Фишинг
Sub-techniques (4)
Adversaries may send phishing messages to gain access to victim systems. All forms of phishing are electronically delivered social engineering. Phishing can be targeted, known as spearphishing. In spearphishing, a specific individual, company, or industry will be targeted by the adversary. More generally, adversaries can conduct non-targeted phishing, such as in mass malware spam campaigns. Adversaries may send victims emails containing malicious attachments or links, typically to execute malicious code on victim systems. Phishing may also be conducted via third-party services, like social media platforms. Phishing may also involve social engineering techniques, such as posing as a trusted source, as well as evasive techniques such as removing or manipulating emails or metadata/headers from compromised accounts being abused to send messages (e.g., Email Hiding Rules).(Citation: Microsoft OAuth Spam 2022)(Citation: Palo Alto Unit 42 VBA Infostealer 2014) Another way to accomplish this is by forging or spoofing(Citation: Proofpoint-spoof) the identity of the sender which can be used to fool both the human recipient as well as automated security tools,(Citation: cyberproof-double-bounce) or by including the intended target as a party to an existing email thread that includes malicious files or links (i.e., "thread hijacking").(Citation: phishing-krebs) Victims may also 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 onto their computer (i.e., User Execution).(Citation: Unit42 Luna Moth)
Примеры процедур |
|
Название | Описание |
---|---|
Hikit |
Hikit has been spread through spear phishing.(Citation: Novetta-Axiom) |
INC Ransomware |
INC Ransomware campaigns have used spearphishing emails for initial access.(Citation: SentinelOne INC Ransomware) |
INC Ransom |
INC Ransom has used phishing to gain initial access.(Citation: SOCRadar INC Ransom January 2024)(Citation: SentinelOne INC Ransomware) |
Dragonfly |
Dragonfly has used spearphising campaigns to gain access to victims.(Citation: Secureworks IRON LIBERTY July 2019) |
Axiom |
Axiom has used spear phishing to initially compromise victims.(Citation: Cisco Group 72)(Citation: Novetta-Axiom) |
Royal |
Royal has been spread through the use of phishing campaigns including "call back phishing" where victims are lured into calling a number provided through email.(Citation: Cybereason Royal December 2022)(Citation: Kroll Royal Deep Dive February 2023)(Citation: CISA Royal AA23-061A March 2023) |
GOLD SOUTHFIELD |
GOLD SOUTHFIELD has conducted malicious spam (malspam) campaigns to gain access to victim's machines.(Citation: Secureworks REvil September 2019) |
Контрмеры |
|
Контрмера | Описание |
---|---|
Audit |
Perform audits or scans of systems, permissions, insecure software, insecure configurations, etc. to identify potential weaknesses. |
Network Intrusion Prevention |
Use intrusion detection signatures to block traffic at network boundaries. |
Software Configuration |
Implement configuration changes to software (other than the operating system) to mitigate security risks associated to how the software operates. |
Restrict Web-Based Content |
Restrict use of certain websites, block downloads/attachments, block Javascript, restrict browser extensions, etc. |
Antivirus/Antimalware |
Use signatures or heuristics to detect malicious software. |
User Training |
Train users to be aware of access or manipulation attempts by an adversary to reduce the risk of successful spearphishing, social engineering, and other techniques that involve user interaction. |
Обнаружение
Network intrusion detection systems and email gateways can be used to detect phishing with malicious attachments in transit. Detonation chambers may also be used to identify malicious attachments. Solutions can be signature and behavior based, but adversaries may construct attachments in a way to avoid these systems. Filtering based on DKIM+SPF or header analysis can help detect when the email sender is spoofed.(Citation: Microsoft Anti Spoofing)(Citation: ACSC Email Spoofing) URL inspection within email (including expanding shortened links) can help detect links leading to known malicious sites. Detonation chambers can be used to detect these links and either automatically go to these sites to determine if they're potentially malicious, or wait and capture the content if a user visits the link. Because most common third-party services used for phishing via service leverage TLS encryption, SSL/TLS inspection is generally required to detect the initial communication/delivery. With SSL/TLS inspection intrusion detection signatures or other security gateway appliances may be able to detect malware. Anti-virus can potentially detect malicious documents and files that are downloaded on the user's computer. Many possible detections of follow-on behavior may take place once User Execution occurs.
Ссылки
- Secureworks. (2019, July 24). Resurgent Iron Liberty Targeting Energy Sector. Retrieved August 12, 2020.
- Vicky Ray and Rob Downs. (2014, October 29). Examining a VBA-Initiated Infostealer Campaign. Retrieved March 13, 2023.
- Proofpoint. (n.d.). What Is Email Spoofing?. Retrieved February 24, 2023.
- Oren Biderman, Tomer Lahiyani, Noam Lifshitz, Ori Porag. (n.d.). LUNA MOTH: THE THREAT ACTORS BEHIND RECENT FALSE SUBSCRIPTION SCAMS. Retrieved February 2, 2023.
- Microsoft. (2023, September 22). Malicious OAuth applications abuse cloud email services to spread spam. Retrieved March 13, 2023.
- Microsoft. (2020, October 13). Anti-spoofing protection in EOP. Retrieved October 19, 2020.
- Kristopher Russo. (n.d.). Luna Moth Callback Phishing Campaign. Retrieved February 2, 2023.
- Itkin, Liora. (2022, September 1). Double-bounced attacks with email spoofing . Retrieved February 24, 2023.
- CISA. (n.d.). Protecting Against Malicious Use of Remote Monitoring and Management Software. Retrieved February 2, 2023.
- Brian Krebs. (2024, March 28). Thread Hijacking: Phishes That Prey on Your Curiosity. Retrieved September 27, 2024.
- Australian Cyber Security Centre. (2012, December). Mitigating Spoofed Emails Using Sender Policy Framework. Retrieved October 19, 2020.
- Novetta. (n.d.). Operation SMN: Axiom Threat Actor Group Report. Retrieved November 12, 2014.
- SentinelOne. (n.d.). What Is Inc. Ransomware?. Retrieved June 5, 2024.
- SOCRadar. (2024, January 24). Dark Web Profile: INC Ransom. Retrieved June 5, 2024.
- Esler, J., Lee, M., and Williams, C. (2014, October 14). Threat Spotlight: Group 72. Retrieved January 14, 2016.
- Iacono, L. and Green, S. (2023, February 13). Royal Ransomware Deep Dive. Retrieved March 30, 2023.
- Cybereason Global SOC and Cybereason Security Research Teams. (2022, December 14). Royal Rumble: Analysis of Royal Ransomware. Retrieved March 30, 2023.
- CISA. (2023, March 2). #StopRansomware: Royal Ransomware. Retrieved March 31, 2023.
- Counter Threat Unit Research Team. (2019, September 24). REvil/Sodinokibi Ransomware. Retrieved August 4, 2020.
Связанные риски
Каталоги
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