Analysis Overview
SHA256
f881f3ca74a2f3a25fbbb77a8208296c5bb0e9305c22752235234ef5f71e324f
Threat Level: Known bad
The file f881f3ca74a2f3a25fbbb77a8208296c5bb0e9305c22752235234ef5f71e324f was found to be: Known bad.
Malicious Activity Summary
GCleaner
Downloads MZ/PE file
Checks computer location settings
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Unsigned PE
Program crash
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Kills process with taskkill
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-09-02 05:49
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-09-02 05:49
Reported
2024-09-02 05:52
Platform
win10v2004-20240802-en
Max time kernel
92s
Max time network
139s
Command Line
Signatures
GCleaner
Downloads MZ/PE file
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\f881f3ca74a2f3a25fbbb77a8208296c5bb0e9305c22752235234ef5f71e324f.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\f881f3ca74a2f3a25fbbb77a8208296c5bb0e9305c22752235234ef5f71e324f.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\taskkill.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\f881f3ca74a2f3a25fbbb77a8208296c5bb0e9305c22752235234ef5f71e324f.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.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 824 wrote to memory of 4040 | N/A | C:\Users\Admin\AppData\Local\Temp\f881f3ca74a2f3a25fbbb77a8208296c5bb0e9305c22752235234ef5f71e324f.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 824 wrote to memory of 4040 | N/A | C:\Users\Admin\AppData\Local\Temp\f881f3ca74a2f3a25fbbb77a8208296c5bb0e9305c22752235234ef5f71e324f.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 824 wrote to memory of 4040 | N/A | C:\Users\Admin\AppData\Local\Temp\f881f3ca74a2f3a25fbbb77a8208296c5bb0e9305c22752235234ef5f71e324f.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4040 wrote to memory of 1164 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 4040 wrote to memory of 1164 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 4040 wrote to memory of 1164 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\f881f3ca74a2f3a25fbbb77a8208296c5bb0e9305c22752235234ef5f71e324f.exe
"C:\Users\Admin\AppData\Local\Temp\f881f3ca74a2f3a25fbbb77a8208296c5bb0e9305c22752235234ef5f71e324f.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "f881f3ca74a2f3a25fbbb77a8208296c5bb0e9305c22752235234ef5f71e324f.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\f881f3ca74a2f3a25fbbb77a8208296c5bb0e9305c22752235234ef5f71e324f.exe" & exit
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 824 -ip 824
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "f881f3ca74a2f3a25fbbb77a8208296c5bb0e9305c22752235234ef5f71e324f.exe" /f
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 824 -s 1656
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 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.32.126.40.in-addr.arpa | udp |
| RU | 80.66.75.114:80 | 80.66.75.114 | tcp |
| US | 8.8.8.8:53 | 114.75.66.80.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 121.170.16.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
Files
memory/824-1-0x0000000000720000-0x0000000000820000-memory.dmp
memory/824-2-0x00000000005B0000-0x00000000005EC000-memory.dmp
memory/824-3-0x0000000000400000-0x000000000043F000-memory.dmp
memory/824-8-0x0000000010000000-0x000000001001C000-memory.dmp
memory/824-13-0x0000000000720000-0x0000000000820000-memory.dmp
memory/824-15-0x0000000000400000-0x0000000000453000-memory.dmp
memory/824-16-0x00000000005B0000-0x00000000005EC000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\H9MX5QVK\download[1].htm
| MD5 | cfcd208495d565ef66e7dff9f98764da |
| SHA1 | b6589fc6ab0dc82cf12099d1c2d40ab994e8410c |
| SHA256 | 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9 |
| SHA512 | 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99 |
memory/824-18-0x0000000000400000-0x000000000043F000-memory.dmp
memory/824-29-0x0000000000400000-0x0000000000453000-memory.dmp
memory/824-35-0x0000000000400000-0x0000000000453000-memory.dmp
memory/824-36-0x0000000000400000-0x000000000043F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-09-02 05:49
Reported
2024-09-02 05:52
Platform
win11-20240802-en
Max time kernel
91s
Max time network
95s
Command Line
Signatures
GCleaner
Downloads MZ/PE file
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\f881f3ca74a2f3a25fbbb77a8208296c5bb0e9305c22752235234ef5f71e324f.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\f881f3ca74a2f3a25fbbb77a8208296c5bb0e9305c22752235234ef5f71e324f.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 4820 wrote to memory of 3380 | N/A | C:\Users\Admin\AppData\Local\Temp\f881f3ca74a2f3a25fbbb77a8208296c5bb0e9305c22752235234ef5f71e324f.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4820 wrote to memory of 3380 | N/A | C:\Users\Admin\AppData\Local\Temp\f881f3ca74a2f3a25fbbb77a8208296c5bb0e9305c22752235234ef5f71e324f.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4820 wrote to memory of 3380 | N/A | C:\Users\Admin\AppData\Local\Temp\f881f3ca74a2f3a25fbbb77a8208296c5bb0e9305c22752235234ef5f71e324f.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3380 wrote to memory of 4448 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 3380 wrote to memory of 4448 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 3380 wrote to memory of 4448 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\f881f3ca74a2f3a25fbbb77a8208296c5bb0e9305c22752235234ef5f71e324f.exe
"C:\Users\Admin\AppData\Local\Temp\f881f3ca74a2f3a25fbbb77a8208296c5bb0e9305c22752235234ef5f71e324f.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "f881f3ca74a2f3a25fbbb77a8208296c5bb0e9305c22752235234ef5f71e324f.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\f881f3ca74a2f3a25fbbb77a8208296c5bb0e9305c22752235234ef5f71e324f.exe" & exit
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "f881f3ca74a2f3a25fbbb77a8208296c5bb0e9305c22752235234ef5f71e324f.exe" /f
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4820 -ip 4820
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4820 -s 1748
Network
| Country | Destination | Domain | Proto |
| RU | 80.66.75.114:80 | 80.66.75.114 | tcp |
| US | 8.8.8.8:53 | 114.75.66.80.in-addr.arpa | udp |
Files
memory/4820-1-0x0000000000630000-0x0000000000730000-memory.dmp
memory/4820-2-0x00000000022B0000-0x00000000022EC000-memory.dmp
memory/4820-3-0x0000000000400000-0x000000000043F000-memory.dmp
memory/4820-8-0x0000000010000000-0x000000001001C000-memory.dmp
memory/4820-13-0x0000000000630000-0x0000000000730000-memory.dmp
memory/4820-15-0x0000000000400000-0x0000000000453000-memory.dmp
memory/4820-16-0x00000000022B0000-0x00000000022EC000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\ZQ9FC15F\download[1].htm
| MD5 | cfcd208495d565ef66e7dff9f98764da |
| SHA1 | b6589fc6ab0dc82cf12099d1c2d40ab994e8410c |
| SHA256 | 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9 |
| SHA512 | 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99 |
memory/4820-18-0x0000000000400000-0x000000000043F000-memory.dmp
memory/4820-29-0x0000000000400000-0x0000000000453000-memory.dmp
memory/4820-35-0x0000000000400000-0x0000000000453000-memory.dmp
memory/4820-36-0x0000000000400000-0x000000000043F000-memory.dmp