Analysis Overview
SHA256
827fe43726e6b1a41ad3a1647902b0391bdf82d1b440896ad86eed97e3b25a55
Threat Level: Known bad
The file fbf158cad766092142f47e1a0f2f9c00N.exe was found to be: Known bad.
Malicious Activity Summary
GCleaner
Deletes itself
Checks computer location settings
Enumerates physical storage devices
Unsigned PE
System Location Discovery: System Language Discovery
Program crash
Suspicious use of AdjustPrivilegeToken
Kills process with taskkill
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-31 12:33
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-31 12:33
Reported
2024-08-31 12:35
Platform
win7-20240704-en
Max time kernel
23s
Max time network
24s
Command Line
Signatures
GCleaner
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.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\fbf158cad766092142f47e1a0f2f9c00N.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:\Windows\SysWOW64\taskkill.exe | N/A |
Kills process with taskkill
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 844 wrote to memory of 2544 | N/A | C:\Users\Admin\AppData\Local\Temp\fbf158cad766092142f47e1a0f2f9c00N.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 844 wrote to memory of 2544 | N/A | C:\Users\Admin\AppData\Local\Temp\fbf158cad766092142f47e1a0f2f9c00N.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 844 wrote to memory of 2544 | N/A | C:\Users\Admin\AppData\Local\Temp\fbf158cad766092142f47e1a0f2f9c00N.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 844 wrote to memory of 2544 | N/A | C:\Users\Admin\AppData\Local\Temp\fbf158cad766092142f47e1a0f2f9c00N.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2544 wrote to memory of 836 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 2544 wrote to memory of 836 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 2544 wrote to memory of 836 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 2544 wrote to memory of 836 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\fbf158cad766092142f47e1a0f2f9c00N.exe
"C:\Users\Admin\AppData\Local\Temp\fbf158cad766092142f47e1a0f2f9c00N.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "fbf158cad766092142f47e1a0f2f9c00N.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\fbf158cad766092142f47e1a0f2f9c00N.exe" & exit
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "fbf158cad766092142f47e1a0f2f9c00N.exe" /f
Network
| Country | Destination | Domain | Proto |
| RU | 80.66.75.114:80 | 80.66.75.114 | tcp |
Files
memory/844-1-0x0000000000610000-0x0000000000710000-memory.dmp
memory/844-2-0x0000000000400000-0x000000000042F000-memory.dmp
memory/844-3-0x0000000000400000-0x000000000044C000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\M7H6XY0V\download[1].htm
| MD5 | cfcd208495d565ef66e7dff9f98764da |
| SHA1 | b6589fc6ab0dc82cf12099d1c2d40ab994e8410c |
| SHA256 | 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9 |
| SHA512 | 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99 |
memory/844-9-0x0000000000610000-0x0000000000710000-memory.dmp
memory/844-11-0x0000000000400000-0x000000000042F000-memory.dmp
memory/844-12-0x0000000000400000-0x000000000044C000-memory.dmp
memory/844-23-0x0000000000610000-0x0000000000710000-memory.dmp
memory/844-22-0x0000000000400000-0x000000000042F000-memory.dmp
memory/844-21-0x0000000000400000-0x000000000044C000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-31 12:33
Reported
2024-08-31 12:35
Platform
win10v2004-20240802-en
Max time kernel
102s
Max time network
102s
Command Line
Signatures
GCleaner
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\fbf158cad766092142f47e1a0f2f9c00N.exe | N/A |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\fbf158cad766092142f47e1a0f2f9c00N.exe |
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\fbf158cad766092142f47e1a0f2f9c00N.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:\Windows\SysWOW64\taskkill.exe | N/A |
Kills process with taskkill
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4612 wrote to memory of 1364 | N/A | C:\Users\Admin\AppData\Local\Temp\fbf158cad766092142f47e1a0f2f9c00N.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4612 wrote to memory of 1364 | N/A | C:\Users\Admin\AppData\Local\Temp\fbf158cad766092142f47e1a0f2f9c00N.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4612 wrote to memory of 1364 | N/A | C:\Users\Admin\AppData\Local\Temp\fbf158cad766092142f47e1a0f2f9c00N.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1364 wrote to memory of 1788 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 1364 wrote to memory of 1788 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 1364 wrote to memory of 1788 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\fbf158cad766092142f47e1a0f2f9c00N.exe
"C:\Users\Admin\AppData\Local\Temp\fbf158cad766092142f47e1a0f2f9c00N.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "fbf158cad766092142f47e1a0f2f9c00N.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\fbf158cad766092142f47e1a0f2f9c00N.exe" & exit
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4612 -ip 4612
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "fbf158cad766092142f47e1a0f2f9c00N.exe" /f
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4612 -s 1484
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 4.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.144.22.2.in-addr.arpa | udp |
| RU | 80.66.75.114:80 | 80.66.75.114 | tcp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 114.75.66.80.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 24.139.73.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.243.111.52.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 |
Files
memory/4612-1-0x0000000000740000-0x0000000000840000-memory.dmp
memory/4612-2-0x0000000000560000-0x000000000058D000-memory.dmp
memory/4612-3-0x0000000000400000-0x000000000042F000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\LI43KEDR\download[1].htm
| MD5 | cfcd208495d565ef66e7dff9f98764da |
| SHA1 | b6589fc6ab0dc82cf12099d1c2d40ab994e8410c |
| SHA256 | 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9 |
| SHA512 | 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99 |
memory/4612-9-0x0000000000400000-0x000000000044C000-memory.dmp
memory/4612-10-0x0000000000740000-0x0000000000840000-memory.dmp
memory/4612-12-0x0000000000560000-0x000000000058D000-memory.dmp
memory/4612-13-0x0000000000400000-0x000000000042F000-memory.dmp
memory/4612-21-0x0000000000400000-0x000000000044C000-memory.dmp
memory/4612-22-0x0000000000400000-0x000000000042F000-memory.dmp