Analysis Overview
SHA256
21feed85dcffec9c7a76343729beecd6a53ffe854d972af207edddf154da1814
Threat Level: Known bad
The file 21feed85dcffec9c7a76343729beecd6a53ffe854d972af207edddf154da1814.exe was found to be: Known bad.
Malicious Activity Summary
GCleaner
Downloads MZ/PE file
Deletes itself
Loads dropped DLL
Program crash
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
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 01:08
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-31 01:08
Reported
2024-08-31 01:11
Platform
win7-20240704-en
Max time kernel
122s
Max time network
123s
Command Line
Signatures
GCleaner
Downloads MZ/PE file
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\21feed85dcffec9c7a76343729beecd6a53ffe854d972af207edddf154da1814.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\21feed85dcffec9c7a76343729beecd6a53ffe854d972af207edddf154da1814.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
Processes
C:\Users\Admin\AppData\Local\Temp\21feed85dcffec9c7a76343729beecd6a53ffe854d972af207edddf154da1814.exe
"C:\Users\Admin\AppData\Local\Temp\21feed85dcffec9c7a76343729beecd6a53ffe854d972af207edddf154da1814.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "21feed85dcffec9c7a76343729beecd6a53ffe854d972af207edddf154da1814.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\21feed85dcffec9c7a76343729beecd6a53ffe854d972af207edddf154da1814.exe" & exit
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "21feed85dcffec9c7a76343729beecd6a53ffe854d972af207edddf154da1814.exe" /f
Network
| Country | Destination | Domain | Proto |
| RU | 80.66.75.114:80 | 80.66.75.114 | tcp |
Files
memory/2728-1-0x00000000005A0000-0x00000000006A0000-memory.dmp
memory/2728-2-0x0000000000220000-0x000000000025C000-memory.dmp
memory/2728-3-0x0000000000400000-0x000000000043F000-memory.dmp
memory/2728-8-0x0000000010000000-0x000000001001C000-memory.dmp
memory/2728-13-0x00000000005A0000-0x00000000006A0000-memory.dmp
memory/2728-15-0x0000000000220000-0x000000000025C000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\69P6875H\download[1].htm
| MD5 | cfcd208495d565ef66e7dff9f98764da |
| SHA1 | b6589fc6ab0dc82cf12099d1c2d40ab994e8410c |
| SHA256 | 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9 |
| SHA512 | 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99 |
memory/2728-17-0x0000000000400000-0x000000000044E000-memory.dmp
memory/2728-18-0x0000000000400000-0x000000000043F000-memory.dmp
\Users\Admin\AppData\Local\Temp\pYT4RirHhETiddhzBjmVuD0L\Y-Cleaner.exe
| MD5 | a8cf5621811f7fac55cfe8cb3fa6b9f6 |
| SHA1 | 121356839e8138a03141f5f5856936a85bd2a474 |
| SHA256 | 614a0362ab87cee48d0935b5bb957d539be1d94c6fdeb3fe42fac4fbe182c10c |
| SHA512 | 4479d951435f222ca7306774002f030972c9f1715d6aaf512fca9420dd79cb6d08240f80129f213851773290254be34f0ff63c7b1f4d554a7db5f84b69e84bdd |
memory/2728-35-0x0000000000400000-0x000000000044E000-memory.dmp
memory/2728-36-0x00000000005A0000-0x00000000006A0000-memory.dmp
memory/2728-37-0x0000000000400000-0x000000000043F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-31 01:08
Reported
2024-08-31 01:11
Platform
win10v2004-20240802-en
Max time kernel
134s
Max time network
128s
Command Line
Signatures
GCleaner
Program crash
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\21feed85dcffec9c7a76343729beecd6a53ffe854d972af207edddf154da1814.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\21feed85dcffec9c7a76343729beecd6a53ffe854d972af207edddf154da1814.exe
"C:\Users\Admin\AppData\Local\Temp\21feed85dcffec9c7a76343729beecd6a53ffe854d972af207edddf154da1814.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4120 -ip 4120
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4120 -s 448
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4120 -ip 4120
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4120 -s 520
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3808,i,3387628439405076340,17957358341235678872,262144 --variations-seed-version --mojo-platform-channel-handle=1892 /prefetch:8
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 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 25.140.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 24.139.73.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.143.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
Files
memory/4120-1-0x0000000000550000-0x0000000000650000-memory.dmp
memory/4120-2-0x00000000004F0000-0x000000000052C000-memory.dmp
memory/4120-3-0x0000000000400000-0x000000000043F000-memory.dmp
memory/4120-4-0x0000000000400000-0x000000000044E000-memory.dmp
memory/4120-5-0x00000000004F0000-0x000000000052C000-memory.dmp