Access to employees’ email accounts, and then pivoted to specifically target login information related to the processing of reimbursement payments to insurance companies, medicare, or similar entities.
To gain initial access to victim networks, the threat actor acquired credentials through social engineering or phishing. In some observed instances, the threat actor called an organization’s IT Help Desk posing as an employee of the organization, and triggered a password reset for the targeted employee’s organizational account [T1566.004]. In some instances, by manipulating the IT Help Desk employees, the threat actor was able to bypass multifactor authentication (MFA) [T1556.006]. In another instance, the threat actors registered a phishing domain [T1556.001] that varied by one character from the target organization’s true domain, and targeted the organization’s Chief Financial Officer (CFO) [TA1656].
Read more…
Source: U.S. Federal Bureau of Investigation Cyber Division
Related:
- Military leaders warn U.S. must prepare for cyber, infrastructure threat
June 16, 2023
The United States must immediately get ready for domestic, cyber-enabled attacks on critical domestic infrastructure and guard against foreign-initiated information operations targeted at the American people, according to speakers and panelists at an Association of the U.S. Army symposium on Wednesday in Arlington, Virginia. Mark Bristow, director of the Cyber Infrastructure Protection Innovation Center (CIPIC) at ...
- Ireland: Fresh cyber attack impacts HSE
June 9, 2023
The Health Service Executive (HSE) has been impacted by a fresh cyber attack. Work is ongoing to determine the impact on HSE data following the attack which has been as criminal in nature and international in scale. But no patient data is believed to have been accessed at this stage. Read more… Source: The Irish News
- Capita cyber-attack: 90 organisations report data breaches
May 30, 2023
About 90 organisations have reported breaches of personal information held by Capita after the outsourcing group suffered a cyber-attack, Britain’s data watchdog has said. The company, which runs crucial services for local councils, the military and the NHS, experienced the hack, which caused a significant IT outage, in March. Read more… Source: The Guardian
- MCNA Dental data breach impacts 8.9 million people after ransomware attack
May 29, 2023
Managed Care of North America (MCNA) Dental has published a data breach notification on its website, informing almost 9 million patients that their personal data were compromised. MCNA Dental is one of the largest government-sponsored (Medicaid and CHIP) dental care and oral health insurance providers in the U.S. Read more… Source: Bleeping Computer
- Hot Pixels attack checks CPU temp, power changes to steal data
May 27, 2023
A team of researchers at Georgia Tech, the University of Michigan, and Ruhr University Bochum have developed a novel attack called “Hot Pixels,” which can retrieve pixels from the content displayed in the target’s browser and infer the navigation history. The attack exploits data-dependent computation times on modern system-on-a-chip (SoCs) and graphics processing units (GPUs) and ...
- NHS data breach: trusts shared patient details with Facebook without consent
May 27, 2023
NHS trusts are sharing intimate details about patients’ medical conditions, appointments and treatments with Facebook without consent and despite promising never to do so. An Observer investigation has uncovered a covert tracking tool in the websites of 20 NHS trusts which has for years collected browsing information and shared it with the tech giant in a ...