Analysis Overview
SHA256
5cb896f3395e99416d3b91fef16bb735b5bb649f86dd0d94f6191ea3369cf596
Threat Level: Known bad
The file proceso-0088-002022-685642634.pdf.js was found to be: Known bad.
Malicious Activity Summary
Vjw0rm
Blocklisted process makes network request
Drops startup file
Checks computer location settings
Adds Run key to start application
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-08-25 17:42
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-08-25 17:42
Reported
2022-08-25 17:46
Platform
win7-20220812-en
Max time kernel
146s
Max time network
150s
Command Line
Signatures
Vjw0rm
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\wscript.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\proceso-0088-002022-685642634.pdf.js | C:\Windows\system32\wscript.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\proceso-0088-002022-685642634.pdf.js | C:\Windows\system32\wscript.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run | C:\Windows\system32\wscript.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\1ET4SWR6G7 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\proceso-0088-002022-685642634.pdf.js\"" | C:\Windows\system32\wscript.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1708 wrote to memory of 1188 | N/A | C:\Windows\system32\wscript.exe | C:\Windows\System32\wscript.exe |
| PID 1708 wrote to memory of 1188 | N/A | C:\Windows\system32\wscript.exe | C:\Windows\System32\wscript.exe |
| PID 1708 wrote to memory of 1188 | N/A | C:\Windows\system32\wscript.exe | C:\Windows\System32\wscript.exe |
Processes
C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\proceso-0088-002022-685642634.pdf.js
C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\SKVvqgvCri.js"
Network
| Country | Destination | Domain | Proto |
| NO | 194.5.98.48:4456 | 194.5.98.48 | tcp |
Files
memory/1708-54-0x000007FEFBD81000-0x000007FEFBD83000-memory.dmp
memory/1188-55-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\SKVvqgvCri.js
| MD5 | 632e1d5b2d29cef6f5df8691f556d83a |
| SHA1 | c8779f384f25f04906274424479c1adfebb367f7 |
| SHA256 | 8b6c82d207009ca49d2e7d588708e856a4e874cfe9318b74c4cd81998ff2b54d |
| SHA512 | 9e690d94e5461fa3b230b0b123fc092142d2d1af2d3795ba6b5c4e5671dcf4c3cf005a472fc828307fc6e41996d517806f3a950c5f8b0ced3a78d2fd41390c68 |
Analysis: behavioral2
Detonation Overview
Submitted
2022-08-25 17:42
Reported
2022-08-25 17:46
Platform
win10v2004-20220812-en
Max time kernel
145s
Max time network
146s
Command Line
Signatures
Vjw0rm
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\wscript.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation | C:\Windows\system32\wscript.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\proceso-0088-002022-685642634.pdf.js | C:\Windows\system32\wscript.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\proceso-0088-002022-685642634.pdf.js | C:\Windows\system32\wscript.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run | C:\Windows\system32\wscript.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\1ET4SWR6G7 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\proceso-0088-002022-685642634.pdf.js\"" | C:\Windows\system32\wscript.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4940 wrote to memory of 5064 | N/A | C:\Windows\system32\wscript.exe | C:\Windows\System32\wscript.exe |
| PID 4940 wrote to memory of 5064 | N/A | C:\Windows\system32\wscript.exe | C:\Windows\System32\wscript.exe |
Processes
C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\proceso-0088-002022-685642634.pdf.js
C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\SKVvqgvCri.js"
Network
| Country | Destination | Domain | Proto |
| IE | 20.190.159.68:443 | tcp | |
| NO | 194.5.98.48:4456 | 194.5.98.48 | tcp |
| US | 93.184.220.29:80 | tcp | |
| NL | 67.26.105.254:80 | tcp | |
| US | 8.8.8.8:53 | 106.89.54.20.in-addr.arpa | udp |
| BE | 67.27.153.126:80 | tcp | |
| BE | 8.238.111.254:80 | tcp | |
| US | 93.184.221.240:80 | tcp |
Files
memory/5064-132-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\SKVvqgvCri.js
| MD5 | 632e1d5b2d29cef6f5df8691f556d83a |
| SHA1 | c8779f384f25f04906274424479c1adfebb367f7 |
| SHA256 | 8b6c82d207009ca49d2e7d588708e856a4e874cfe9318b74c4cd81998ff2b54d |
| SHA512 | 9e690d94e5461fa3b230b0b123fc092142d2d1af2d3795ba6b5c4e5671dcf4c3cf005a472fc828307fc6e41996d517806f3a950c5f8b0ced3a78d2fd41390c68 |