Analysis Overview
SHA256
f9aefb1b37168ea33f607f053bbc7b7d2113ca98260b5be9627cd77cbe560f58
Threat Level: Likely malicious
The file f9aefb1b37168ea33f607f053bbc7b7d2113ca98260b5be9627cd77cbe560f58N was found to be: Likely malicious.
Malicious Activity Summary
Sets file to hidden
Executes dropped EXE
Deletes itself
Checks computer location settings
Indicator Removal: File Deletion
UPX packed file
Drops file in Windows directory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious use of WriteProcessMemory
Views/modifies file attributes
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-10-31 04:29
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 |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-10-31 04:29
Reported
2024-10-31 04:31
Platform
win7-20240903-en
Max time kernel
120s
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 |
| 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\iuyhost.exe | C:\Users\Admin\AppData\Local\Temp\f9aefb1b37168ea33f607f053bbc7b7d2113ca98260b5be9627cd77cbe560f58N.exe | N/A |
| File opened for modification | C:\Windows\Debug\iuyhost.exe | C:\Windows\SysWOW64\attrib.exe | N/A |
| File created | C:\Windows\Debug\iuyhost.exe | C:\Users\Admin\AppData\Local\Temp\f9aefb1b37168ea33f607f053bbc7b7d2113ca98260b5be9627cd77cbe560f58N.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:\Windows\Debug\iuyhost.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\f9aefb1b37168ea33f607f053bbc7b7d2113ca98260b5be9627cd77cbe560f58N.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\attrib.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\f9aefb1b37168ea33f607f053bbc7b7d2113ca98260b5be9627cd77cbe560f58N.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\f9aefb1b37168ea33f607f053bbc7b7d2113ca98260b5be9627cd77cbe560f58N.exe
"C:\Users\Admin\AppData\Local\Temp\f9aefb1b37168ea33f607f053bbc7b7d2113ca98260b5be9627cd77cbe560f58N.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\F9AEFB~1.EXE > nul
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | KT7dOs4Hoe.nnnn.eu.org | udp |
| US | 8.8.8.8:53 | u9oo9q4PYs.nnnn.eu.org | udp |
| US | 8.8.8.8:53 | UpzzQoXXHa.nnnn.eu.org | udp |
| US | 8.8.8.8:53 | 4VgI191o.nnnn.eu.org | udp |
Files
memory/328-0-0x0000000000400000-0x0000000000414000-memory.dmp
C:\Windows\Debug\iuyhost.exe
| MD5 | 2aa6f27b55fadf142b533db785a22647 |
| SHA1 | 1921dcd93a69896eb466dda650bd52402be8e815 |
| SHA256 | 942df5db5279dd708a7b777e2ff3ee6c746913e5871b825dd9b209db1cc338ad |
| SHA512 | f05cab0a08f82be1040c2732d982e2d186f8be86a710b7decd950a0e5c710b6f755e954e231a8528e2ff85e15f8f50b71201959bc22aa7827a7070e2acab9e0c |
memory/328-6-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1588-7-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1588-10-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1588-13-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1588-16-0x0000000000400000-0x0000000000414000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-10-31 04:29
Reported
2024-10-31 04:31
Platform
win10v2004-20241007-en
Max time kernel
111s
Max time network
106s
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\f9aefb1b37168ea33f607f053bbc7b7d2113ca98260b5be9627cd77cbe560f58N.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 |
| 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\f9aefb1b37168ea33f607f053bbc7b7d2113ca98260b5be9627cd77cbe560f58N.exe | N/A |
| File opened for modification | C:\Windows\Debug\mewhost.exe | C:\Users\Admin\AppData\Local\Temp\f9aefb1b37168ea33f607f053bbc7b7d2113ca98260b5be9627cd77cbe560f58N.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\f9aefb1b37168ea33f607f053bbc7b7d2113ca98260b5be9627cd77cbe560f58N.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 |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\f9aefb1b37168ea33f607f053bbc7b7d2113ca98260b5be9627cd77cbe560f58N.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\f9aefb1b37168ea33f607f053bbc7b7d2113ca98260b5be9627cd77cbe560f58N.exe
"C:\Users\Admin\AppData\Local\Temp\f9aefb1b37168ea33f607f053bbc7b7d2113ca98260b5be9627cd77cbe560f58N.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\F9AEFB~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 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 150.171.28.10:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0aD03C1JZ.nnnn.eu.org | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | amuod92n.nnnn.eu.org | udp |
| US | 8.8.8.8:53 | 212.20.149.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 69.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | S5M6e7Gm1.nnnn.eu.org | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | k8nYrc7sWj.nnnn.eu.org | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 10.27.171.150.in-addr.arpa | udp |
Files
memory/3428-0-0x0000000000400000-0x0000000000414000-memory.dmp
C:\Windows\debug\mewhost.exe
| MD5 | fbfbeeae81c4dc2c2ef89aa2421da792 |
| SHA1 | 9face13a81941a1f5129db9c710e26bfc3cfddff |
| SHA256 | b714a337fcaa499133f82b0dcb1a2767caf5e739f0bdff04dc73d6cfe556265b |
| SHA512 | f765a86efd42669e794157c1ded6658fa1f27c5e9220b22b883bffd01ecd1939a720d7244f6ff9ef6b2cc2b139348a8738ff7d7f4b56dc40e3260288a8bfe096 |
memory/3428-5-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4760-6-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4760-9-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4760-12-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4760-15-0x0000000000400000-0x0000000000414000-memory.dmp