Analysis Overview
SHA256
a7c88664fac921577e23dbe47c0c54c02ca5547dc08e2e30699c88c65925d293
Threat Level: Likely malicious
The file a7c88664fac921577e23dbe47c0c54c02ca5547dc08e2e30699c88c65925d293N was found to be: Likely malicious.
Malicious Activity Summary
Disables Task Manager via registry modification
Deletes itself
Sets desktop wallpaper using registry
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Modifies Internet Explorer settings
Suspicious behavior: RenamesItself
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-10-05 20:00
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-10-05 20:00
Reported
2024-10-05 20:02
Platform
win7-20240903-en
Max time kernel
110s
Max time network
16s
Command Line
Signatures
Disables Task Manager via registry modification
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Sets desktop wallpaper using registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Themes\\TranscodedWallpaper.jpg" | C:\Users\Admin\AppData\Local\Temp\a7c88664fac921577e23dbe47c0c54c02ca5547dc08e2e30699c88c65925d293N.exe | N/A |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\a7c88664fac921577e23dbe47c0c54c02ca5547dc08e2e30699c88c65925d293N.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\a7c88664fac921577e23dbe47c0c54c02ca5547dc08e2e30699c88c65925d293N.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
Modifies Internet Explorer settings
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Internet Explorer\Desktop\General | C:\Users\Admin\AppData\Local\Temp\a7c88664fac921577e23dbe47c0c54c02ca5547dc08e2e30699c88c65925d293N.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Internet Explorer\Desktop\General\WallpaperSource = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg" | C:\Users\Admin\AppData\Local\Temp\a7c88664fac921577e23dbe47c0c54c02ca5547dc08e2e30699c88c65925d293N.exe | N/A |
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a7c88664fac921577e23dbe47c0c54c02ca5547dc08e2e30699c88c65925d293N.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\a7c88664fac921577e23dbe47c0c54c02ca5547dc08e2e30699c88c65925d293N.exe
"C:\Users\Admin\AppData\Local\Temp\a7c88664fac921577e23dbe47c0c54c02ca5547dc08e2e30699c88c65925d293N.exe"
C:\Users\Admin\AppData\Local\Temp\a7c88664fac921577e23dbe47c0c54c02ca5547dc08e2e30699c88c65925d293N.exe
"C:\Users\Admin\AppData\Local\Temp\a7c88664fac921577e23dbe47c0c54c02ca5547dc08e2e30699c88c65925d293N.exe" del
C:\Windows\SysWOW64\cmd.exe
/c del C:\Users\Admin\AppData\Local\Temp\A7C886~1.EXE.tmp >> NUL
Network
Files
memory/2816-4-0x0000000000400000-0x000000000041F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-10-05 20:00
Reported
2024-10-05 20:02
Platform
win10v2004-20240802-en
Max time kernel
94s
Max time network
98s
Command Line
Signatures
Disables Task Manager via registry modification
Sets desktop wallpaper using registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\Desktop\Wallpaper = "\x01" | C:\Users\Admin\AppData\Local\Temp\a7c88664fac921577e23dbe47c0c54c02ca5547dc08e2e30699c88c65925d293N.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\a7c88664fac921577e23dbe47c0c54c02ca5547dc08e2e30699c88c65925d293N.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\a7c88664fac921577e23dbe47c0c54c02ca5547dc08e2e30699c88c65925d293N.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
Modifies Internet Explorer settings
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Desktop\General | C:\Users\Admin\AppData\Local\Temp\a7c88664fac921577e23dbe47c0c54c02ca5547dc08e2e30699c88c65925d293N.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Desktop\General\WallpaperSource = "\x01" | C:\Users\Admin\AppData\Local\Temp\a7c88664fac921577e23dbe47c0c54c02ca5547dc08e2e30699c88c65925d293N.exe | N/A |
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a7c88664fac921577e23dbe47c0c54c02ca5547dc08e2e30699c88c65925d293N.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\a7c88664fac921577e23dbe47c0c54c02ca5547dc08e2e30699c88c65925d293N.exe
"C:\Users\Admin\AppData\Local\Temp\a7c88664fac921577e23dbe47c0c54c02ca5547dc08e2e30699c88c65925d293N.exe"
C:\Users\Admin\AppData\Local\Temp\a7c88664fac921577e23dbe47c0c54c02ca5547dc08e2e30699c88c65925d293N.exe
"C:\Users\Admin\AppData\Local\Temp\a7c88664fac921577e23dbe47c0c54c02ca5547dc08e2e30699c88c65925d293N.exe" del
C:\Windows\SysWOW64\cmd.exe
/c del C:\Users\Admin\AppData\Local\Temp\A7C886~1.EXE.tmp >> NUL
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 66.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.236.111.52.in-addr.arpa | udp |
Files
memory/5008-0-0x0000000000400000-0x000000000041F000-memory.dmp