Analysis Overview
SHA256
ce241023e11491d0faae22ad7fda8db3a8ae6d70b9421234e7ff371d1e42c410
Threat Level: Known bad
The file esg.exe was found to be: Known bad.
Malicious Activity Summary
Orcus
Orcus family
Executes dropped EXE
Checks computer location settings
Loads dropped DLL
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SendNotifyMessage
Suspicious use of FindShellTrayWindow
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-28 20:00
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 20:00
Reported
2024-11-28 20:02
Platform
win7-20240903-en
Max time kernel
148s
Max time network
139s
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\esg.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\esg.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
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 2868 wrote to memory of 2576 | N/A | C:\Users\Admin\AppData\Local\Temp\esg.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2868 wrote to memory of 2576 | N/A | C:\Users\Admin\AppData\Local\Temp\esg.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2868 wrote to memory of 2576 | N/A | C:\Users\Admin\AppData\Local\Temp\esg.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2868 wrote to memory of 2576 | N/A | C:\Users\Admin\AppData\Local\Temp\esg.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\esg.exe
"C:\Users\Admin\AppData\Local\Temp\esg.exe"
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"
Network
| Country | Destination | Domain | Proto |
| DE | 87.177.68.221:7000 | tcp | |
| N/A | 127.0.0.1:7000 | tcp | |
| DE | 87.177.68.221:7000 | tcp | |
| N/A | 127.0.0.1:7000 | tcp | |
| DE | 87.177.68.221:7000 | tcp | |
| N/A | 127.0.0.1:7000 | tcp | |
| DE | 87.177.68.221:7000 | tcp | |
| N/A | 127.0.0.1:7000 | tcp | |
| DE | 87.177.68.221:7000 | tcp | |
| N/A | 127.0.0.1:7000 | tcp | |
| DE | 87.177.68.221:7000 | tcp | |
| N/A | 127.0.0.1:7000 | tcp | |
| DE | 87.177.68.221:7000 | tcp | |
| N/A | 127.0.0.1:7000 | tcp |
Files
memory/2868-0-0x00000000740DE000-0x00000000740DF000-memory.dmp
memory/2868-1-0x0000000000A00000-0x0000000000AD8000-memory.dmp
memory/2868-2-0x00000000006E0000-0x00000000006EA000-memory.dmp
memory/2868-3-0x00000000740D0000-0x00000000747BE000-memory.dmp
memory/2868-4-0x00000000042D0000-0x000000000431C000-memory.dmp
memory/2868-7-0x0000000004800000-0x000000000484E000-memory.dmp
\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 1ef3aeb3921f543f6b951d32a8f992e4 |
| SHA1 | 5c3172bb2490ecc3e572cd5b5fee8e6fc3758bf9 |
| SHA256 | ce241023e11491d0faae22ad7fda8db3a8ae6d70b9421234e7ff371d1e42c410 |
| SHA512 | 60c65eefe018d3171309c8ba13e2d4ced013f4bbfe456db3095d662136c6e05fa28e5601493dd4a23f4ef82c4ebc87cad248bead43a8f43b7ae4adaf535638b5 |
memory/2868-14-0x00000000740D0000-0x00000000747BE000-memory.dmp
memory/2576-16-0x00000000740D0000-0x00000000747BE000-memory.dmp
memory/2576-15-0x0000000000370000-0x0000000000448000-memory.dmp
memory/2576-17-0x00000000740D0000-0x00000000747BE000-memory.dmp
memory/2576-18-0x0000000002190000-0x00000000021A0000-memory.dmp
memory/2576-19-0x00000000740D0000-0x00000000747BE000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-28 20:00
Reported
2024-11-28 20:02
Platform
win10v2004-20241007-en
Max time kernel
148s
Max time network
151s
Command Line
Signatures
Orcus
Orcus family
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\esg.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 |
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\esg.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
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 396 wrote to memory of 4692 | N/A | C:\Users\Admin\AppData\Local\Temp\esg.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 396 wrote to memory of 4692 | N/A | C:\Users\Admin\AppData\Local\Temp\esg.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 396 wrote to memory of 4692 | N/A | C:\Users\Admin\AppData\Local\Temp\esg.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\esg.exe
"C:\Users\Admin\AppData\Local\Temp\esg.exe"
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"
Network
| Country | Destination | Domain | Proto |
| DE | 87.177.68.221:7000 | tcp | |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| N/A | 127.0.0.1:7000 | tcp | |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| DE | 87.177.68.221:7000 | tcp | |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 92.12.20.2.in-addr.arpa | udp |
| N/A | 127.0.0.1:7000 | tcp | |
| DE | 87.177.68.221:7000 | tcp | |
| US | 8.8.8.8:53 | 69.209.201.84.in-addr.arpa | udp |
| N/A | 127.0.0.1:7000 | tcp | |
| DE | 87.177.68.221:7000 | tcp | |
| N/A | 127.0.0.1:7000 | tcp | |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| DE | 87.177.68.221:7000 | tcp | |
| N/A | 127.0.0.1:7000 | tcp | |
| DE | 87.177.68.221:7000 | tcp | |
| N/A | 127.0.0.1:7000 | tcp |
Files
memory/396-0-0x00000000747EE000-0x00000000747EF000-memory.dmp
memory/396-1-0x0000000000B30000-0x0000000000C08000-memory.dmp
memory/396-2-0x0000000003090000-0x000000000309A000-memory.dmp
memory/396-3-0x00000000747E0000-0x0000000074F90000-memory.dmp
memory/396-4-0x0000000005D00000-0x00000000062A4000-memory.dmp
memory/396-5-0x0000000005A70000-0x0000000005B02000-memory.dmp
memory/396-6-0x00000000059E0000-0x0000000005A2C000-memory.dmp
memory/396-7-0x0000000005B80000-0x0000000005BE6000-memory.dmp
memory/396-10-0x0000000006510000-0x000000000655E000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 1ef3aeb3921f543f6b951d32a8f992e4 |
| SHA1 | 5c3172bb2490ecc3e572cd5b5fee8e6fc3758bf9 |
| SHA256 | ce241023e11491d0faae22ad7fda8db3a8ae6d70b9421234e7ff371d1e42c410 |
| SHA512 | 60c65eefe018d3171309c8ba13e2d4ced013f4bbfe456db3095d662136c6e05fa28e5601493dd4a23f4ef82c4ebc87cad248bead43a8f43b7ae4adaf535638b5 |
memory/4692-22-0x00000000747E0000-0x0000000074F90000-memory.dmp
memory/4692-23-0x00000000747E0000-0x0000000074F90000-memory.dmp
memory/4692-24-0x0000000006210000-0x00000000063D2000-memory.dmp
memory/4692-25-0x00000000061A0000-0x00000000061B0000-memory.dmp
memory/4692-26-0x00000000068B0000-0x00000000068BA000-memory.dmp
memory/396-27-0x00000000747E0000-0x0000000074F90000-memory.dmp
memory/4692-28-0x00000000747E0000-0x0000000074F90000-memory.dmp