Analysis Overview
SHA256
639b2741f024e5d2f78170b472c90762680feaebf2473e24e0bf49b54297c25b
Threat Level: Known bad
The file 639b2741f024e5d2f78170b472c90762680feaebf2473e24e0bf49b54297c25b was found to be: Known bad.
Malicious Activity Summary
GCleaner
Downloads MZ/PE file
Checks computer location settings
Program crash
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Kills process with taskkill
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-09-05 03:24
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-09-05 03:24
Reported
2024-09-05 03:26
Platform
win10v2004-20240802-en
Max time kernel
90s
Max time network
128s
Command Line
Signatures
GCleaner
Downloads MZ/PE file
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\639b2741f024e5d2f78170b472c90762680feaebf2473e24e0bf49b54297c25b.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\639b2741f024e5d2f78170b472c90762680feaebf2473e24e0bf49b54297c25b.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\639b2741f024e5d2f78170b472c90762680feaebf2473e24e0bf49b54297c25b.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 4124 wrote to memory of 3808 | N/A | C:\Users\Admin\AppData\Local\Temp\639b2741f024e5d2f78170b472c90762680feaebf2473e24e0bf49b54297c25b.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4124 wrote to memory of 3808 | N/A | C:\Users\Admin\AppData\Local\Temp\639b2741f024e5d2f78170b472c90762680feaebf2473e24e0bf49b54297c25b.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4124 wrote to memory of 3808 | N/A | C:\Users\Admin\AppData\Local\Temp\639b2741f024e5d2f78170b472c90762680feaebf2473e24e0bf49b54297c25b.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3808 wrote to memory of 1796 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 3808 wrote to memory of 1796 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 3808 wrote to memory of 1796 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\639b2741f024e5d2f78170b472c90762680feaebf2473e24e0bf49b54297c25b.exe
"C:\Users\Admin\AppData\Local\Temp\639b2741f024e5d2f78170b472c90762680feaebf2473e24e0bf49b54297c25b.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "639b2741f024e5d2f78170b472c90762680feaebf2473e24e0bf49b54297c25b.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\639b2741f024e5d2f78170b472c90762680feaebf2473e24e0bf49b54297c25b.exe" & exit
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4124 -ip 4124
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "639b2741f024e5d2f78170b472c90762680feaebf2473e24e0bf49b54297c25b.exe" /f
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4124 -s 1692
Network
| Country | Destination | Domain | Proto |
| 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 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.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 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 52.111.229.48:443 | tcp | |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
Files
memory/4124-1-0x0000000000540000-0x0000000000640000-memory.dmp
memory/4124-2-0x00000000004F0000-0x000000000052B000-memory.dmp
memory/4124-3-0x0000000000400000-0x000000000043F000-memory.dmp
memory/4124-8-0x0000000010000000-0x000000001001C000-memory.dmp
memory/4124-13-0x0000000000540000-0x0000000000640000-memory.dmp
memory/4124-15-0x0000000000400000-0x0000000000452000-memory.dmp
memory/4124-16-0x00000000004F0000-0x000000000052B000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\ZK5NPJWQ\download[1].htm
| MD5 | cfcd208495d565ef66e7dff9f98764da |
| SHA1 | b6589fc6ab0dc82cf12099d1c2d40ab994e8410c |
| SHA256 | 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9 |
| SHA512 | 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99 |
memory/4124-18-0x0000000000400000-0x000000000043F000-memory.dmp
memory/4124-29-0x0000000000400000-0x0000000000452000-memory.dmp
memory/4124-35-0x0000000000400000-0x0000000000452000-memory.dmp
memory/4124-36-0x0000000000400000-0x000000000043F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-09-05 03:24
Reported
2024-09-05 03:26
Platform
win11-20240802-en
Max time kernel
31s
Max time network
142s
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\639b2741f024e5d2f78170b472c90762680feaebf2473e24e0bf49b54297c25b.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\639b2741f024e5d2f78170b472c90762680feaebf2473e24e0bf49b54297c25b.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 2728 wrote to memory of 1576 | N/A | C:\Users\Admin\AppData\Local\Temp\639b2741f024e5d2f78170b472c90762680feaebf2473e24e0bf49b54297c25b.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2728 wrote to memory of 1576 | N/A | C:\Users\Admin\AppData\Local\Temp\639b2741f024e5d2f78170b472c90762680feaebf2473e24e0bf49b54297c25b.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2728 wrote to memory of 1576 | N/A | C:\Users\Admin\AppData\Local\Temp\639b2741f024e5d2f78170b472c90762680feaebf2473e24e0bf49b54297c25b.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1576 wrote to memory of 1636 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 1576 wrote to memory of 1636 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 1576 wrote to memory of 1636 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\639b2741f024e5d2f78170b472c90762680feaebf2473e24e0bf49b54297c25b.exe
"C:\Users\Admin\AppData\Local\Temp\639b2741f024e5d2f78170b472c90762680feaebf2473e24e0bf49b54297c25b.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "639b2741f024e5d2f78170b472c90762680feaebf2473e24e0bf49b54297c25b.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\639b2741f024e5d2f78170b472c90762680feaebf2473e24e0bf49b54297c25b.exe" & exit
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "639b2741f024e5d2f78170b472c90762680feaebf2473e24e0bf49b54297c25b.exe" /f
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2728 -ip 2728
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2728 -s 1688
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/2728-1-0x0000000000850000-0x0000000000950000-memory.dmp
memory/2728-2-0x0000000000800000-0x000000000083B000-memory.dmp
memory/2728-3-0x0000000000400000-0x000000000043F000-memory.dmp
memory/2728-8-0x0000000010000000-0x000000001001C000-memory.dmp
memory/2728-13-0x0000000000850000-0x0000000000950000-memory.dmp
memory/2728-15-0x0000000000400000-0x0000000000452000-memory.dmp
memory/2728-16-0x0000000000800000-0x000000000083B000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\WC3VGW7B\download[1].htm
| MD5 | cfcd208495d565ef66e7dff9f98764da |
| SHA1 | b6589fc6ab0dc82cf12099d1c2d40ab994e8410c |
| SHA256 | 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9 |
| SHA512 | 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99 |
memory/2728-18-0x0000000000400000-0x000000000043F000-memory.dmp
memory/2728-29-0x0000000000400000-0x0000000000452000-memory.dmp
memory/2728-35-0x0000000000400000-0x0000000000452000-memory.dmp
memory/2728-36-0x0000000000400000-0x000000000043F000-memory.dmp