Analysis Overview
SHA256
a83d873568dd41be58d05aa7085684f05793bde5d5c28a1b2070e3a5f16bbfb8
Threat Level: Known bad
The file segseg.exe was found to be: Known bad.
Malicious Activity Summary
Orcus
Orcus family
Disables Task Manager via registry modification
Loads dropped DLL
Reads data files stored by FTP clients
Executes dropped EXE
Reads WinSCP keys stored on the system
Reads user/profile data of web browsers
Checks computer location settings
Looks up external IP address via web service
Checks installed software on the system
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetWindowsHookEx
Suspicious use of FindShellTrayWindow
Suspicious behavior: EnumeratesProcesses
Suspicious use of SendNotifyMessage
Checks processor information in registry
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-28 19:58
Signatures
Orcus family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-28 19:58
Reported
2024-11-28 20:01
Platform
win7-20241010-en
Max time kernel
21s
Max time network
142s
Command Line
Signatures
Orcus
Orcus family
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\segseg.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\segseg.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 |
| 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 SetWindowsHookEx
| 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 2060 wrote to memory of 2884 | N/A | C:\Users\Admin\AppData\Local\Temp\segseg.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2060 wrote to memory of 2884 | N/A | C:\Users\Admin\AppData\Local\Temp\segseg.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2060 wrote to memory of 2884 | N/A | C:\Users\Admin\AppData\Local\Temp\segseg.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2060 wrote to memory of 2884 | N/A | C:\Users\Admin\AppData\Local\Temp\segseg.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\segseg.exe
"C:\Users\Admin\AppData\Local\Temp\segseg.exe"
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"
Network
| Country | Destination | Domain | Proto |
| N/A | 127.0.0.1:7000 | tcp | |
| US | 8.8.8.8:53 | email-hitting.gl.at.ply.gg | udp |
| US | 147.185.221.22:63341 | email-hitting.gl.at.ply.gg | tcp |
Files
memory/2060-0-0x00000000749FE000-0x00000000749FF000-memory.dmp
memory/2060-1-0x0000000000380000-0x0000000000458000-memory.dmp
memory/2060-2-0x00000000001C0000-0x00000000001CA000-memory.dmp
memory/2060-3-0x00000000749F0000-0x00000000750DE000-memory.dmp
memory/2060-4-0x0000000000820000-0x000000000086C000-memory.dmp
memory/2060-7-0x00000000008C0000-0x000000000090E000-memory.dmp
\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 0994b37669146a1384224c18299c054f |
| SHA1 | cf9e3baf60db3b3813a87eaf8d1281105adab7f4 |
| SHA256 | a83d873568dd41be58d05aa7085684f05793bde5d5c28a1b2070e3a5f16bbfb8 |
| SHA512 | 536162a78038e954bab16dd79284a71fa05faf69476a4cf7579c40b2446fe93b85889e00ee98c4087954bb498ae437634010b81b091a18c69488b6a68adf69da |
memory/2884-15-0x00000000749F0000-0x00000000750DE000-memory.dmp
memory/2060-14-0x00000000749F0000-0x00000000750DE000-memory.dmp
memory/2884-16-0x0000000000A40000-0x0000000000B18000-memory.dmp
memory/2884-17-0x00000000749F0000-0x00000000750DE000-memory.dmp
memory/2884-18-0x0000000000A10000-0x0000000000A20000-memory.dmp
memory/2884-19-0x00000000749F0000-0x00000000750DE000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\CabB905.tmp
| MD5 | 49aebf8cbd62d92ac215b2923fb1b9f5 |
| SHA1 | 1723be06719828dda65ad804298d0431f6aff976 |
| SHA256 | b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f |
| SHA512 | bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b |
memory/2884-36-0x0000000004360000-0x000000000436C000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-28 19:58
Reported
2024-11-28 20:01
Platform
win10v2004-20241007-en
Max time kernel
136s
Max time network
150s
Command Line
Signatures
Orcus
Orcus family
Disables Task Manager via registry modification
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\segseg.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Checks installed software on the system
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | api.ipify.org | N/A | N/A |
| N/A | api.ipify.org | N/A | 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\segseg.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\AUDIODG.EXE | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\AUDIODG.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 |
| 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 |
| 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 SetWindowsHookEx
| 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 4932 wrote to memory of 3380 | N/A | C:\Users\Admin\AppData\Local\Temp\segseg.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 4932 wrote to memory of 3380 | N/A | C:\Users\Admin\AppData\Local\Temp\segseg.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 4932 wrote to memory of 3380 | N/A | C:\Users\Admin\AppData\Local\Temp\segseg.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\segseg.exe
"C:\Users\Admin\AppData\Local\Temp\segseg.exe"
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"
C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x4c0 0x508
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 105.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| N/A | 127.0.0.1:7000 | tcp | |
| US | 8.8.8.8:53 | email-hitting.gl.at.ply.gg | udp |
| US | 147.185.221.22:63341 | email-hitting.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 22.221.185.147.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | api.ipify.org | udp |
| US | 172.67.74.152:443 | api.ipify.org | tcp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 152.74.67.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 4.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
Files
memory/4932-0-0x00000000748AE000-0x00000000748AF000-memory.dmp
memory/4932-1-0x0000000000E60000-0x0000000000F38000-memory.dmp
memory/4932-2-0x0000000005890000-0x000000000589A000-memory.dmp
memory/4932-3-0x00000000748A0000-0x0000000075050000-memory.dmp
memory/4932-4-0x0000000005EF0000-0x0000000006494000-memory.dmp
memory/4932-5-0x0000000005DA0000-0x0000000005E32000-memory.dmp
memory/4932-6-0x0000000005D10000-0x0000000005D5C000-memory.dmp
memory/4932-7-0x00000000064A0000-0x0000000006506000-memory.dmp
memory/4932-10-0x0000000006840000-0x000000000688E000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 0994b37669146a1384224c18299c054f |
| SHA1 | cf9e3baf60db3b3813a87eaf8d1281105adab7f4 |
| SHA256 | a83d873568dd41be58d05aa7085684f05793bde5d5c28a1b2070e3a5f16bbfb8 |
| SHA512 | 536162a78038e954bab16dd79284a71fa05faf69476a4cf7579c40b2446fe93b85889e00ee98c4087954bb498ae437634010b81b091a18c69488b6a68adf69da |
memory/3380-22-0x00000000748A0000-0x0000000075050000-memory.dmp
memory/3380-23-0x00000000748A0000-0x0000000075050000-memory.dmp
memory/3380-24-0x0000000005EB0000-0x0000000006072000-memory.dmp
memory/3380-25-0x0000000005E30000-0x0000000005E40000-memory.dmp
memory/3380-26-0x0000000006560000-0x000000000656A000-memory.dmp
memory/4932-27-0x00000000748A0000-0x0000000075050000-memory.dmp
memory/3380-28-0x00000000748A0000-0x0000000075050000-memory.dmp
memory/3380-31-0x0000000006DB0000-0x0000000006DBC000-memory.dmp
memory/3380-32-0x0000000007B30000-0x0000000008148000-memory.dmp
memory/3380-33-0x0000000006E00000-0x0000000006E12000-memory.dmp
memory/3380-34-0x0000000006E60000-0x0000000006E9C000-memory.dmp
memory/3380-35-0x0000000006EA0000-0x0000000006EEC000-memory.dmp
memory/3380-36-0x0000000007640000-0x000000000774A000-memory.dmp
memory/3380-37-0x0000000008680000-0x0000000008BAC000-memory.dmp
memory/3380-40-0x0000000005D70000-0x0000000005D78000-memory.dmp
memory/3380-44-0x0000000007A80000-0x0000000007AD0000-memory.dmp
memory/3380-45-0x00000000748A0000-0x0000000075050000-memory.dmp
memory/3380-46-0x00000000748A0000-0x0000000075050000-memory.dmp
memory/3380-47-0x0000000008580000-0x000000000862A000-memory.dmp
memory/3380-50-0x0000000008EA0000-0x000000000901A000-memory.dmp
memory/3380-51-0x000000000A8C0000-0x000000000A944000-memory.dmp