Analysis Overview
SHA256
3e61b1cfc096af4b8b8371daaf4f233af9d00286232d16159b3ce77a17f3dba7
Threat Level: Known bad
The file upsver.js was found to be: Known bad.
Malicious Activity Summary
Vjw0rm
Blocklisted process makes network request
Checks computer location settings
Drops startup file
Adds Run key to start application
Enumerates physical storage devices
Uses Task Scheduler COM API
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-02-27 21:29
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2023-02-27 21:29
Reported
2023-02-27 21:31
Platform
win7-20230220-en
Max time kernel
145s
Max time network
152s
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\upsver.js | C:\Windows\system32\wscript.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\upsver.js | C:\Windows\system32\wscript.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Windows\CurrentVersion\Run | C:\Windows\system32\wscript.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Windows\CurrentVersion\Run\QFBMGXAUBF = "'C:\\Users\\Admin\\AppData\\Local\\Temp\\upsver.js'" | C:\Windows\system32\wscript.exe | N/A |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\schtasks.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1304 wrote to memory of 1140 | N/A | C:\Windows\system32\wscript.exe | C:\Windows\System32\schtasks.exe |
| PID 1304 wrote to memory of 1140 | N/A | C:\Windows\system32\wscript.exe | C:\Windows\System32\schtasks.exe |
| PID 1304 wrote to memory of 1140 | N/A | C:\Windows\system32\wscript.exe | C:\Windows\System32\schtasks.exe |
Uses Task Scheduler COM API
Processes
C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\upsver.js
C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr 'C:\Users\Admin\AppData\Local\Temp\upsver.js
Network
| Country | Destination | Domain | Proto |
| US | 66.154.102.135:9909 | 66.154.102.135 | tcp |
Files
Analysis: behavioral2
Detonation Overview
Submitted
2023-02-27 21:29
Reported
2023-02-27 21:31
Platform
win10v2004-20230220-en
Max time kernel
150s
Max time network
154s
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-1-5-21-1675742406-747946869-1029867430-1000\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\upsver.js | C:\Windows\system32\wscript.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\upsver.js | C:\Windows\system32\wscript.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows\CurrentVersion\Run | C:\Windows\system32\wscript.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\QFBMGXAUBF = "'C:\\Users\\Admin\\AppData\\Local\\Temp\\upsver.js'" | C:\Windows\system32\wscript.exe | N/A |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\schtasks.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 220 wrote to memory of 644 | N/A | C:\Windows\system32\wscript.exe | C:\Windows\System32\schtasks.exe |
| PID 220 wrote to memory of 644 | N/A | C:\Windows\system32\wscript.exe | C:\Windows\System32\schtasks.exe |
Uses Task Scheduler COM API
Processes
C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\upsver.js
C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr 'C:\Users\Admin\AppData\Local\Temp\upsver.js
Network
| Country | Destination | Domain | Proto |
| NL | 88.221.25.155:80 | tcp | |
| US | 66.154.102.135:9909 | 66.154.102.135 | tcp |
| US | 8.8.8.8:53 | 135.102.154.66.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 210.81.184.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 44.8.109.52.in-addr.arpa | udp |
| NL | 87.248.202.1:80 | tcp | |
| NL | 87.248.202.1:80 | tcp | |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| NL | 173.223.113.164:443 | tcp | |
| NL | 173.223.113.131:80 | tcp | |
| US | 204.79.197.203:80 | tcp | |
| US | 8.8.8.8:53 | 161.252.72.23.in-addr.arpa | udp |