Skip to content

Hide Navigation Hide TOC

Spearphishing Voice - T1566.004 (bb5e59c4-abe7-40c7-8196-e373cb1e5974)

Adversaries may use voice communications to ultimately gain access to victim systems. Spearphishing voice is a specific variant of spearphishing. It is different from other forms of spearphishing in that is employs the use of manipulating a user into providing access to systems through a phone call or other forms of voice communications. Spearphishing frequently involves social engineering techniques, such as posing as a trusted source (ex: Impersonation) and/or creating a sense of urgency or alarm for the recipient.

All forms of phishing are electronically delivered social engineering. In this scenario, adversaries are not directly sending malware to a victim vice relying on User Execution for delivery and execution. For example, victims may receive phishing messages that instruct them to call a phone number where they are directed to visit a malicious URL, download malware,(Citation: sygnia Luna Month)(Citation: CISA Remote Monitoring and Management Software) or install adversary-accessible remote management tools (Remote Access Software) onto their computer.(Citation: Unit42 Luna Moth)

Adversaries may also combine voice phishing with Multi-Factor Authentication Request Generation in order to trick users into divulging MFA credentials or accepting authentication prompts.(Citation: Proofpoint Vishing)

Cluster A Galaxy A Cluster B Galaxy B Level
Phishing - T1566 (a62a8db3-f23a-4d8f-afd6-9dbc77e7813b) Attack Pattern Spearphishing Voice - T1566.004 (bb5e59c4-abe7-40c7-8196-e373cb1e5974) Attack Pattern 1