Analysis Overview
SHA256
ddf1b79f563d94bb3ddb46b37aa010d95403dc7a1debfc9476a8ab449472b738
Threat Level: Likely malicious
The file SmartDefragmenter.zip was found to be: Likely malicious.
Malicious Activity Summary
Disables Task Manager via registry modification
Executes dropped EXE
Checks computer location settings
Adds Run key to start application
Unsigned PE
Enumerates physical storage devices
Suspicious behavior: RenamesItself
System policy modification
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-13 22:30
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-13 22:30
Reported
2024-06-13 22:31
Platform
win10v2004-20240508-en
Max time kernel
26s
Max time network
35s
Command Line
Signatures
Disables Task Manager via registry modification
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\[email protected] | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\winsp2up.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winsp2up.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\winsp2up.exe" | C:\Users\Admin\AppData\Local\Temp\[email protected] | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\winsp2up.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\winsp2up.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\winsp2up.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\winsp2up.exe | N/A |
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\[email protected] | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\[email protected] | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\winsp2up.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2984 wrote to memory of 3048 | N/A | C:\Users\Admin\AppData\Local\Temp\[email protected] | C:\Users\Admin\AppData\Local\Temp\winsp2up.exe |
| PID 2984 wrote to memory of 3048 | N/A | C:\Users\Admin\AppData\Local\Temp\[email protected] | C:\Users\Admin\AppData\Local\Temp\winsp2up.exe |
| PID 2984 wrote to memory of 3048 | N/A | C:\Users\Admin\AppData\Local\Temp\[email protected] | C:\Users\Admin\AppData\Local\Temp\winsp2up.exe |
| PID 3048 wrote to memory of 3372 | N/A | C:\Users\Admin\AppData\Local\Temp\winsp2up.exe | C:\Windows\Explorer.EXE |
| PID 3048 wrote to memory of 3372 | N/A | C:\Users\Admin\AppData\Local\Temp\winsp2up.exe | C:\Windows\Explorer.EXE |
System policy modification
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System | C:\Users\Admin\AppData\Local\Temp\[email protected] | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr = "1" | C:\Users\Admin\AppData\Local\Temp\[email protected] | N/A |
Processes
C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
C:\Users\Admin\AppData\Local\Temp\[email protected]
"C:\Users\Admin\AppData\Local\Temp\[email protected]"
C:\Users\Admin\AppData\Local\Temp\winsp2up.exe
"C:\Users\Admin\AppData\Local\Temp\winsp2up.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
Files
memory/2984-0-0x0000000000B20000-0x0000000000B87000-memory.dmp
memory/2984-1-0x0000000000400000-0x0000000000470000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\winsp2up.exe
| MD5 | 03baeba6b4224371cca7fa6f95ae61c0 |
| SHA1 | 8731202d2f954421a37b5c9e01d971131bd515f1 |
| SHA256 | 61a9e3278b6bcc29a2a0405b06fb2a3bbcb1751c3dd564a8f94cc89ea957ec35 |
| SHA512 | 386643b0a52b6b1a53e81a8500d040b6415e532ebaffd1be8d1afd4ccb10f6c0342cf734b688ec803b960339284c8d9669e638b1648d9cc734cf7367659c7fd0 |
memory/2984-13-0x0000000000400000-0x000000000054F000-memory.dmp
memory/2984-14-0x0000000000400000-0x0000000000470000-memory.dmp
memory/3048-15-0x0000000000400000-0x000000000054F000-memory.dmp
memory/3048-16-0x0000000000400000-0x000000000054F000-memory.dmp
memory/3048-18-0x0000000000400000-0x000000000054F000-memory.dmp