Analysis Overview
SHA256
d2d2d9e5730335867810ac8a3c95a75d36982ababaefd10d197ee4e79ac0fd88
Threat Level: Known bad
The file wynlog02.js was found to be: Known bad.
Malicious Activity Summary
Wshrat family
WSHRAT
WSHRAT payload
Blocklisted process makes network request
Drops startup file
Looks up external IP address via web service
Adds Run key to start application
Enumerates physical storage devices
Script User-Agent
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-11-03 11:36
Signatures
WSHRAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Wshrat family
Analysis: behavioral1
Detonation Overview
Submitted
2022-11-03 11:36
Reported
2022-11-03 11:38
Platform
win7-20220812-en
Max time kernel
114s
Max time network
151s
Command Line
Signatures
WSHRAT
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\wscript.exe | N/A |
| N/A | N/A | C:\Windows\system32\wscript.exe | N/A |
| N/A | N/A | C:\Windows\system32\wscript.exe | N/A |
| N/A | N/A | C:\Windows\system32\wscript.exe | N/A |
| 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\wynlog02.js | C:\Windows\system32\wscript.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\wynlog02.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\wynlog02 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\wynlog02.js\"" | C:\Windows\system32\wscript.exe | N/A |
| Key created | \REGISTRY\MACHINE\software\microsoft\windows\currentversion\run | C:\Windows\system32\wscript.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wynlog02 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\wynlog02.js\"" | C:\Windows\system32\wscript.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ip-api.com | N/A | N/A |
Enumerates physical storage devices
Script User-Agent
| Description | Indicator | Process | Target |
| HTTP User-Agent header | WSHRAT|D44DAEDB|ORXGKKZC|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 3/11/2022|JavaScript-v3.4|NL:Netherlands | N/A | N/A |
| HTTP User-Agent header | WSHRAT|D44DAEDB|ORXGKKZC|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 3/11/2022|JavaScript-v3.4|NL:Netherlands | N/A | N/A |
| HTTP User-Agent header | WSHRAT|D44DAEDB|ORXGKKZC|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 3/11/2022|JavaScript-v3.4|NL:Netherlands | N/A | N/A |
| HTTP User-Agent header | WSHRAT|D44DAEDB|ORXGKKZC|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 3/11/2022|JavaScript-v3.4|NL:Netherlands | N/A | N/A |
Processes
C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\wynlog02.js
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| NL | 45.139.105.174:3670 | 45.139.105.174 | tcp |
| NL | 45.139.105.174:3670 | 45.139.105.174 | tcp |
| NL | 45.139.105.174:3670 | 45.139.105.174 | tcp |
| NL | 45.139.105.174:3670 | 45.139.105.174 | tcp |
Files
memory/1976-54-0x000007FEFC161000-0x000007FEFC163000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-11-03 11:36
Reported
2022-11-03 11:38
Platform
win10v2004-20220812-en
Max time kernel
141s
Max time network
144s
Command Line
Signatures
WSHRAT
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\wscript.exe | N/A |
| N/A | N/A | C:\Windows\system32\wscript.exe | N/A |
| N/A | N/A | C:\Windows\system32\wscript.exe | N/A |
| N/A | N/A | C:\Windows\system32\wscript.exe | N/A |
| N/A | N/A | C:\Windows\system32\wscript.exe | N/A |
| 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\wynlog02.js | C:\Windows\system32\wscript.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\wynlog02.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\wynlog02 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\wynlog02.js\"" | C:\Windows\system32\wscript.exe | N/A |
| Key created | \REGISTRY\MACHINE\software\microsoft\windows\currentversion\run | C:\Windows\system32\wscript.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wynlog02 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\wynlog02.js\"" | C:\Windows\system32\wscript.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ip-api.com | N/A | N/A |
Enumerates physical storage devices
Script User-Agent
| Description | Indicator | Process | Target |
| HTTP User-Agent header | WSHRAT|18024990|TMKNGOMU|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 3/11/2022|JavaScript-v3.4|NL:Netherlands | N/A | N/A |
| HTTP User-Agent header | WSHRAT|18024990|TMKNGOMU|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 3/11/2022|JavaScript-v3.4|NL:Netherlands | N/A | N/A |
| HTTP User-Agent header | WSHRAT|18024990|TMKNGOMU|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 3/11/2022|JavaScript-v3.4|NL:Netherlands | N/A | N/A |
| HTTP User-Agent header | WSHRAT|18024990|TMKNGOMU|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 3/11/2022|JavaScript-v3.4|NL:Netherlands | N/A | N/A |
| HTTP User-Agent header | WSHRAT|18024990|TMKNGOMU|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 3/11/2022|JavaScript-v3.4|NL:Netherlands | N/A | N/A |
Processes
C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\wynlog02.js
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| NL | 45.139.105.174:3670 | 45.139.105.174 | tcp |
| NL | 45.139.105.174:3670 | 45.139.105.174 | tcp |
| BE | 8.238.111.254:80 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| NL | 45.139.105.174:3670 | 45.139.105.174 | tcp |
| BE | 8.238.111.254:80 | tcp | |
| NL | 45.139.105.174:3670 | 45.139.105.174 | tcp |
| CA | 149.56.27.47:3956 | tcp | |
| NL | 45.139.105.174:3670 | 45.139.105.174 | tcp |