Analysis Overview
SHA256
655c3a097d8d2b9809538431440d8160635380d67c1bfdd929f2d394c0fe0235
Threat Level: Known bad
The file 655c3a097d8d2b9809538431440d8160635380d67c1bfdd929f2d394c0fe0235 was found to be: Known bad.
Malicious Activity Summary
Floxif, Floodfix
Detects Floxif payload
Event Triggered Execution: AppInit DLLs
Loads dropped DLL
ACProtect 1.3x - 1.4x DLL software
UPX packed file
Drops file in Program Files directory
System Location Discovery: System Language Discovery
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-18 21:51
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-18 21:51
Reported
2024-08-18 21:53
Platform
win7-20240708-en
Max time kernel
121s
Max time network
122s
Command Line
Signatures
Floxif, Floodfix
Detects Floxif payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | 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 |
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 |
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 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 2976 wrote to memory of 2972 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2976 wrote to memory of 2972 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2976 wrote to memory of 2972 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2976 wrote to memory of 2972 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2976 wrote to memory of 2972 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2976 wrote to memory of 2972 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2976 wrote to memory of 2972 | 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\655c3a097d8d2b9809538431440d8160635380d67c1bfdd929f2d394c0fe0235.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\655c3a097d8d2b9809538431440d8160635380d67c1bfdd929f2d394c0fe0235.dll,#1
Network
Files
memory/2972-3-0x00000000001D0000-0x0000000000200000-memory.dmp
\Program Files\Common Files\System\symsrv.dll
| MD5 | 7574cf2c64f35161ab1292e2f532aabf |
| SHA1 | 14ba3fa927a06224dfe587014299e834def4644f |
| SHA256 | de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085 |
| SHA512 | 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab |
memory/2972-6-0x00000000001D0000-0x0000000000200000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-18 21:51
Reported
2024-08-18 21:53
Platform
win10v2004-20240802-en
Max time kernel
133s
Max time network
122s
Command Line
Signatures
Floxif, Floodfix
Detects Floxif payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | 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 |
| 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 |
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 |
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 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 2516 wrote to memory of 3504 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2516 wrote to memory of 3504 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2516 wrote to memory of 3504 | 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\655c3a097d8d2b9809538431440d8160635380d67c1bfdd929f2d394c0fe0235.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\655c3a097d8d2b9809538431440d8160635380d67c1bfdd929f2d394c0fe0235.dll,#1
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 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 13.107.21.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 237.21.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.58.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | 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
C:\Program Files\Common Files\System\symsrv.dll
| MD5 | 7574cf2c64f35161ab1292e2f532aabf |
| SHA1 | 14ba3fa927a06224dfe587014299e834def4644f |
| SHA256 | de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085 |
| SHA512 | 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab |
memory/3504-4-0x0000000000D50000-0x0000000000D80000-memory.dmp
memory/3504-8-0x0000000000D50000-0x0000000000D80000-memory.dmp