General
- Target tmpb81vvypl
- Size 4.1MB
- Sample260522-24lc7aav41
- SHA256 b2fab727d9a699e8b265dd02c8aa02ea3b620e666133e6dabc2bc96dfd1c9ac4
- MD5 443b21b85b0afa0e9bf6df648842d8d9
- SHA1 8d0eb7cc8070ab2c805a4547c87a4ecf23381480
- SHA512 453f23fcb4272ff4693506e4ba934faec0ffa07eab74b91091cc97f4002098679e4429fcd89a45fce82632be40df115aabad3fd4af2ecf8e7f3cca5cc7ab996f
- SSDEEP 98304:qlvc+ww7bAmJmIuyqdk/6KKs1/BhMAV+jNxIqo4afrOYKhORHG5+yb:qvlbrQIuyL/DvBqAmIpfiu6J
- TLSH T1B016336579C0D430E69283B48F71EBB487FD7CB88A7A098F2F988DA54F112D2DF55242
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
tmpb81vvypl.exe
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral2
Sample
tmpb81vvypl.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral3
Sample
tmpb81vvypl.exe
Resource
win11-20260513-en
Malware Config
Targets
-
- Target tmpb81vvypl
- Size 4.1MB
- SHA256 b2fab727d9a699e8b265dd02c8aa02ea3b620e666133e6dabc2bc96dfd1c9ac4
- MD5 443b21b85b0afa0e9bf6df648842d8d9
- SHA1 8d0eb7cc8070ab2c805a4547c87a4ecf23381480
- SHA512 453f23fcb4272ff4693506e4ba934faec0ffa07eab74b91091cc97f4002098679e4429fcd89a45fce82632be40df115aabad3fd4af2ecf8e7f3cca5cc7ab996f
- SSDEEP 98304:qlvc+ww7bAmJmIuyqdk/6KKs1/BhMAV+jNxIqo4afrOYKhORHG5+yb:qvlbrQIuyL/DvBqAmIpfiu6J
- TLSH T1B016336579C0D430E69283B48F71EBB487FD7CB88A7A098F2F988DA54F112D2DF55242
- MD5 SHA1 SHA512 SSDEEP TLSH
Glupteba payload
Windows security bypass
Modifies Windows Firewall
Executes dropped EXE
Windows security modification
Adds Run key to start application
Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
Contacts third-party web service commonly abused for C2
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
Manipulates WinMonFS driver.
Roottkits write to WinMonFS to hide directories/files from being detected.
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Impair Defenses
3Disable or Modify System Firewall
1Disable or Modify Tools
2Modify Registry
4Subvert Trust Controls
2Install Root Certificate
2