Analysis Overview
SHA256
6b12cfb0d109c8944d64556320bb63e2b0a287b8583c16cc4eb3b32f86fe31c8
Threat Level: Known bad
The file PO.js was found to be: Known bad.
Malicious Activity Summary
Vjw0rm
WSHRAT
WSHRAT payload
Blocklisted process makes network request
Drops startup file
Checks computer location settings
Adds Run key to start application
Looks up external IP address via web service
Enumerates physical storage devices
Modifies registry class
Suspicious use of WriteProcessMemory
Script User-Agent
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-11-01 09:06
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-11-01 09:06
Reported
2022-11-01 09:08
Platform
win7-20220812-en
Max time kernel
153s
Max time network
160s
Command Line
Signatures
Vjw0rm
WSHRAT
WSHRAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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 |
| 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\PO.js | C:\Windows\system32\wscript.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PO.js | C:\Windows\system32\wscript.exe | N/A |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\K3VRVF5TEJ.js | C:\Windows\System32\WScript.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\K3VRVF5TEJ.js | C:\Windows\System32\WScript.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run | C:\Windows\system32\wscript.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\2JZFR52JWJ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\PO.js\"" | C:\Windows\system32\wscript.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\software\microsoft\windows\currentversion\run | C:\Windows\System32\WScript.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\K3VRVF5TEJ = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\K3VRVF5TEJ.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\K3VRVF5TEJ = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\K3VRVF5TEJ.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|5C41F0CB|ZERMMMDR|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 1/11/2022|JavaScript-v3.4|NL:Netherlands | N/A | N/A |
| HTTP User-Agent header | WSHRAT|5C41F0CB|ZERMMMDR|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 1/11/2022|JavaScript-v3.4|NL:Netherlands | N/A | N/A |
| HTTP User-Agent header | WSHRAT|5C41F0CB|ZERMMMDR|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 1/11/2022|JavaScript-v3.4|NL:Netherlands | N/A | N/A |
| HTTP User-Agent header | WSHRAT|5C41F0CB|ZERMMMDR|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 1/11/2022|JavaScript-v3.4|NL:Netherlands | N/A | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2012 wrote to memory of 432 | N/A | C:\Windows\system32\wscript.exe | C:\Windows\System32\WScript.exe |
| PID 2012 wrote to memory of 432 | N/A | C:\Windows\system32\wscript.exe | C:\Windows\System32\WScript.exe |
| PID 2012 wrote to memory of 432 | 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\PO.js
C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\K3VRVF5TEJ.js"
Network
| Country | Destination | Domain | Proto |
| NL | 212.193.30.230:6505 | 212.193.30.230 | tcp |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| NL | 212.193.30.230:3605 | 212.193.30.230 | tcp |
| NL | 212.193.30.230:3605 | 212.193.30.230 | tcp |
| NL | 212.193.30.230:3605 | 212.193.30.230 | tcp |
| NL | 212.193.30.230:3605 | 212.193.30.230 | tcp |
| NL | 212.193.30.230:3605 | tcp |
Files
memory/2012-54-0x000007FEFB741000-0x000007FEFB743000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\K3VRVF5TEJ.js
| MD5 | f50524dfc4c60f0f399bb5c4a1572d18 |
| SHA1 | 7ed8be558150cf1b979150c7ca6bf9278a96ff9d |
| SHA256 | 10c880bf2129d24a52c3442cbd030787058cc4621197838ca7a4987be39c0fa7 |
| SHA512 | 7775792c92c180edb0d73455eb761c465fd90137345d61add9f8febbfe13903580b02589775849f422ffffe01076a53be4cdf01eaebc222ab1df6f3a5206fb14 |
memory/432-55-0x0000000000000000-mapping.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-11-01 09:06
Reported
2022-11-01 09:08
Platform
win10v2004-20220812-en
Max time kernel
131s
Max time network
152s
Command Line
Signatures
Vjw0rm
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 |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation | C:\Windows\system32\wscript.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\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\MM456F833Q.js | C:\Windows\System32\WScript.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MM456F833Q.js | C:\Windows\System32\wscript.exe | N/A |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PO.js | C:\Windows\system32\wscript.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PO.js | C:\Windows\system32\wscript.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MM456F833Q = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\MM456F833Q.js\"" | C:\Windows\System32\WScript.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MM456F833Q = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\MM456F833Q.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\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MM456F833Q = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\MM456F833Q.js\"" | C:\Windows\System32\WScript.exe | N/A |
| Key created | \REGISTRY\MACHINE\software\microsoft\windows\currentversion\run | C:\Windows\System32\WScript.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\software\microsoft\windows\currentversion\run | C:\Windows\System32\WScript.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\software\microsoft\windows\currentversion\run | C:\Windows\System32\wscript.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MM456F833Q = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\MM456F833Q.js\"" | C:\Windows\System32\wscript.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run | C:\Windows\system32\wscript.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2JZFR52JWJ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\PO.js\"" | C:\Windows\system32\wscript.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings | C:\Windows\system32\wscript.exe | N/A |
Script User-Agent
| Description | Indicator | Process | Target |
| HTTP User-Agent header | WSHRAT|94D95F5C|GBQHURCC|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 1/11/2022|JavaScript | N/A | N/A |
| HTTP User-Agent header | WSHRAT|94D95F5C|GBQHURCC|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 1/11/2022|JavaScript | N/A | N/A |
| HTTP User-Agent header | WSHRAT|94D95F5C|GBQHURCC|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 1/11/2022|JavaScript | N/A | N/A |
| HTTP User-Agent header | WSHRAT|94D95F5C|GBQHURCC|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 1/11/2022|JavaScript | N/A | N/A |
| HTTP User-Agent header | WSHRAT|94D95F5C|GBQHURCC|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 1/11/2022|JavaScript | N/A | N/A |
| HTTP User-Agent header | WSHRAT|94D95F5C|GBQHURCC|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 1/11/2022|JavaScript | N/A | N/A |
| HTTP User-Agent header | WSHRAT|94D95F5C|GBQHURCC|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 1/11/2022|JavaScript | N/A | N/A |
| HTTP User-Agent header | WSHRAT|94D95F5C|GBQHURCC|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 1/11/2022|JavaScript | N/A | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4816 wrote to memory of 4404 | N/A | C:\Windows\system32\wscript.exe | C:\Windows\System32\WScript.exe |
| PID 4816 wrote to memory of 4404 | N/A | C:\Windows\system32\wscript.exe | C:\Windows\System32\WScript.exe |
| PID 4404 wrote to memory of 4428 | N/A | C:\Windows\System32\WScript.exe | C:\Windows\System32\wscript.exe |
| PID 4404 wrote to memory of 4428 | 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\PO.js
C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\MM456F833Q.js"
C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\MM456F833Q.js"
Network
| Country | Destination | Domain | Proto |
| NL | 212.193.30.230:6505 | 212.193.30.230 | tcp |
| NL | 95.101.78.82:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 20.42.65.85:443 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| NL | 212.193.30.230:7780 | 212.193.30.230 | tcp |
| NL | 212.193.30.230:7780 | 212.193.30.230 | tcp |
| NL | 212.193.30.230:7780 | 212.193.30.230 | tcp |
| NL | 212.193.30.230:7780 | 212.193.30.230 | tcp |
| NL | 212.193.30.230:7780 | 212.193.30.230 | tcp |
| NL | 212.193.30.230:7780 | 212.193.30.230 | tcp |
| NL | 212.193.30.230:7780 | 212.193.30.230 | tcp |
| NL | 212.193.30.230:7780 | 212.193.30.230 | tcp |
Files
memory/4404-132-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\MM456F833Q.js
| MD5 | 963ca126766bbcd9e8384b9ef2c74673 |
| SHA1 | 59ac9982bde3dcf4d4a89e99b8ab08fedce02ba5 |
| SHA256 | 7549db05702b59ca48c9faaab687273bbe8abad0c8d27540ca89f63ed3c9ed5a |
| SHA512 | 0df472aa3d72ab2cb7269eb55c3b4a05a3b654a280ccec9f5bd10f6dca07d98ea9c3cb0be101fa5ad973fa718e16c0605ac4a4d8e94952b18140f4c9394d2480 |
memory/4428-134-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\MM456F833Q.js
| MD5 | 963ca126766bbcd9e8384b9ef2c74673 |
| SHA1 | 59ac9982bde3dcf4d4a89e99b8ab08fedce02ba5 |
| SHA256 | 7549db05702b59ca48c9faaab687273bbe8abad0c8d27540ca89f63ed3c9ed5a |
| SHA512 | 0df472aa3d72ab2cb7269eb55c3b4a05a3b654a280ccec9f5bd10f6dca07d98ea9c3cb0be101fa5ad973fa718e16c0605ac4a4d8e94952b18140f4c9394d2480 |
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MM456F833Q.js
| MD5 | 963ca126766bbcd9e8384b9ef2c74673 |
| SHA1 | 59ac9982bde3dcf4d4a89e99b8ab08fedce02ba5 |
| SHA256 | 7549db05702b59ca48c9faaab687273bbe8abad0c8d27540ca89f63ed3c9ed5a |
| SHA512 | 0df472aa3d72ab2cb7269eb55c3b4a05a3b654a280ccec9f5bd10f6dca07d98ea9c3cb0be101fa5ad973fa718e16c0605ac4a4d8e94952b18140f4c9394d2480 |