Analysis Overview
SHA256
c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9
Threat Level: Shows suspicious behavior
The file c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9 was found to be: Shows suspicious behavior.
Malicious Activity Summary
Checks computer location settings
Deletes itself
Executes dropped EXE
Indicator Removal: File Deletion
UPX packed file
Drops file in Windows directory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Unsigned PE
Checks processor information in registry
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-13 02:37
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-13 02:37
Reported
2024-11-13 02:40
Platform
win7-20241023-en
Max time kernel
140s
Max time network
124s
Command Line
Signatures
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Debug\rwmhost.exe | N/A |
Indicator Removal: File Deletion
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\Debug\rwmhost.exe | C:\Users\Admin\AppData\Local\Temp\c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9.exe | N/A |
| File created | C:\Windows\Debug\rwmhost.exe | C:\Users\Admin\AppData\Local\Temp\c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9.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\c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Debug\rwmhost.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Windows\Debug\rwmhost.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Windows\Debug\rwmhost.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2244 wrote to memory of 2784 | N/A | C:\Users\Admin\AppData\Local\Temp\c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2244 wrote to memory of 2784 | N/A | C:\Users\Admin\AppData\Local\Temp\c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2244 wrote to memory of 2784 | N/A | C:\Users\Admin\AppData\Local\Temp\c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2244 wrote to memory of 2784 | N/A | C:\Users\Admin\AppData\Local\Temp\c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9.exe
"C:\Users\Admin\AppData\Local\Temp\c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9.exe"
C:\Windows\Debug\rwmhost.exe
C:\Windows\Debug\rwmhost.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\C5F307~1.EXE > nul
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | www.baidu.com | udp |
| HK | 103.235.46.96:80 | www.baidu.com | tcp |
| N/A | 192.168.6.136:8000 | tcp | |
| N/A | 192.168.6.136:8000 | tcp |
Files
memory/2244-0-0x0000000010000000-0x000000001000E000-memory.dmp
memory/2244-5-0x0000000010000000-0x000000001000E000-memory.dmp
C:\Windows\debug\rwmhost.exe
| MD5 | 4b097b4931b4412c01671386bef10f33 |
| SHA1 | 1353d125b4e9f788b1535b92a095ded3cb94de31 |
| SHA256 | a3309e8fcb57e973456b4d173fdc2a088f9b510100a3f1697b2b74ce28ab1218 |
| SHA512 | 74a4e776d46e1551826873e145a7de467be7b095a79678619d0dd1f95205ce8dc56905297a75e6000dac61326643c0c96ddecc23de442a37ed7641f012cd4db9 |
memory/2948-11-0x0000000010000000-0x000000001000E000-memory.dmp
memory/2948-12-0x0000000010000000-0x000000001000E000-memory.dmp
memory/2948-14-0x0000000010000000-0x000000001000E000-memory.dmp
memory/2948-16-0x0000000010000000-0x000000001000E000-memory.dmp
memory/2948-17-0x0000000010000000-0x000000001000E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-13 02:37
Reported
2024-11-13 02:40
Platform
win10v2004-20241007-en
Max time kernel
141s
Max time network
135s
Command Line
Signatures
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Debug\bqchost.exe | N/A |
Indicator Removal: File Deletion
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\Debug\bqchost.exe | C:\Users\Admin\AppData\Local\Temp\c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9.exe | N/A |
| File opened for modification | C:\Windows\Debug\bqchost.exe | C:\Users\Admin\AppData\Local\Temp\c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9.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\c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Debug\bqchost.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Windows\Debug\bqchost.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Windows\Debug\bqchost.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1888 wrote to memory of 3296 | N/A | C:\Users\Admin\AppData\Local\Temp\c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1888 wrote to memory of 3296 | N/A | C:\Users\Admin\AppData\Local\Temp\c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1888 wrote to memory of 3296 | N/A | C:\Users\Admin\AppData\Local\Temp\c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9.exe
"C:\Users\Admin\AppData\Local\Temp\c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9.exe"
C:\Windows\Debug\bqchost.exe
C:\Windows\Debug\bqchost.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\C5F307~1.EXE > nul
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.baidu.com | udp |
| HK | 103.235.46.96:80 | www.baidu.com | tcp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 96.46.235.103.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| N/A | 192.168.6.136:8000 | tcp | |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| N/A | 192.168.6.136:8000 | tcp |
Files
memory/1888-0-0x0000000010000000-0x000000001000E000-memory.dmp
memory/1888-3-0x0000000010000000-0x000000001000E000-memory.dmp
C:\Windows\Debug\bqchost.exe
| MD5 | 4b097b4931b4412c01671386bef10f33 |
| SHA1 | 1353d125b4e9f788b1535b92a095ded3cb94de31 |
| SHA256 | a3309e8fcb57e973456b4d173fdc2a088f9b510100a3f1697b2b74ce28ab1218 |
| SHA512 | 74a4e776d46e1551826873e145a7de467be7b095a79678619d0dd1f95205ce8dc56905297a75e6000dac61326643c0c96ddecc23de442a37ed7641f012cd4db9 |
memory/4192-11-0x0000000010000000-0x000000001000E000-memory.dmp
memory/4192-12-0x0000000010000000-0x000000001000E000-memory.dmp
memory/1888-13-0x0000000010000000-0x000000001000E000-memory.dmp
memory/4192-15-0x0000000010000000-0x000000001000E000-memory.dmp
memory/4192-17-0x0000000010000000-0x000000001000E000-memory.dmp
memory/4192-18-0x0000000010000000-0x000000001000E000-memory.dmp