Analysis Overview
SHA256
7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5
Threat Level: Known bad
The file 7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5 was found to be: Known bad.
Malicious Activity Summary
Floxif, Floodfix
Detects Floxif payload
Drops file in Drivers directory
Event Triggered Execution: AppInit DLLs
UPX packed file
Loads dropped DLL
Executes dropped EXE
ACProtect 1.3x - 1.4x DLL software
Modifies system executable filetype association
Enumerates connected drives
Drops file in Program Files directory
System Location Discovery: System Language Discovery
Uses Task Scheduler COM API
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Opens file in notepad (likely ransom note)
Modifies registry class
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-17 13:44
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-17 13:44
Reported
2024-08-17 13:47
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 |
Drops file in Drivers directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\System32\drivers\etc\hosts | C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd564.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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd564.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5.exe | N/A |
| N/A | N/A | N/A | N/A |
Modifies system executable filetype association
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 |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\e: | C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files\Common Files\System\symsrv.dll | C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5.exe | N/A |
| File created | \??\c:\program files\common files\system\symsrv.dll.000 | C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5.exe | N/A |
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\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5.exe | N/A |
Modifies registry class
Opens file in notepad (likely ransom note)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\Notepad.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd564.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
Processes
C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5.exe
"C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5.exe"
C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd564.exe
C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5.exe
C:\Windows\System32\Notepad.exe
Notepad.exe C:\Users\Admin\Desktop\Rkill.txt
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | crl.microsoft.com | udp |
| GB | 2.18.190.71:80 | crl.microsoft.com | tcp |
| US | 8.8.8.8:53 | 5isohu.com | udp |
| US | 8.8.8.8:53 | www.aieov.com | udp |
| US | 45.33.2.79:80 | www.aieov.com | tcp |
| US | 45.33.2.79:80 | www.aieov.com | tcp |
| US | 8.8.8.8:53 | crl.microsoft.com | udp |
| GB | 2.18.190.71:80 | crl.microsoft.com | tcp |
Files
\Program Files\Common Files\System\symsrv.dll
| MD5 | 7574cf2c64f35161ab1292e2f532aabf |
| SHA1 | 14ba3fa927a06224dfe587014299e834def4644f |
| SHA256 | de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085 |
| SHA512 | 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab |
memory/1624-3-0x0000000010000000-0x0000000010030000-memory.dmp
\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd564.exe
| MD5 | 0b768337711afaf41e40ba8f242c79cc |
| SHA1 | 10ae8a2b53a9853631375b307f4a6b572a61b391 |
| SHA256 | ebf4f6d4cd5eed24fe46f834c3b942e02a6e4c9ad3ba8fbaac61e4d0fd104e73 |
| SHA512 | 3abdacf0f17bad81829247d4504e48504560623bca08c6ee188ba9dfda4789892ec0b8ea647eff1c28d6d7577b971db0113af4e161c25096d401d73ecaa230d0 |
C:\Users\Admin\Desktop\Rkill.txt
| MD5 | bea2ed6c3dedfcfef0be2e715640ed84 |
| SHA1 | 12c934f0d147a4000ba04de0b39edb29e32ed57a |
| SHA256 | e7ba12ec724acc169f9b8d81f46d901506dae46ab21d5cbe3e9a671dd90d910a |
| SHA512 | 619be4c33846cee58c2085f8b062e9e9ef8685411e1fbf52907472de65d9439274f8a879d64f57079ea81b330060117d2151587cce2ce32e87bf2eaaa6f473ad |
memory/1624-30-0x0000000010000000-0x0000000010030000-memory.dmp
memory/1624-28-0x0000000000900000-0x0000000000ABE000-memory.dmp
memory/1624-36-0x0000000000900000-0x0000000000ABE000-memory.dmp
C:\Users\Admin\Desktop\Rkill.txt
| MD5 | 40de3e416b809386a7a13c90afa688e7 |
| SHA1 | ef0e47ca267abd4b543d5bc6fd72831fe4046a12 |
| SHA256 | c59f7facd81d95be9f83aa18a0d1377ee141ad99692a74a4def4792dca81f890 |
| SHA512 | 957835ad03e8a0fee6473d539f8d70a668bbfcdcf5d50305ca5cf16ce8e93a703ad9a8b2328eb1d297d5cdab4956ffc59df8317615eddc52c9afc5b6831783d4 |
memory/1624-38-0x0000000010000000-0x0000000010030000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-17 13:44
Reported
2024-08-17 13:47
Platform
win10v2004-20240802-en
Max time kernel
149s
Max time network
152s
Command Line
Signatures
Floxif, Floodfix
Detects Floxif payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Drops file in Drivers directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\System32\drivers\etc\hosts | C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd564.exe | N/A |
ACProtect 1.3x - 1.4x DLL software
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd564.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5.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 |
| 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:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files\Common Files\System\symsrv.dll | C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5.exe | N/A |
| File created | \??\c:\program files\common files\system\symsrv.dll.000 | C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5.exe | N/A |
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\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5.exe | N/A |
Opens file in notepad (likely ransom note)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\Notepad.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd564.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2304 wrote to memory of 3876 | N/A | C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5.exe | C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd564.exe |
| PID 2304 wrote to memory of 3876 | N/A | C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5.exe | C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd564.exe |
| PID 3876 wrote to memory of 1092 | N/A | C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd564.exe | C:\Windows\System32\Notepad.exe |
| PID 3876 wrote to memory of 1092 | N/A | C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd564.exe | C:\Windows\System32\Notepad.exe |
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
Processes
C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5.exe
"C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5.exe"
C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd564.exe
C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5.exe
C:\Windows\System32\Notepad.exe
Notepad.exe C:\Users\Admin\Desktop\Rkill.txt
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 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 5isohu.com | udp |
| US | 8.8.8.8:53 | www.aieov.com | udp |
| US | 8.8.8.8:53 | 74.32.126.40.in-addr.arpa | udp |
| US | 198.58.118.167:80 | www.aieov.com | tcp |
| US | 8.8.8.8:53 | 167.118.58.198.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 5isohu.com | udp |
| US | 198.58.118.167:80 | www.aieov.com | tcp |
| US | 8.8.8.8:53 | 5isohu.com | udp |
| US | 198.58.118.167:80 | www.aieov.com | tcp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 198.58.118.167:80 | www.aieov.com | tcp |
| US | 8.8.8.8:53 | 5isohu.com | udp |
| US | 198.58.118.167:80 | www.aieov.com | tcp |
| US | 8.8.8.8:53 | 5isohu.com | udp |
| US | 198.58.118.167:80 | www.aieov.com | tcp |
| US | 8.8.8.8:53 | 5isohu.com | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10.28.171.150.in-addr.arpa | udp |
Files
C:\Program Files\Common Files\System\symsrv.dll
| MD5 | 7574cf2c64f35161ab1292e2f532aabf |
| SHA1 | 14ba3fa927a06224dfe587014299e834def4644f |
| SHA256 | de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085 |
| SHA512 | 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab |
memory/2304-3-0x0000000010000000-0x0000000010030000-memory.dmp
memory/2304-5-0x0000000000FA1000-0x0000000000FA2000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd564.exe
| MD5 | 0b768337711afaf41e40ba8f242c79cc |
| SHA1 | 10ae8a2b53a9853631375b307f4a6b572a61b391 |
| SHA256 | ebf4f6d4cd5eed24fe46f834c3b942e02a6e4c9ad3ba8fbaac61e4d0fd104e73 |
| SHA512 | 3abdacf0f17bad81829247d4504e48504560623bca08c6ee188ba9dfda4789892ec0b8ea647eff1c28d6d7577b971db0113af4e161c25096d401d73ecaa230d0 |
C:\Users\Admin\Desktop\Rkill.txt
| MD5 | bea2ed6c3dedfcfef0be2e715640ed84 |
| SHA1 | 12c934f0d147a4000ba04de0b39edb29e32ed57a |
| SHA256 | e7ba12ec724acc169f9b8d81f46d901506dae46ab21d5cbe3e9a671dd90d910a |
| SHA512 | 619be4c33846cee58c2085f8b062e9e9ef8685411e1fbf52907472de65d9439274f8a879d64f57079ea81b330060117d2151587cce2ce32e87bf2eaaa6f473ad |
memory/2304-20-0x0000000010000000-0x0000000010030000-memory.dmp
memory/2304-21-0x0000000000FA0000-0x000000000115E000-memory.dmp
memory/2304-28-0x0000000010000000-0x0000000010030000-memory.dmp
C:\Program Files\Common Files\System\symsrv.dll.000
| MD5 | 1130c911bf5db4b8f7cf9b6f4b457623 |
| SHA1 | 48e734c4bc1a8b5399bff4954e54b268bde9d54c |
| SHA256 | eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1 |
| SHA512 | 94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0 |
memory/2304-36-0x0000000010000000-0x0000000010030000-memory.dmp
memory/2304-39-0x0000000010000000-0x0000000010030000-memory.dmp
memory/2304-37-0x0000000000FA0000-0x000000000115E000-memory.dmp
C:\Users\Admin\Desktop\Rkill.txt
| MD5 | d4b53d386d57a1d6c6166c655b671564 |
| SHA1 | 8ec1fb4b3f158ebb0fb6d6409db5f63922657ef2 |
| SHA256 | 64e282671208468911413ffcfbf88d363b48c6b0fd39067716a93f3b876f815c |
| SHA512 | 5db63d7a3f5ad0c7571d4599a7fded5517eaa40082b89c50ac97e66594d70c31eca8778f02ab951967d96f0a037cce8d3d81f301bdff5662bf6995881a33f72d |