Analysis Overview
SHA256
89151cd457e0d98eab204a829e2637757d23935b9dba42cdcb0bfa46ebe57b2f
Threat Level: Likely malicious
The file 89151cd457e0d98eab204a829e2637757d23935b9dba42cdcb0bfa46ebe57b2f.exe was found to be: Likely malicious.
Malicious Activity Summary
Sets file to hidden
Checks computer location settings
Executes dropped EXE
Deletes itself
Indicator Removal: File Deletion
UPX packed file
Drops file in Windows directory
System Location Discovery: System Language Discovery
Unsigned PE
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Views/modifies file attributes
Checks processor information in registry
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-13 20:33
Signatures
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-13 20:33
Reported
2024-11-13 20:35
Platform
win7-20240903-en
Max time kernel
117s
Max time network
118s
Command Line
Signatures
Sets file to hidden
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
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 |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\Debug\rwmhost.exe | C:\Users\Admin\AppData\Local\Temp\89151cd457e0d98eab204a829e2637757d23935b9dba42cdcb0bfa46ebe57b2f.exe | N/A |
| File opened for modification | C:\Windows\Debug\rwmhost.exe | C:\Users\Admin\AppData\Local\Temp\89151cd457e0d98eab204a829e2637757d23935b9dba42cdcb0bfa46ebe57b2f.exe | N/A |
| File opened for modification | C:\Windows\Debug\rwmhost.exe | C:\Windows\SysWOW64\attrib.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\89151cd457e0d98eab204a829e2637757d23935b9dba42cdcb0bfa46ebe57b2f.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\attrib.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\89151cd457e0d98eab204a829e2637757d23935b9dba42cdcb0bfa46ebe57b2f.exe | N/A |
Suspicious use of WriteProcessMemory
Views/modifies file attributes
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\89151cd457e0d98eab204a829e2637757d23935b9dba42cdcb0bfa46ebe57b2f.exe
"C:\Users\Admin\AppData\Local\Temp\89151cd457e0d98eab204a829e2637757d23935b9dba42cdcb0bfa46ebe57b2f.exe"
C:\Windows\SysWOW64\attrib.exe
attrib +a +s +h +r C:\Windows\Debug\rwmhost.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\89151C~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 |
| US | 8.8.8.8:53 | Y9x3nwwa11.nnnn.eu.org | udp |
| US | 8.8.8.8:53 | 7p8FYQQikF.nnnn.eu.org | udp |
Files
memory/2980-0-0x0000000000400000-0x0000000000426000-memory.dmp
C:\Windows\Debug\rwmhost.exe
| MD5 | f441cc684b8a0c60591098a5925446a9 |
| SHA1 | 1dbd8e9260e4432d192d53a0716f8e65afd4366f |
| SHA256 | b9172f1fa5d884f612991881959f4843801465f2dada71593bd0aff376950252 |
| SHA512 | 7f8637f4b799d070fe80f52bdd9a0c920f728c7fad398e51da56b576703332ad74a542faa08960d33e8d27c1114c0675f2ab0bc59beb5363ee99ec6d53806f78 |
memory/2980-5-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1956-6-0x0000000000400000-0x0000000000426000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-13 20:33
Reported
2024-11-13 20:35
Platform
win10v2004-20241007-en
Max time kernel
111s
Max time network
95s
Command Line
Signatures
Sets file to hidden
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\89151cd457e0d98eab204a829e2637757d23935b9dba42cdcb0bfa46ebe57b2f.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Debug\mewhost.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 |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\Debug\mewhost.exe | C:\Users\Admin\AppData\Local\Temp\89151cd457e0d98eab204a829e2637757d23935b9dba42cdcb0bfa46ebe57b2f.exe | N/A |
| File opened for modification | C:\Windows\Debug\mewhost.exe | C:\Users\Admin\AppData\Local\Temp\89151cd457e0d98eab204a829e2637757d23935b9dba42cdcb0bfa46ebe57b2f.exe | N/A |
| File opened for modification | C:\Windows\Debug\mewhost.exe | C:\Windows\SysWOW64\attrib.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\89151cd457e0d98eab204a829e2637757d23935b9dba42cdcb0bfa46ebe57b2f.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Debug\mewhost.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\attrib.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\mewhost.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Windows\Debug\mewhost.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\89151cd457e0d98eab204a829e2637757d23935b9dba42cdcb0bfa46ebe57b2f.exe | N/A |
Suspicious use of WriteProcessMemory
Views/modifies file attributes
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\89151cd457e0d98eab204a829e2637757d23935b9dba42cdcb0bfa46ebe57b2f.exe
"C:\Users\Admin\AppData\Local\Temp\89151cd457e0d98eab204a829e2637757d23935b9dba42cdcb0bfa46ebe57b2f.exe"
C:\Windows\SysWOW64\attrib.exe
attrib +a +s +h +r C:\Windows\Debug\mewhost.exe
C:\Windows\Debug\mewhost.exe
C:\Windows\Debug\mewhost.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\89151C~1.EXE > nul
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.baidu.com | udp |
| HK | 103.235.47.188:80 | www.baidu.com | tcp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 188.47.235.103.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 102.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | Y9x3nwwa11.nnnn.eu.org | udp |
| US | 8.8.8.8:53 | 7p8FYQQikF.nnnn.eu.org | udp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
Files
memory/4980-0-0x0000000000400000-0x0000000000426000-memory.dmp
C:\Windows\debug\mewhost.exe
| MD5 | f441cc684b8a0c60591098a5925446a9 |
| SHA1 | 1dbd8e9260e4432d192d53a0716f8e65afd4366f |
| SHA256 | b9172f1fa5d884f612991881959f4843801465f2dada71593bd0aff376950252 |
| SHA512 | 7f8637f4b799d070fe80f52bdd9a0c920f728c7fad398e51da56b576703332ad74a542faa08960d33e8d27c1114c0675f2ab0bc59beb5363ee99ec6d53806f78 |
memory/4980-5-0x0000000000400000-0x0000000000426000-memory.dmp
memory/3428-6-0x0000000000400000-0x0000000000426000-memory.dmp