374cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 412 wrote to memory of 4256 | N/A | C:\Users\Admin\AppData\Local\Temp\202405229b0d5ae58d99a1e1fd4bd1cb17745374cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 412 wrote to memory of 4256 | N/A | C:\Users\Admin\AppData\Local\Temp\202405229b0d5ae58d99a1e1fd4bd1cb17745374cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\202405229b0d5ae58d99a1e1fd4bd1cb17745374cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\202405229b0d5ae58d99a1e1fd4bd1cb17745374cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\hasfj.exe
"C:\Users\Admin\AppData\Local\Temp\hasfj.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 --mojo-platform-channel-handle=3732 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | 58.55.71.13.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 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 13.107.253.64:443 | tcp | |
| US | 8.8.8.8:53 | 133.211.185.52.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 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| NL | 52.142.223.178:80 | tcp | |
| 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 | 14.227.111.52.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 | 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 | 89.16.208.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
Files
memory/412-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/412-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/412-2-0x0000000003150000-0x0000000003156000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\hasfj.exe
| MD5 | 92a632dbf64dfcccb98e19eb92b601e8 |
| SHA1 | 1d86c5124b7b63ae0486256de75f20f6a5105e0a |
| SHA256 | 9ad5863f85bdffba0b97b4255fe7b39b6629767e54e434fcffb7247ba1294c20 |
| SHA512 | 68ad39908e01cb5233cd46facb6134ca5e600c424a14ba39237a219e4b5e76dd4418d255f919e5f83bf189b2755f723c3540467cbc8d9e13c7e717065c7fac6f |
memory/4256-17-0x0000000003010000-0x0000000003016000-memory.dmp
memory/4256-23-0x0000000002D60000-0x0000000002D66000-memory.dmp