Analysis Overview
SHA256
3a8bb4c7594d73de23d089067701fe44d696b25701d7b22cd0cb8f8a5db66e8e
Threat Level: Known bad
The file b7a1cfed5723e322db150a4914bff0b0N was found to be: Known bad.
Malicious Activity Summary
Floxif family
Detects Floxif payload
ACProtect 1.3x - 1.4x DLL software
UPX packed file
Network Service Discovery
Unsigned PE
Program crash
System Location Discovery: System Language Discovery
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-09-13 02:13
Signatures
Detects Floxif payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Floxif family
ACProtect 1.3x - 1.4x DLL software
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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
2024-09-13 02:13
Reported
2024-09-13 02:15
Platform
win7-20240903-en
Max time kernel
117s
Max time network
118s
Command Line
Signatures
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Network Service Discovery
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\arp.exe | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\arp.exe | N/A |
| 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
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b7a1cfed5723e322db150a4914bff0b0N.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b7a1cfed5723e322db150a4914bff0b0N.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1792 -s 232
C:\Windows\SysWOW64\arp.exe
arp -a
Network
Files
memory/1792-0-0x0000000010000000-0x0000000010033000-memory.dmp
memory/1792-1-0x0000000010000000-0x0000000010033000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-09-13 02:13
Reported
2024-09-13 02:15
Platform
win10v2004-20240802-en
Max time kernel
95s
Max time network
102s
Command Line
Signatures
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Network Service Discovery
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\arp.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\arp.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\arp.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\arp.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\arp.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\arp.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\arp.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\arp.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\arp.exe | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\arp.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\arp.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\arp.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\arp.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\arp.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\arp.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\arp.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\arp.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\arp.exe | N/A |
| 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
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b7a1cfed5723e322db150a4914bff0b0N.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b7a1cfed5723e322db150a4914bff0b0N.dll,#1
C:\Windows\SysWOW64\arp.exe
arp -a
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1988 -ip 1988
C:\Windows\SysWOW64\arp.exe
arp -s 10.127.0.1 1b-64-14-a6-65-bb
C:\Windows\SysWOW64\arp.exe
arp -s 10.127.255.255 cc-e0-ff-3f-8c-b7
C:\Windows\SysWOW64\arp.exe
arp -s 49.12.169.208 67-4b-dc-8f-1f-90
C:\Windows\SysWOW64\arp.exe
arp -s 224.0.0.22 a9-d3-af-6f-c3-86
C:\Windows\SysWOW64\arp.exe
arp -s 224.0.0.251 f3-c9-39-03-f9-95
C:\Windows\SysWOW64\arp.exe
arp -s 224.0.0.252 bd-a7-c4-98-49-93
C:\Windows\SysWOW64\arp.exe
arp -s 239.255.255.250 0c-13-a8-fe-04-6a
C:\Windows\SysWOW64\arp.exe
arp -s 255.255.255.255 c6-ec-71-a4-b5-26
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1988 -s 704
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 52.111.227.13:443 | tcp | |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
Files
memory/1988-0-0x0000000010000000-0x0000000010033000-memory.dmp
memory/1988-2-0x0000000010000000-0x0000000010033000-memory.dmp