Analysis Overview
SHA256
ce241023e11491d0faae22ad7fda8db3a8ae6d70b9421234e7ff371d1e42c410
Threat Level: Known bad
The file esg.exe was found to be: Known bad.
Malicious Activity Summary
Orcus family
Orcus
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
Unsigned PE
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious use of SendNotifyMessage
Suspicious behavior: EnumeratesProcesses
Suspicious use of FindShellTrayWindow
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-28 19:56
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 19:56
Reported
2024-11-28 19:58
Platform
win7-20241023-en
Max time kernel
149s
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\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 2836 wrote to memory of 2800 | N/A | C:\Users\Admin\AppData\Local\Temp\esg.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2836 wrote to memory of 2800 | N/A | C:\Users\Admin\AppData\Local\Temp\esg.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2836 wrote to memory of 2800 | N/A | C:\Users\Admin\AppData\Local\Temp\esg.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 2836 wrote to memory of 2800 | 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 | |
| DE | 87.177.68.221:7000 | tcp | |
| DE | 87.177.68.221:7000 | tcp | |
| DE | 87.177.68.221:7000 | tcp | |
| DE | 87.177.68.221:7000 | tcp | |
| N/A | 127.0.0.1:7000 | tcp | |
| N/A | 127.0.0.1:7000 | tcp | |
| N/A | 127.0.0.1:7000 | tcp | |
| N/A | 127.0.0.1:7000 | 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/2836-0-0x00000000743FE000-0x00000000743FF000-memory.dmp
memory/2836-1-0x0000000000CC0000-0x0000000000D98000-memory.dmp
memory/2836-2-0x00000000003B0000-0x00000000003BA000-memory.dmp
memory/2836-3-0x00000000743F0000-0x0000000074ADE000-memory.dmp
memory/2836-4-0x0000000000570000-0x00000000005BC000-memory.dmp
memory/2836-7-0x0000000000A60000-0x0000000000AAE000-memory.dmp
memory/2800-14-0x0000000001390000-0x0000000001468000-memory.dmp
memory/2800-16-0x00000000743F0000-0x0000000074ADE000-memory.dmp
memory/2800-17-0x00000000743F0000-0x0000000074ADE000-memory.dmp
memory/2836-15-0x00000000743F0000-0x0000000074ADE000-memory.dmp
memory/2800-18-0x0000000000B90000-0x0000000000BA0000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 1ef3aeb3921f543f6b951d32a8f992e4 |
| SHA1 | 5c3172bb2490ecc3e572cd5b5fee8e6fc3758bf9 |
| SHA256 | ce241023e11491d0faae22ad7fda8db3a8ae6d70b9421234e7ff371d1e42c410 |
| SHA512 | 60c65eefe018d3171309c8ba13e2d4ced013f4bbfe456db3095d662136c6e05fa28e5601493dd4a23f4ef82c4ebc87cad248bead43a8f43b7ae4adaf535638b5 |
memory/2800-19-0x00000000743F0000-0x0000000074ADE000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-28 19:56
Reported
2024-11-28 19:58
Platform
win10v2004-20241007-en
Max time kernel
142s
Max time network
137s
Command Line
Signatures
Orcus
Orcus family
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\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 4320 wrote to memory of 3660 | N/A | C:\Users\Admin\AppData\Local\Temp\esg.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 4320 wrote to memory of 3660 | N/A | C:\Users\Admin\AppData\Local\Temp\esg.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe |
| PID 4320 wrote to memory of 3660 | 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 |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| DE | 87.177.68.221:7000 | tcp | |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 69.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| N/A | 127.0.0.1:7000 | tcp | |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| DE | 87.177.68.221:7000 | tcp | |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.209.201.84.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 | 101.209.201.84.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 | 21.236.111.52.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/4320-0-0x0000000074F1E000-0x0000000074F1F000-memory.dmp
memory/4320-1-0x0000000000850000-0x0000000000928000-memory.dmp
memory/4320-2-0x0000000005280000-0x000000000528A000-memory.dmp
memory/4320-3-0x0000000074F10000-0x00000000756C0000-memory.dmp
memory/4320-4-0x0000000005A70000-0x0000000006014000-memory.dmp
memory/4320-5-0x00000000057A0000-0x0000000005832000-memory.dmp
memory/4320-6-0x0000000005700000-0x000000000574C000-memory.dmp
memory/4320-7-0x00000000058B0000-0x0000000005916000-memory.dmp
memory/4320-10-0x0000000006230000-0x000000000627E000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
| MD5 | 1ef3aeb3921f543f6b951d32a8f992e4 |
| SHA1 | 5c3172bb2490ecc3e572cd5b5fee8e6fc3758bf9 |
| SHA256 | ce241023e11491d0faae22ad7fda8db3a8ae6d70b9421234e7ff371d1e42c410 |
| SHA512 | 60c65eefe018d3171309c8ba13e2d4ced013f4bbfe456db3095d662136c6e05fa28e5601493dd4a23f4ef82c4ebc87cad248bead43a8f43b7ae4adaf535638b5 |
memory/4320-23-0x0000000074F10000-0x00000000756C0000-memory.dmp
memory/3660-22-0x0000000074F10000-0x00000000756C0000-memory.dmp
memory/3660-24-0x0000000074F10000-0x00000000756C0000-memory.dmp
memory/3660-26-0x00000000057B0000-0x00000000057C0000-memory.dmp
memory/3660-25-0x0000000006160000-0x0000000006322000-memory.dmp
memory/3660-27-0x00000000067E0000-0x00000000067EA000-memory.dmp
memory/3660-28-0x0000000074F10000-0x00000000756C0000-memory.dmp