Analysis Overview
SHA256
a44c2a6d65bb122b450d52b51af726ebd349020048ffb9225be9cefe88510080
Threat Level: Likely malicious
The file a44c2a6d65bb122b450d52b51af726ebd349020048ffb9225be9cefe88510080N was found to be: Likely malicious.
Malicious Activity Summary
Sets file to hidden
Executes dropped EXE
Checks computer location settings
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
Suspicious use of WriteProcessMemory
Checks processor information in registry
Views/modifies file attributes
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-10 01:40
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
2024-11-10 01:40
Reported
2024-11-10 01:42
Platform
win7-20240903-en
Max time kernel
110s
Max time network
93s
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\iuyhost.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 |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\Debug\iuyhost.exe | C:\Users\Admin\AppData\Local\Temp\a44c2a6d65bb122b450d52b51af726ebd349020048ffb9225be9cefe88510080N.exe | N/A |
| File opened for modification | C:\Windows\Debug\iuyhost.exe | C:\Users\Admin\AppData\Local\Temp\a44c2a6d65bb122b450d52b51af726ebd349020048ffb9225be9cefe88510080N.exe | N/A |
| File opened for modification | C:\Windows\Debug\iuyhost.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\a44c2a6d65bb122b450d52b51af726ebd349020048ffb9225be9cefe88510080N.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\iuyhost.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\iuyhost.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Windows\Debug\iuyhost.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\a44c2a6d65bb122b450d52b51af726ebd349020048ffb9225be9cefe88510080N.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\a44c2a6d65bb122b450d52b51af726ebd349020048ffb9225be9cefe88510080N.exe
"C:\Users\Admin\AppData\Local\Temp\a44c2a6d65bb122b450d52b51af726ebd349020048ffb9225be9cefe88510080N.exe"
C:\Windows\SysWOW64\attrib.exe
attrib +a +s +h +r C:\Windows\Debug\iuyhost.exe
C:\Windows\Debug\iuyhost.exe
C:\Windows\Debug\iuyhost.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\A44C2A~1.EXE > nul
Network
| Country | Destination | Domain | Proto |
| 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 | akvZkdwvgU.nnnn.eu.org | udp |
| US | 8.8.8.8:53 | Qdk1bQ3Q.nnnn.eu.org | udp |
Files
memory/2872-0-0x0000000000400000-0x0000000000416000-memory.dmp
C:\Windows\debug\iuyhost.exe
| MD5 | cb4a32ad2be645dd5b3e630b5bb349db |
| SHA1 | 2a756d2f5ea559fc5f877faa6595f04fad5822e7 |
| SHA256 | e62a30f567b69c61a7c0617f14aa1d32059c1e1cb2c52db283b52d20e5e3e5ce |
| SHA512 | 242f4e39a627df356c19a56bd82461ace123af16cfa7929d7d64471290fea2b26afb2da8094da2e44724e8b6d37229ad50100e4989f8527657c2379f5ca845f0 |
memory/2156-5-0x0000000000400000-0x0000000000416000-memory.dmp
memory/2872-6-0x0000000000400000-0x0000000000416000-memory.dmp
memory/2156-7-0x0000000000400000-0x0000000000416000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-10 01:40
Reported
2024-11-10 01:42
Platform
win10v2004-20241007-en
Max time kernel
111s
Max time network
94s
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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\a44c2a6d65bb122b450d52b51af726ebd349020048ffb9225be9cefe88510080N.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Debug\soohost.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\soohost.exe | C:\Users\Admin\AppData\Local\Temp\a44c2a6d65bb122b450d52b51af726ebd349020048ffb9225be9cefe88510080N.exe | N/A |
| File opened for modification | C:\Windows\Debug\soohost.exe | C:\Users\Admin\AppData\Local\Temp\a44c2a6d65bb122b450d52b51af726ebd349020048ffb9225be9cefe88510080N.exe | N/A |
| File opened for modification | C:\Windows\Debug\soohost.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\a44c2a6d65bb122b450d52b51af726ebd349020048ffb9225be9cefe88510080N.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Debug\soohost.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\soohost.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Windows\Debug\soohost.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\a44c2a6d65bb122b450d52b51af726ebd349020048ffb9225be9cefe88510080N.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\a44c2a6d65bb122b450d52b51af726ebd349020048ffb9225be9cefe88510080N.exe
"C:\Users\Admin\AppData\Local\Temp\a44c2a6d65bb122b450d52b51af726ebd349020048ffb9225be9cefe88510080N.exe"
C:\Windows\SysWOW64\attrib.exe
attrib +a +s +h +r C:\Windows\Debug\soohost.exe
C:\Windows\Debug\soohost.exe
C:\Windows\Debug\soohost.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\A44C2A~1.EXE > nul
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 58.55.71.13.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 | 96.46.235.103.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | d64g6S9i0J.nnnn.eu.org | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | DnFrOwcpjX.nnnn.eu.org | udp |
Files
memory/3260-0-0x0000000000400000-0x0000000000416000-memory.dmp
C:\Windows\debug\soohost.exe
| MD5 | c6bb83ce668814fae830eb0440684fa0 |
| SHA1 | b6a236953010237a2b6422ed1d3bd453f528233f |
| SHA256 | 6f39c6ff6ac2bfaaf190e678af5d643a6a4746250b28d7260138d76957918384 |
| SHA512 | f7e50ed92a6e44e9a0e800a2a478e8fd6720f070cf9e038c3ac68cde72a1bb42e47c4ce5c688de127b7f355bc633d2bdc67599cd93952a341171760f0abdd822 |
memory/3260-5-0x0000000000400000-0x0000000000416000-memory.dmp
memory/4552-6-0x0000000000400000-0x0000000000416000-memory.dmp