BLACKBYTE

RANSOMWARE

BlackByte is a ransomware group that primarily targets organizations across various sectors but lacks specific industry focus as indicated by the data provided. The initial access vector of BlackByte remains unclear, though it may involve exploiting vulnerabilities or social engineering tactics to gain entry into networks. Once inside, the group typically employs double extortion techniques, encrypting files and threatening to leak stolen data unless a ransom is paid. What sets BlackByte apart from other ransomware actors is its use of BYOVD (Bring Your Own Vulnerability Driver) attacks, which involve exploiting vulnerabilities in third-party drivers such as those provided by Dell, Gigabyte, and MSI Afterburner.

From a technical standpoint, BlackByte has been linked to two predicted CVEs: one critical and one high severity, though no confirmed exploits have been reported. The group’s use of BYOVD attacks highlights its sophistication in targeting lesser-known vulnerabilities within widely used third-party drivers. Additionally, the absence of confirmed exploitation suggests that BlackByte may be leveraging zero-day vulnerabilities or sophisticated techniques to remain under the radar. Defenders should prioritize securing and regularly updating third-party software and drivers, particularly those from Dell, Gigabyte, and MSI Afterburner, to mitigate potential threats posed by BlackByte’s unique attack vectors.

Predicted CVEs (3) CORRELATION

How does prediction work?

Predicted CVEs are identified through automated correlation using multiple sources: vendor/product profiles historically targeted by the group (MITRE ATT&CK), attack chain patterns (KEV + TTPs), threat intelligence (MISP, STIX), and AI analysis. These CVEs have not been confirmed as exploited by this specific group, but have a high probability of being targets based on the actor's operational profile.

CVE-2020-3992 CRITICAL VMware ESXi predicted 9.8 CVE-2024-37085 HIGH VMware ESXi high 7.2 CVE-2024-37085 HIGH VMware ESXi predicted 7.2

ATT&CK Techniques (48)

T1190 Exploit Public-Facing Application Initial Access T1047 Windows Management Instrumentation Execution T1059.001 Command and Scripting Interpreter: PowerShell Execution T1059.003 Command and Scripting Interpreter: Windows Command Shell Execution T1569.002 System Services: Service Execution Execution T1136.002 Create Account: Domain Account Persistence T1505.003 Server Software Component: Web Shell Persistence T1053.005 Scheduled Task/Job: Scheduled Task Privilege Escalation T1068 Exploitation for Privilege Escalation Privilege Escalation T1543.003 Create or Modify System Process: Windows Service Privilege Escalation T1547.001 Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder Privilege Escalation T1036.008 Masquerading: Masquerade File Type Stealth T1055 Process Injection Stealth T1055.012 Process Injection: Process Hollowing Stealth T1070.004 Indicator Removal: File Deletion Stealth T1078 Valid Accounts Stealth T1078.002 Valid Accounts: Domain Accounts Stealth T1134.003 Access Token Manipulation: Make and Impersonate Token Stealth T1140 Deobfuscate/Decode Files or Information Stealth T1480 Execution Guardrails Stealth T1003 OS Credential Dumping Credential Access T1012 Query Registry Discovery T1016 System Network Configuration Discovery Discovery T1018 Remote System Discovery Discovery T1046 Network Service Discovery Discovery T1082 System Information Discovery Discovery T1087.002 Account Discovery: Domain Account Discovery T1135 Network Share Discovery Discovery T1482 Domain Trust Discovery Discovery T1518.001 Software Discovery: Security Software Discovery Discovery T1614.001 System Location Discovery: System Language Discovery Discovery T1021.001 Remote Services: Remote Desktop Protocol Lateral Movement T1021.002 Remote Services: SMB/Windows Admin Shares Lateral Movement T1570 Lateral Tool Transfer Lateral Movement T1560 Archive Collected Data Collection T1041 Exfiltration Over C2 Channel Exfiltration T1567 Exfiltration Over Web Service Exfiltration T1071.001 Application Layer Protocol: Web Protocols Command and Control T1105 Ingress Tool Transfer Command and Control T1219 Remote Access Tools Command and Control T1486 Data Encrypted for Impact Impact T1490 Inhibit System Recovery Impact T1491.001 Defacement: Internal Defacement Impact T1583.003 Acquire Infrastructure: Virtual Private Server Resource Development T1608.001 Stage Capabilities: Upload Malware Resource Development T1112 Modify Registry Defense Impairment T1685 Disable or Modify Tools Defense Impairment T1686 Disable or Modify System Firewall Defense Impairment