Analysis Overview
SHA256
2c37e02bdc9b3e4cceb432473d5a547fc0ed31d5d35ee141fb9247eed45458e0
Threat Level: Known bad
The file ezz.exe was found to be: Known bad.
Malicious Activity Summary
Orcus
Orcus family
Checks computer location settings
Executes dropped EXE
Legitimate hosting services abused for malware hosting/C2
Drops desktop.ini file(s)
Drops file in System32 directory
Drops file in Windows directory
Enumerates physical storage devices
Unsigned PE
System Location Discovery: System Language Discovery
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Suspicious use of SendNotifyMessage
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-01-15 20:17
Signatures
Orcus family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-01-15 20:17
Reported
2025-01-15 20:19
Platform
win10ltsc2021-20250113-en
Max time kernel
101s
Max time network
123s
Command Line
Signatures
Orcus
Orcus family
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3982764349-3037452555-3708423086-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\ezz.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WindowsInput.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
Drops desktop.ini file(s)
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\ezz.exe | N/A |
| File created | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\ezz.exe | N/A |
Legitimate hosting services abused for malware hosting/C2
| Description | Indicator | Process | Target |
| N/A | 0.tcp.ngrok.io | N/A | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\WindowsInput.exe | C:\Users\Admin\AppData\Local\Temp\ezz.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\WindowsInput.InstallLog | C:\Windows\SysWOW64\WindowsInput.exe | N/A |
| File created | C:\Windows\SysWOW64\WindowsInput.InstallState | C:\Windows\SysWOW64\WindowsInput.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\assembly | C:\Users\Admin\AppData\Local\Temp\ezz.exe | N/A |
| File created | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\ezz.exe | N/A |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\ezz.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\ezz.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3448 wrote to memory of 3744 | N/A | C:\Users\Admin\AppData\Local\Temp\ezz.exe | C:\Windows\SysWOW64\WindowsInput.exe |
| PID 3448 wrote to memory of 3744 | N/A | C:\Users\Admin\AppData\Local\Temp\ezz.exe | C:\Windows\SysWOW64\WindowsInput.exe |
| PID 3448 wrote to memory of 3780 | N/A | C:\Users\Admin\AppData\Local\Temp\ezz.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 3448 wrote to memory of 3780 | N/A | C:\Users\Admin\AppData\Local\Temp\ezz.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 3448 wrote to memory of 3780 | N/A | C:\Users\Admin\AppData\Local\Temp\ezz.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\ezz.exe
"C:\Users\Admin\AppData\Local\Temp\ezz.exe"
C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe" --install
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 167.173.78.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.tcp.ngrok.io | udp |
| US | 3.12.57.198:19843 | 0.tcp.ngrok.io | tcp |
| US | 8.8.8.8:53 | 198.57.12.3.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | fd.api.iris.microsoft.com | udp |
| IE | 20.223.36.55:443 | fd.api.iris.microsoft.com | tcp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.49.80.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.153.16.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
Files
memory/3448-0-0x0000000074812000-0x0000000074813000-memory.dmp
memory/3448-1-0x0000000074810000-0x0000000074DC1000-memory.dmp
memory/3448-2-0x0000000074810000-0x0000000074DC1000-memory.dmp
C:\Windows\SysWOW64\WindowsInput.exe
| MD5 | e854a4636afc652b320e12e50ba4080e |
| SHA1 | 8a4ac6ecc22ee5f3a8ec846d38b41ff18c641fdc |
| SHA256 | 94b9c78c6fa2bf61fba20a08ad4563f7dd2f5668c28eff227965ce0a2032d5d5 |
| SHA512 | 30aabd5079b6ed0948eb70fd18e9166096e4ba5d1d47fc35b7270f931d19bbe6cd929b6010f70297bf5272dc5a79e2523721354d211c4080d68ad8d17e316118 |
memory/3744-19-0x00007FFF26D35000-0x00007FFF26D36000-memory.dmp
memory/3744-20-0x0000000000B40000-0x0000000000B58000-memory.dmp
memory/3744-21-0x0000000000B80000-0x0000000000BA0000-memory.dmp
memory/3744-22-0x00007FFF26A80000-0x00007FFF27421000-memory.dmp
memory/3744-23-0x00007FFF26A80000-0x00007FFF27421000-memory.dmp
memory/3744-26-0x000000001B580000-0x000000001B5A4000-memory.dmp
memory/3744-34-0x000000001BEE0000-0x000000001C3AE000-memory.dmp
memory/3744-35-0x000000001C450000-0x000000001C4EC000-memory.dmp
C:\Windows\SysWOW64\WindowsInput.InstallLog
| MD5 | c2291863df7c2d3038ce3c22fa276506 |
| SHA1 | 7b7d2bc07a6c35523807342c747c9b6a19f3184e |
| SHA256 | 14504199bede3f46129969dbd2b7680f2e5b7fcd73a3e427ce1bb6217a6d13da |
| SHA512 | 00bf40174a67e3e663d18a887c5b461a1e5ead0b27f0a139d87969158c58f4ca72cfa5a731dda239356192ca4cb5ac6ae2b0e37401d534e686cabacd3cbee8fa |
memory/3744-52-0x00007FFF26A80000-0x00007FFF27421000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 26dbe3f6d0e41f748f3e9f98d428ae5b |
| SHA1 | 6e4217522845257c5b3c6760428b80fa236213b1 |
| SHA256 | 2c37e02bdc9b3e4cceb432473d5a547fc0ed31d5d35ee141fb9247eed45458e0 |
| SHA512 | 83bc701441fc46f887e071561c5b4ec6b249fe0b0b12d3ed53de3362fd86054327bf64435280c7cb5f1c6cb124a557f249868b7142d44c017f34b84be5b9e879 |
memory/3780-57-0x0000000074810000-0x0000000074DC1000-memory.dmp
memory/3780-58-0x0000000074810000-0x0000000074DC1000-memory.dmp
memory/3448-56-0x0000000074810000-0x0000000074DC1000-memory.dmp
memory/3780-55-0x0000000074812000-0x0000000074813000-memory.dmp
memory/3780-59-0x0000000074810000-0x0000000074DC1000-memory.dmp
memory/3780-61-0x0000000074810000-0x0000000074DC1000-memory.dmp