General
- Target RuntimeBroker.exe
- Size 31.6MB
- Sample261029-yr51aaev6y
- SHA256 3a62ed78497b0ece5c72677afbfbcb7b19458f56367928e26cceabce595fe66f
- MD5 fab14eb2c86a7776c581dd902905e5d3
- SHA1 ea1bc012918595356afcdc071b9aa084ff06b01f
- SHA512 f1064525a419baaf64bf1230277c6e997c8278af9498e4c0a3518211f734ecd81fbf26e5dd4697e6858c2b11d94b0936e578d32c847c3852f8d44929eff759dd
- SSDEEP 786432:d7EBbS4ce2snFelNly7w6URpho10MfbdCNbdjiAH5god5v/r5hhwQP:dwM4f/sHlyDUPhG0mbQPiodh5hhwQP
- TLSH T13C7733597F2241B7F5E521391EBB9862F3E272C78B6141EF077010562E6B1E86D3C3A2
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
RuntimeBroker.exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
RuntimeBroker.exe
Resource
win11ltsc2024-20260911-en
Behavioral task
behavioral3
Sample
pysilon.pyc
Resource
win10v2004-20260911-en
Behavioral task
behavioral4
Sample
pysilon.pyc
Resource
win11ltsc2024-20260911-en
Malware Config
Targets
-
- Target RuntimeBroker.exe
- Size 31.6MB
- SHA256 3a62ed78497b0ece5c72677afbfbcb7b19458f56367928e26cceabce595fe66f
- MD5 fab14eb2c86a7776c581dd902905e5d3
- SHA1 ea1bc012918595356afcdc071b9aa084ff06b01f
- SHA512 f1064525a419baaf64bf1230277c6e997c8278af9498e4c0a3518211f734ecd81fbf26e5dd4697e6858c2b11d94b0936e578d32c847c3852f8d44929eff759dd
- SSDEEP 786432:d7EBbS4ce2snFelNly7w6URpho10MfbdCNbdjiAH5god5v/r5hhwQP:dwM4f/sHlyDUPhG0mbQPiodh5hhwQP
- TLSH T13C7733597F2241B7F5E521391EBB9862F3E272C78B6141EF077010562E6B1E86D3C3A2
- MD5 SHA1 SHA512 SSDEEP TLSH
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
Executes a file named after a Windows system binary
The file runs from a user directory while carrying the name of an executable that normally only exists in System32.
Executes dropped EXE
Loads dropped DLL
Adds Run key to start application
Contacts third-party web service commonly abused for C2
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
Uses WMI to collect hardware manufacturer information
Uses WMI to read the system manufacturer, model, baseboard or display adapter, which is often used to detect virtual machines and evade sandboxes.
Executes a VBScript file via the Windows Script Host.
-
- Target pysilon.pyc
- Size 109KB
- SHA256 1bfcace84f5f15547a5d0c80eb77fc39e0acc02f72392414c35059057aed6401
- MD5 996c0d0d616bcf3f8530f357ecf7db69
- SHA1 2b7ca9b71f2dcde7e967a37870f62a6c0527d4b2
- SHA512 b8896d3f36da4d1f1008d8b5139d17fc84f1006875854358452aa621ff700a92f4e8e303920a59ae9039a577d033f9c6a9da388e00d3929de60e80012a009894
- SSDEEP 768:RZaVkojH7UOwyMESxk9dqRtz3bu5ZTce4U+IR3XfhxRhnFi0fct+MoJcU4iM6K1M:Rsl3dFME6RtzLeRnfFhnFvc1ZRiM6K6
- TLSH T15DB3E6B995354A23FEC5B27930C6AF91B322C142B200CB0BEA2D5DF1BEC9315899573D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score3/10
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2Visual Basic
1Windows Command Shell
1Windows Management Instrumentation
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
Masquerading
1Match Legitimate Name or Location
1Modify Registry
1Virtualization/Sandbox Evasion
1System Checks
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1