security-com · Crawled Jul 31, 2026
Backdoor.Mistic: New Backdoor May be Linked to Ransomware Access Broker
16 IoCs 1 Actors 4 Malware
Read original article ↗
AI Summary
Backdoor.Mistic is a newly identified stealthy memory-resident backdoor used in cybercrime intrusions since April 2026. It has been deployed alongside ModeloRAT, a Python-based RAT linked to the financially motivated threat actor Woodgnat (aka KongTuke), known for selling initial access to ransomware affiliates including Qilin, Black Basta, and Rhysida. Mistic is sideloaded via legitimate binaries like MpExtMs.exe and loads malicious DLLs such as EndpointDlp.dll, enabling fileless execution, in-memory payload loading, and self-deletion via a kill switch. The actor uses social engineering lures (ClickFix, FileFix, CrashFix) and Microsoft Teams for initial access, with opportunistic targeting across insurance, education, IT, and professional services sectors.
AI-extracted · verify before operational use
Extracted Entities 5 found
Indicators of Compromise 16 extracted
| Type | Value | Detail |
|---|---|---|
| SHA-256 | 1e41c7bfaa6aa3b93b6cc024274a10e33f3e12fe7c98c1db387ef8927f9d1984 | Details → |
| SHA-256 | 34d798a6c55e57ed0932b6499f4fbcb5454bdfca903307be101a0594b0ac07bc | Details → |
| SHA-256 | 3f797a639bc855bc6d5471f327924b62d10900ddec49b970eca6604142bbb4be | Details → |
| SHA-256 | 59e3c4cb06331b4f2d78a9a0592f3747e573bd01c5a7650c26361d1e25520712 | Details → |
| SHA-256 | 8c935feec4bd05d5d918df308be417532fb42608fb989a08eab183e0ae699235 | Details → |
| SHA-256 | afd5f1ed45a9867daf3bc64152cef460a06b164c8183e490db39146d4749a82c | Details → |
| SHA-256 | db972979d508e75fe730d3b72c2701470fbdaeaf8ebdd674744754fa44438ca5 | Details → |
| SHA-256 | f591275a8f014b29e567529d67c54eb7bb4473db1c38737d6bfd5b3d52c9344e | Details → |
| SHA-256 | fb3630822b70bacb56aa4cec29b5a0e3e9acb3920809e70310a4003385a6d34a | Details → |
| IP | 142[.]93[.]242[.]144 | Details → |
| IP | 144[.]31[.]53[.]78 | Details → |
| IP | 198[.]13[.]159[.]44 | Details → |
| IP | 199[.]91[.]221[.]42 | Details → |
| Domain | authorized-logins[.]net | Details → |
| Domain | b6w9m2z5x8q1v3k[.]top | Details → |
| Domain | carrolc[.]com | Details → |
MITRE ATT&CK TTPs 48 techniques
T1018 Remote System Discovery · Discovery T1021.001 Remote Desktop Protocol · Lateral Movement T1021.002 SMB/Windows Admin Shares · Lateral Movement T1033 System Owner/User Discovery · Discovery T1046 Network Service Discovery · Discovery T1047 Windows Management Instrumentation · Execution T1048 Exfiltration Over Alternative Protocol · Exfiltration T1053 Scheduled Task/Job · Execution T1057 Process Discovery · Discovery T1059.001 PowerShell · Execution T1070.001 Clear Windows Event Logs · Defense Evasion T1078 Valid Accounts · Defense Evasion T1082 System Information Discovery · Discovery T1083 File and Directory Discovery · Discovery T1086 T1086 T1087.002 Domain Account · Discovery T1098 Account Manipulation · Persistence T1105 Ingress Tool Transfer · Command And Control T1110 Brute Force · Credential Access T1110.003 Password Spraying · Credential Access T1112 Modify Registry · Defense Evasion T1133 External Remote Services · Persistence T1190 Exploit Public-Facing Application · Initial Access T1203 Exploitation for Client Execution · Execution T1210 Exploitation of Remote Services · Lateral Movement T1211 Exploitation for Defense Evasion · Defense Evasion T1218 System Binary Proxy Execution · Defense Evasion T1222 File and Directory Permissions Modification · Defense Evasion T1222.001 Windows File and Directory Permissions Modification · Defense Evasion T1482 Domain Trust Discovery · Discovery T1484.001 Group Policy Modification · Defense Evasion T1485 Data Destruction · Impact T1486 Data Encrypted for Impact · Impact T1489 Service Stop · Impact T1490 Inhibit System Recovery · Impact T1537 Transfer Data to Cloud Account · Exfiltration T1547.001 Registry Run Keys / Startup Folder · Persistence T1558 Steal or Forge Kerberos Tickets · Credential Access T1562.001 Disable or Modify Tools · Defense Evasion T1566 Phishing · Initial Access T1569 System Services · Execution T1570 Lateral Tool Transfer · Lateral Movement T1573 Encrypted Channel · Command And Control T1588 Obtain Capabilities · Resource Development T1589 Gather Victim Identity Information · Reconnaissance T1595 Active Scanning · Reconnaissance T1599 Network Boundary Bridging · Defense Evasion T1650 Acquire Access · Resource Development