WhatsApp Breach Incident Score: Analysis & Impact (GENWHA1773052486)

In this Rankiteo incident briefing, we review the WhatsApp breach identified under incident ID GENWHA1773052486.

The analysis begins with a detailed overview of WhatsApp's information like the linkedin page: https://www.linkedin.com/company/whatsapp., the number of followers: 326578, the industry type: Software Development and the number of employees: 3683 employees

After the initial compromise, the video explains how Rankiteo's incident engine converts technical details into a normalized incident score. The incident score before the incident was 681 and after the incident was 663 with a difference of -18 which is could be a good indicator of the severity and impact of the incident.

In the next step of the video, we will analyze in more details the incident and the impact it had on WhatsApp and their customers.

On 09 March 2024, Dutch government employees disclosed Cyber Espionage issues under the banner "Russian-Backed Hackers Target Signal and WhatsApp Accounts of Officials and Journalists".

Dutch intelligence agencies revealed that Russian-backed hackers launched a global cyber campaign to infiltrate Signal and WhatsApp accounts belonging to government officials, military personnel, and journalists.

The disruption is felt across the environment, affecting Signal and WhatsApp accounts, and exposing Classified information, personal accounts, sensitive group conversations.

In response, moved swiftly to contain the threat with measures like Dutch authorities issued a cyber advisory to mitigate the threat, and began remediation that includes Advising users against sharing their six-digit codes, and stakeholders are being briefed through Public disclosure by Dutch intelligence agencies.

The case underscores how Ongoing, teams are taking away lessons such as Even encrypted apps should not be used for transmitting highly sensitive information due to persistent social engineering risks, and recommending next steps like Avoid sharing security verification codes or PINs, monitor for signs of compromise (e.g., duplicate contacts or 'deleted' accounts), and follow cyber advisories from authorities, with advisories going out to stakeholders covering Dutch intelligence agencies issued a cyber advisory to mitigate the threat.

Finally, we try to match the incident with the MITRE ATT&CK framework to see if there is any correlation between the incident and the MITRE ATT&CK framework.

The MITRE ATT&CK framework is a knowledge base of techniques and sub-techniques that are used to describe the tactics and procedures of cyber adversaries. It is a powerful tool for understanding the threat landscape and for developing effective defense strategies.

Rankiteo's analysis has identified several MITRE ATT&CK tactics and techniques associated with this incident, each with varying levels of confidence based on available evidence. Under the Initial Access tactic, the analysis identified Phishing: Spearphishing via Service (T1566.003) with high confidence (90%), supported by evidence indicating trick users into disclosing security verification codes or PINs during deceptive chats. Under the Credential Access tactic, the analysis identified Adversary-in-the-Middle: Man-in-the-Middle (T1557.003) with moderate to high confidence (80%), supported by evidence indicating impersonate a Signal Support chatbot to extract verification codes and Brute Force: Password Guessing (T1110.001) with moderate to high confidence (70%), supported by evidence indicating trick users into disclosing security verification codes or PINs. Under the Persistence tactic, the analysis identified Account Manipulation: SSH Authorized Keys (T1098.004) with moderate to high confidence (70%), supported by evidence indicating exploiting Signal’s linked devices feature. Under the Collection tactic, the analysis identified Email Collection: Remote Email Collection (T1114.002) with moderate to high confidence (80%), supported by evidence indicating access to personal accounts and sensitive group conversations and Data from Information Repositories: Sharepoint (T1213.002) with moderate confidence (60%), supported by evidence indicating classified information, personal accounts, sensitive group conversations. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (80%), supported by evidence indicating hackers likely obtained classified information. Under the Defense Evasion tactic, the analysis identified Modify Authentication Process: Multi-Factor Authentication (T1556.003) with moderate to high confidence (70%), supported by evidence indicating trick users into disclosing security verification codes or PINs. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.