Analysis Overview
SHA256
48bc766326068e078cf258dea70d49dcce265e4e6dbf18f1a0ce28d310f6a89a
Threat Level: Known bad
The file Purchase_Order.pdf.js was found to be: Known bad.
Malicious Activity Summary
WSHRAT
Blocklisted process makes network request
Checks computer location settings
Drops startup file
Adds Run key to start application
Enumerates physical storage devices
Modifies registry class
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-09-01 19:59
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2023-09-01 19:59
Reported
2023-09-01 20:01
Platform
win7-20230831-en
Max time kernel
118s
Max time network
122s
Command Line
Signatures
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 |
Processes
C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\Purchase_Order.pdf.js
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | grapemundo.com | udp |
| IN | 103.50.163.157:443 | grapemundo.com | tcp |
| IN | 103.50.163.157:443 | grapemundo.com | tcp |
| IN | 103.50.163.157:443 | grapemundo.com | tcp |
| IN | 103.50.163.157:443 | grapemundo.com | tcp |
Files
Analysis: behavioral2
Detonation Overview
Submitted
2023-09-01 19:59
Reported
2023-09-01 20:01
Platform
win10v2004-20230831-en
Max time kernel
150s
Max time network
153s
Command Line
Signatures
WSHRAT
Blocklisted process makes network request
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2848203831-2014322062-3611574811-1000\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\JGWJBL.vbs | C:\Windows\System32\WScript.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\JGWJBL.vbs | C:\Windows\System32\WScript.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2848203831-2014322062-3611574811-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\JGWJBL = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\JGWJBL.vbs\"" | C:\Windows\System32\WScript.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\JGWJBL = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\JGWJBL.vbs\"" | C:\Windows\System32\WScript.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-2848203831-2014322062-3611574811-1000_Classes\Local Settings | C:\Windows\system32\wscript.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1816 wrote to memory of 4764 | N/A | C:\Windows\system32\wscript.exe | C:\Windows\System32\WScript.exe |
| PID 1816 wrote to memory of 4764 | 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\Purchase_Order.pdf.js
C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\JGWJBL.vbs"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | grapemundo.com | udp |
| IN | 103.50.163.157:443 | grapemundo.com | tcp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 157.163.50.103.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 142.33.222.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 69.121.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | chongmei33.publicvm.com | udp |
| US | 172.111.147.88:7045 | chongmei33.publicvm.com | tcp |
| US | 8.8.8.8:53 | 88.147.111.172.in-addr.arpa | udp |
| US | 172.111.147.88:7045 | chongmei33.publicvm.com | tcp |
| US | 172.111.147.88:7045 | chongmei33.publicvm.com | tcp |
| US | 172.111.147.88:7045 | chongmei33.publicvm.com | tcp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 254.21.238.8.in-addr.arpa | udp |
| US | 172.111.147.88:7045 | chongmei33.publicvm.com | tcp |
| US | 172.111.147.88:7045 | chongmei33.publicvm.com | tcp |
| US | 172.111.147.88:7045 | chongmei33.publicvm.com | tcp |
| US | 172.111.147.88:7045 | chongmei33.publicvm.com | tcp |
| US | 172.111.147.88:7045 | chongmei33.publicvm.com | tcp |
| US | 172.111.147.88:7045 | chongmei33.publicvm.com | tcp |
| US | 172.111.147.88:7045 | chongmei33.publicvm.com | tcp |
| US | 172.111.147.88:7045 | chongmei33.publicvm.com | tcp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| US | 172.111.147.88:7045 | chongmei33.publicvm.com | tcp |
| US | 172.111.147.88:7045 | chongmei33.publicvm.com | tcp |
| US | 172.111.147.88:7045 | chongmei33.publicvm.com | tcp |
| US | 172.111.147.88:7045 | chongmei33.publicvm.com | tcp |
| US | 172.111.147.88:7045 | chongmei33.publicvm.com | tcp |
| US | 172.111.147.88:7045 | chongmei33.publicvm.com | tcp |
| US | 172.111.147.88:7045 | chongmei33.publicvm.com | tcp |
| US | 172.111.147.88:7045 | chongmei33.publicvm.com | tcp |
| US | 8.8.8.8:53 | 7.173.189.20.in-addr.arpa | udp |
| US | 172.111.147.88:7045 | chongmei33.publicvm.com | tcp |
| US | 172.111.147.88:7045 | tcp |
Files
C:\Users\Admin\AppData\Local\Temp\JGWJBL.vbs
| MD5 | 788d9b6fd542ea9680d7fd61e3424aec |
| SHA1 | eb4929d2f663fa2bdf3ce6265c85036f4aa88e41 |
| SHA256 | 7384901adc43848e36b00b3a5bd4a1c9743533d81e4fc33f8bcdec0e8e9a0077 |
| SHA512 | 81ff571735f6c09ec06fa09e8174ce8bc6907eb0f786296f53d6147a0998014a5c2336700d7d01abada1000ba2dfeeeabae2b626cdcee0851d1c5433f6f5a94d |
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\JGWJBL.vbs
| MD5 | 788d9b6fd542ea9680d7fd61e3424aec |
| SHA1 | eb4929d2f663fa2bdf3ce6265c85036f4aa88e41 |
| SHA256 | 7384901adc43848e36b00b3a5bd4a1c9743533d81e4fc33f8bcdec0e8e9a0077 |
| SHA512 | 81ff571735f6c09ec06fa09e8174ce8bc6907eb0f786296f53d6147a0998014a5c2336700d7d01abada1000ba2dfeeeabae2b626cdcee0851d1c5433f6f5a94d |