Analysis Overview
SHA256
745d1a7a5785501ecb9d9cde2a77f307bc601e30af140b44af9fec041ae81766
Threat Level: Known bad
The file 745d1a7a5785501ecb9d9cde2a77f307bc601e30af140b44af9fec041ae81766 was found to be: Known bad.
Malicious Activity Summary
Floxif, Floodfix
Detects Floxif payload
Blocklisted process makes network request
Event Triggered Execution: AppInit DLLs
Loads dropped DLL
ACProtect 1.3x - 1.4x DLL software
UPX packed file
Enumerates connected drives
Drops file in Program Files directory
Unsigned PE
System Location Discovery: System Language Discovery
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-09-14 22:29
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-09-14 22:29
Reported
2024-09-14 22:31
Platform
win7-20240729-en
Max time kernel
117s
Max time network
118s
Command Line
Signatures
Floxif, Floodfix
Detects Floxif payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
ACProtect 1.3x - 1.4x DLL software
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
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 |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\e: | C:\Windows\SysWOW64\rundll32.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files\Common Files\System\symsrv.dll | C:\Windows\SysWOW64\rundll32.exe | N/A |
| File created | \??\c:\program files\common files\system\symsrv.dll.000 | C:\Windows\SysWOW64\rundll32.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1960 wrote to memory of 2404 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1960 wrote to memory of 2404 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1960 wrote to memory of 2404 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1960 wrote to memory of 2404 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1960 wrote to memory of 2404 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1960 wrote to memory of 2404 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1960 wrote to memory of 2404 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\745d1a7a5785501ecb9d9cde2a77f307bc601e30af140b44af9fec041ae81766.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\745d1a7a5785501ecb9d9cde2a77f307bc601e30af140b44af9fec041ae81766.dll,#1
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 5isohu.com | udp |
| US | 8.8.8.8:53 | www.aieov.com | udp |
| US | 173.255.194.134:80 | www.aieov.com | tcp |
Files
\Program Files\Common Files\System\symsrv.dll
| MD5 | 7574cf2c64f35161ab1292e2f532aabf |
| SHA1 | 14ba3fa927a06224dfe587014299e834def4644f |
| SHA256 | de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085 |
| SHA512 | 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab |
memory/2404-3-0x0000000010000000-0x0000000010030000-memory.dmp
memory/2404-6-0x0000000010000000-0x0000000010030000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-09-14 22:29
Reported
2024-09-14 22:31
Platform
win10v2004-20240802-en
Max time kernel
93s
Max time network
130s
Command Line
Signatures
Floxif, Floodfix
Detects Floxif payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Event Triggered Execution: AppInit DLLs
ACProtect 1.3x - 1.4x DLL software
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
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 |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\e: | C:\Windows\SysWOW64\rundll32.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files\Common Files\System\symsrv.dll | C:\Windows\SysWOW64\rundll32.exe | N/A |
| File created | \??\c:\program files\common files\system\symsrv.dll.000 | C:\Windows\SysWOW64\rundll32.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 956 wrote to memory of 1900 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 956 wrote to memory of 1900 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 956 wrote to memory of 1900 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\745d1a7a5785501ecb9d9cde2a77f307bc601e30af140b44af9fec041ae81766.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\745d1a7a5785501ecb9d9cde2a77f307bc601e30af140b44af9fec041ae81766.dll,#1
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 5isohu.com | udp |
| US | 8.8.8.8:53 | 25.140.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.aieov.com | udp |
| US | 45.33.2.79:80 | www.aieov.com | tcp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 79.2.33.45.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 5isohu.com | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 42.56.20.217.in-addr.arpa | udp |
Files
C:\Program Files\Common Files\System\symsrv.dll
| MD5 | 7574cf2c64f35161ab1292e2f532aabf |
| SHA1 | 14ba3fa927a06224dfe587014299e834def4644f |
| SHA256 | de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085 |
| SHA512 | 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab |
memory/1900-4-0x0000000010000000-0x0000000010030000-memory.dmp
memory/1900-7-0x0000000010000000-0x0000000010030000-memory.dmp