Analysis Overview
SHA256
480402d50da0d411c886bad96a179f93cd6de992c7084c6098fde2dd527b1fd8
Threat Level: Known bad
The file 480402d50da0d411c886bad96a179f93cd6de992c7084c6098fde2dd527b1fd8 was found to be: Known bad.
Malicious Activity Summary
WSHRAT
WSHRAT Payload
Wshrat family
Blocklisted process makes network request
Checks computer location settings
Drops startup file
Looks up external IP address via web service
Adds Run key to start application
Drops file in Windows directory
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-02-08 00:47
Signatures
WSHRAT Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Wshrat family
Analysis: behavioral1
Detonation Overview
Submitted
2022-02-08 00:47
Reported
2022-02-08 03:17
Platform
win7-en-20211208
Max time kernel
153s
Max time network
171s
Command Line
Signatures
WSHRAT
WSHRAT Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Blocklisted process makes network request
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Rechnung2498.js | C:\Windows\system32\wscript.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Rechnung2498.js | C:\Windows\System32\wscript.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rechnung2498 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Rechnung2498.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\Rechnung2498 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Rechnung2498.js\"" | C:\Windows\system32\wscript.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\software\microsoft\windows\currentversion\run | C:\Windows\System32\wscript.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rechnung2498 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Rechnung2498.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\Rechnung2498 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Rechnung2498.js\"" | C:\Windows\System32\wscript.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\software\microsoft\windows\currentversion\run | 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
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1628 wrote to memory of 864 | N/A | C:\Windows\system32\wscript.exe | C:\Windows\System32\wscript.exe |
| PID 1628 wrote to memory of 864 | N/A | C:\Windows\system32\wscript.exe | C:\Windows\System32\wscript.exe |
| PID 1628 wrote to memory of 864 | 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\Rechnung2498.js
C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\Rechnung2498.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 |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp |
Files
memory/1628-55-0x000007FEFC3A1000-0x000007FEFC3A3000-memory.dmp
C:\Users\Admin\AppData\Roaming\Rechnung2498.js
| MD5 | 093aa4289d9d8d8315ab0ea9b306f0a0 |
| SHA1 | 0316c6e558148a10d0acf63bc84f53ca315b1acf |
| SHA256 | 39f7abd459bda03744d7d1dfb7dd15b2204014d75f20d86a13789648d6f44b1d |
| SHA512 | ddea7839a14759a27d17578850fb473f720bf911cb9d6e56c3e55a963eca51a85ae1706d2f8bca31b216fa7ef2457135dd1a198008203e6635cb73fd3df985f8 |
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Rechnung2498.js
| MD5 | 093aa4289d9d8d8315ab0ea9b306f0a0 |
| SHA1 | 0316c6e558148a10d0acf63bc84f53ca315b1acf |
| SHA256 | 39f7abd459bda03744d7d1dfb7dd15b2204014d75f20d86a13789648d6f44b1d |
| SHA512 | ddea7839a14759a27d17578850fb473f720bf911cb9d6e56c3e55a963eca51a85ae1706d2f8bca31b216fa7ef2457135dd1a198008203e6635cb73fd3df985f8 |
Analysis: behavioral2
Detonation Overview
Submitted
2022-02-08 00:47
Reported
2022-02-08 03:17
Platform
win10v2004-en-20220113
Max time kernel
175s
Max time network
193s
Command Line
Signatures
WSHRAT
WSHRAT Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| 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 |
| 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 |
| 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 |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\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\Rechnung2498.js | C:\Windows\system32\wscript.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Rechnung2498.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\Rechnung2498 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Rechnung2498.js\"" | C:\Windows\System32\wscript.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\software\microsoft\windows\currentversion\run | C:\Windows\system32\wscript.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rechnung2498 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Rechnung2498.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\Rechnung2498 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Rechnung2498.js\"" | C:\Windows\system32\wscript.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\software\microsoft\windows\currentversion\run | C:\Windows\System32\wscript.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rechnung2498 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Rechnung2498.js\"" | C:\Windows\System32\wscript.exe | N/A |
| Key created | \REGISTRY\MACHINE\software\microsoft\windows\currentversion\run | 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 |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\WinSxS\pending.xml | C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe | N/A |
| File opened for modification | C:\Windows\WindowsUpdate.log | C:\Windows\system32\svchost.exe | N/A |
| File opened for modification | C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk | C:\Windows\system32\svchost.exe | N/A |
| File opened for modification | C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log | C:\Windows\system32\svchost.exe | N/A |
| File opened for modification | C:\Windows\SoftwareDistribution\DataStore\DataStore.edb | C:\Windows\system32\svchost.exe | N/A |
| File opened for modification | C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm | C:\Windows\system32\svchost.exe | N/A |
| File opened for modification | C:\Windows\SoftwareDistribution\ReportingEvents.log | C:\Windows\system32\svchost.exe | N/A |
| File opened for modification | C:\Windows\Logs\CBS\CBS.log | C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe | N/A |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3220 wrote to memory of 4956 | N/A | C:\Windows\system32\wscript.exe | C:\Windows\System32\wscript.exe |
| PID 3220 wrote to memory of 4956 | 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\Rechnung2498.js
C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\Rechnung2498.js"
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
Network
| Country | Destination | Domain | Proto |
| US | 93.184.220.29:80 | tcp | |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| US | 8.8.8.8:53 | crl3.digicert.com | udp |
| US | 93.184.220.29:80 | crl3.digicert.com | tcp |
| EE | 91.193.75.241:5200 | tcp | |
| US | 8.8.8.8:53 | settings-win.data.microsoft.com | udp |
| US | 52.167.17.97:443 | settings-win.data.microsoft.com | tcp |
| US | 20.42.73.26:443 | tcp | |
| US | 93.184.220.29:80 | crl3.digicert.com | tcp |
| EE | 91.193.75.241:5200 | tcp | |
| US | 93.184.220.29:80 | crl3.digicert.com | tcp |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| US | 8.8.8.8:53 | settings-win.data.microsoft.com | udp |
| US | 52.167.17.97:443 | settings-win.data.microsoft.com | tcp |
| US | 8.8.8.8:53 | crl4.digicert.com | udp |
| US | 93.184.220.29:80 | crl4.digicert.com | tcp |
| EE | 91.193.75.241:5200 | tcp | |
| US | 93.184.220.29:80 | crl4.digicert.com | tcp |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| US | 52.167.17.97:443 | settings-win.data.microsoft.com | tcp |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| US | 8.8.8.8:53 | settings-win.data.microsoft.com | udp |
| NL | 20.73.194.208:443 | settings-win.data.microsoft.com | tcp |
| NL | 20.73.194.208:443 | settings-win.data.microsoft.com | tcp |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| US | 93.184.220.29:80 | crl4.digicert.com | tcp |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp | |
| US | 8.8.8.8:53 | settings-win.data.microsoft.com | udp |
| US | 52.167.249.196:443 | settings-win.data.microsoft.com | tcp |
| EE | 91.193.75.241:5200 | tcp | |
| EE | 91.193.75.241:5200 | tcp |
Files
C:\Users\Admin\AppData\Roaming\Rechnung2498.js
| MD5 | 093aa4289d9d8d8315ab0ea9b306f0a0 |
| SHA1 | 0316c6e558148a10d0acf63bc84f53ca315b1acf |
| SHA256 | 39f7abd459bda03744d7d1dfb7dd15b2204014d75f20d86a13789648d6f44b1d |
| SHA512 | ddea7839a14759a27d17578850fb473f720bf911cb9d6e56c3e55a963eca51a85ae1706d2f8bca31b216fa7ef2457135dd1a198008203e6635cb73fd3df985f8 |
C:\Users\Admin\AppData\Roaming\Rechnung2498.js
| MD5 | 093aa4289d9d8d8315ab0ea9b306f0a0 |
| SHA1 | 0316c6e558148a10d0acf63bc84f53ca315b1acf |
| SHA256 | 39f7abd459bda03744d7d1dfb7dd15b2204014d75f20d86a13789648d6f44b1d |
| SHA512 | ddea7839a14759a27d17578850fb473f720bf911cb9d6e56c3e55a963eca51a85ae1706d2f8bca31b216fa7ef2457135dd1a198008203e6635cb73fd3df985f8 |
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Rechnung2498.js
| MD5 | e8976e949375df83a0976c46c080502c |
| SHA1 | 5b4aad371be99b6dd258dc7ec7265e6f5ab11469 |
| SHA256 | 53240824eea817ffacf2f7d5f48d50dd3cbb5e74a346c1b753b68cbffce5f8ec |
| SHA512 | 12fc353e7113a756e4666e38e768bda0592a0b59fbed02104bdd134d30d0f4a94fc2b4ba6c88b96e14470afcbbfabba740214c28aa30f9121bf700eaa59c1090 |
memory/3472-145-0x0000021962E60000-0x0000021962E64000-memory.dmp