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Malvertizing Like a PRO
- 1. Malvertizing Like a PRO A JUMP INTO THE NEWEST ATTACK VECTOR TAKING IT TO THE NEXT LEVEL
- 2. Introduction • Pen-Tester with Veris Group • Previous ARMY • How to find me: • @Killswitch_GUI • CyberSyndicates.com
- 3. Warning! What I'm not: A SME in Malware or Reverse Engineering Part of a Cyber Crime ring performing this everyday What this is: My take on Ad based malware My journey on how I would execute it Pure speculation of what's open source What we will cover Ad Based Malware Touch of OSINT My Campaign Methods and Failure ALL DATA Collected using Open Source methods
- 4. Overview Forming an attack based on Strategic Malvertising using targeting principles What is Malvertising What's Malvertising vs Strategic Malvertising What makes this so important ( What don't I already know) Potential methods it can be used to conduct social engineering How to target specific completely unknown, specific individuals within a demographic group? How effective it is and is it worth the resources required?
- 5. Current Malware Trends Phishing still effective Major increase in Ad Delivery - 350% Secondary and Trusted C2 being used (Covert C2) Duke / Cloud Duke Toolsets Twitter / OneDrive / Cloud Storage Web Exploit Kits from years ago still working C2 is becoming difficult to detect Out of Band Communications Implied Trust (WE WILL COVER THIS) Notable Cases : APT 29: HAMERTOSS Flash Zero Day Ad Based
- 6. Talking money Delivering malware to generate AD traffic Text / HTML AD’s Video AD’$ Delivering Randsomware Crypto Legit Business cost publishers more than $21.8 billion in 2015 in lost revenue
- 8. What is Malvertizing? It is the use and abuse of Ad services for attackers to deliver malicious content, using ad service providers vast network of audience. They can leverage this legitimate function to distribute their malware. Many forms of malware based ad-ware attacks exist Compromised Ad-Companies Impersonation of legitimate companies Malware being hosted in AD’s Legitimate Targeted campaigns
- 9. Core Fundamentals Major players Google Facebook* Microsoft Main Types of Delivery methods Social media marketing Sponsored search Compensation methods CPM (cost per mille) CPE (cost per engagement) CPC (cost per click) CPV (cost per view)
- 10. Core Fundamentals Cont. Ease of deployment (availability) The targeting platform Is already built Benefits of Web Ad’s: Cost – There is a reason why AD profits are in the Billions Measurable – Powerful analytics and cross platform support is built Targeted?
- 11. Big Data Analytics Analytical engines at your finger tips Broad – Zip code Specific – Job title Extremely Accurate Most Ad-Delivery systems display potential reach Target research methods We give our data away for free..
- 12. Malvertizing in the Wild AD injection: Exploitation of routers and redirecting DNS Attacker can simply redirect normal AD traffic query's and place their AD in play This has been used to replace Google analytics JS code and ADs Passive Collection of AD data capabilities of Ad / Tracking This data can be sold or used for other Intelligence Collection Campaign's Canadian ISP was caught MITM in 2014 stealing data from HTTP AD traffic
- 13. Malvertizing in the Wild Exploit within AD traffic: Using obfuscated flash exploits attacks are able to launch exploits from legit AD’s Exploit AD Companies: Campaign is put in motion after gaining access to AD serving organization Redirects traffic to Exploit Kit Drop Exploit Kit of choice: Angler etc. Begins Click Fraud activity
- 14. Malvertizing in the Wild AD Fraud Exploit Kits: Increasing dramatically! Powelike’s: later versions sported Ad-Clicking Component Kovter: Evolved from stand alone to fully deployable with other exploit kits like Angler, Nuclear Pack Allows for even Flash based Video Ads to be played for high ROI
- 15. Blue Team / Defenders So why should I care? Online attack surface has greatly reduced Phishing is still Hot! Circumventing millions in security: email / Phishing With that comes every vendor in the sector with: Sandbox appliances Content Filtering Spam Filters Delivery method is trusted: Do you block Twitter / Facebook / Google? Reputable sites? AD Delivery / C2 Chanel all on one platform Good luck finding that
- 16. Systematic problem Why it isn’t a Script Kiddy solution Why it has to be funded.. It takes money to make money ROI - It makes more money than put in? Implied Trust of many Ad-Agency’s and sites using their services
- 17. My take on AD Delivery
- 18. My Methodology / Target Selection Demographic Nomination Target Selection SE/OSINT Research Campaign Development Reputation Development Deployment
- 20. Calculating Reach Reach is an important factor of targeting Gives you a metric to calculate potential demographic Need to judge a organizations size / Facility Activity / increases or presence? Employees Geographical location Important concept for OSINT Will I even have impact?
- 21. Recon / Sampling reach
- 22. Selecting a Sample Cont.
- 23. OSINT Open Source Intelligence Collection Applications Used in many types of operations Penetration Testing Physical Assessments Targeting Levels: Physical - Things we can touch and see Logical - Things over the wire Individual- Persona Layer / Exploiting the nature of Humans
- 24. Questions that Need to Asked What time frame will be effective? Work Hours: After Hours: What System will I be targeting to reach my target audience Mobile Platform: We may even be able to target exact OS Desktop OS Laptop Users traveling? May not be patched for a short period of time
- 25. Need to deliver based on schedule? No Prob!
- 26. Exploit only works on XP or exact OS, on IE ? No Prob!
- 27. Mobile Exploit? Certain Mobile OS? By Brand?
- 28. Exact mobile brand? Exact Model!? Yea this is scary granularity!
- 29. Power of Big Data Targeting Small Meta-Data that is data… WIGLE WIGLE + compromised Host = Potential Geographical location Orientate an attacker Can be done with so many methods… Query registry for past locations Ability to build a timeline (Forensic Capability) Social-Mention HONEY BADGER – Tim Tomes
- 30. Power of OSINT ICWATCH: https://transparencytoolkit.org https://github.com/transparencytoolkit
- 31. Don’t Suggest that but..
- 32. Think Nation State? “Hacking Team” - Beat a dead horse anyone? De Anonomonyzing Location based on WLAN interface Un-Cloaking physical Locations
- 33. Offensive Targeting Imagine a world where you could deploy your malware only to people: Making 100k+ Work for: “fill in agency here”? More advanced campaigns being deployed? Crime Collection Could support the IC effort of many countries Getting into deep water..
- 34. Traditional Targeting Phishing Campaigns –Social Engineering for *clicks*
- 35. Phishing Very Common / Known Methodology Very successful on engagements This Same principle is how I created AD’s Changing surface / Constraint of phishing Lack ability to pin point demographics The days of dumping every user in directory using ( * ) may be gone Training increased / Trust has decreased in email TONS OF APPLIANCES protecting email! SPF Records / Correctly configured Mail servers verifying multiple fields of mail
- 36. Combined with a touch of SE Same principles as Phishing Move over Trending Results using Facebook Selecting SE topic Using topic
- 37. That SEO thing Another Great SE technique to get a campaign off the ground Another important aspect to SE or Any Targeting. You wouldn't’t launch a Phishing Campaign saying your Marketing coming from it-support.net Using SEO Tools to build (BUY): Instant Reputation Instant Legitimacy I attempted this but sadly during testing FB cracked down!
- 38. What this means I can now target at a: Physical Layer Logical Layer I can correlate targets Using Demographics Location Jobs / workplace / salary etc.
- 40. Setup Domain Name (Something Reliable) VPS (Hosting) / Apache Vhost’s / Static Content Analytics (Google-Analytics) Ad Campaign (Facebook) $20 a campaign A good idea to SE
- 41. SE AD Targets Augusta, GA – Broad Target AD Any one in 25mi Range Augusta, GA – Targeted Demographic AD Any one in 25mi Range Employer Specific Time Range AD Types: Web-Site clicks Post Promotion
- 42. Setup Analytics
- 43. Building a Relevant Page Targets: Augusta, GA Target Demographic: Cyber / Location Based
- 44. Building AD #1 – Broad Target Select Control : How do I get them to take notice? Tag-Line : Needed to be something Impactful Deceiving: Had to be Believable but wont deliver 100% truth. Enticing Image: Most important Aspect, everyone loves images
- 45. Build out Clone Site Used Httrack for cloning of legit Data.. FB has too catch this!
- 46. Build out Config Left these for testing their “Review” Put in some Meta Tags for Picture Population Removed all the original Google Tracking JS so we don’t pop up under their account.
- 47. Ad #1 Videos are very successful marketing tools Can be easy wins
- 48. AD #1 – Not so fast They actually enforce some polices I found out :/
- 49. AD #1 Cont.
- 50. AD #1 Setup
- 52. AD #1 Optimization cont.
- 54. AD #2 – Targeted Demographics Selected Topic / Control: Certain location “Fort Gordon” Target: How do I get them to take notice? Tag-Line : Home Values “I may have some inside knowledge” Hint: Its about what a ton of people talk about in this area. Deceiving: Large Increase coming! Target Details Matter for Accuracy: Life Style Devices / Platform Work hours
- 56. Website? Lets test that review process: Submit a simple WordPress page with a embedded video. Than remove for the duration of the test Host a simple index.html with JS for GA Questions that should be asked and how the relate to malware: Will they detect this major change? Can some one even report a shady link? How long will it stay up?
- 58. AD #2 Configurations / AD Placement
- 59. AD #1 Analytics
- 60. Drilling Down on Geo GA makes Geographic analytics streamlined and Accurate down to the city 25 mi range on Augusta, GA seems pretty accurate!
- 61. Service Providers Makes tracking specific targets quite helpful Tracking user agents in GA is simple
- 62. AD #2 Analytics - Web Clicks
- 63. Geographic Stats
- 64. (not set)
- 65. Am I really Hitting my Target? Geographically its easy to say “YES” Accurate GEOIP API services by google What about Demographic: Harder to determine true accuracy Service Providers can be a major Identifier if they use a certain ISP or have their own! Page Interaction can be a HUGE identifier Likes Comments
- 66. Am I really Hitting my Target? (not set) Found 95 sessions of 273 to be (not Set) as the ISP… Could this be proper filtering / Ammonization? Take the time and verify your results Also always resolve domain name! This data was reassuring that I was on the right track
- 67. Am I really Hitting my Target cont. Facebook Likes / Comments: Helps performs post analysis of the target audience All 8x likes where affiliated with my target audience.
- 68. Putting it in Context One guy with limited funds and some time Conducted 2 Ad campaigns Each campaign took 6 hours from OSINT to Delivery Each campaign ran one week at $20 each Campaign 1 had 143 engagements, 2k reach Campaign 2 had 219 engagements, 3k reach Calculation: Well funded group with 10k budget for a campaign and 160 hours. On avg .09 cents per unique engagement Potential = 26 unique AD’s , 111,111 Engagements, and 1.5M Reach! I would consider this extremely effective mean of a targeted campaign.
- 69. Major Findings Review process is a joke: Couldn’t detect a clearly cloned website by static HTML source The cloned website still had complete favicon / logos / static source of the cloned website Do they even scan for malware? Continued monitoring Set up a page and immediately removed it and replaced with a simple index.html page with JS Ran for one week and didn't’t raise one flag? I can simply submit an ad and host malware 10 mins latter?
- 70. Are Ad-Agency’s protecting us Google Moving to Encrypted Ads June 30th Only Protects Ad injection at the network layer (Compromised Routers) Facebook RiskIQ - monitoring advertising pages to protect users from malicious ads Interesting collegial research on detecting cloned pages
- 71. Getting The Most out a Campaign Tip’s Proper recon is crucial Proper SE campaign must be relevant with your target. Holistic view of an ad: How do I view ad’s as a user? What do I click on and what do I not? Videos / Posts / News CPC Compensation
- 73. Twitter How I Hate you Rule one: Don’t buy bots and get caught in the Sec industry @jaredcatkinson
- 74. Lessons Learned Twitter is a news source not so much of a social source. Although they have just as powerful analytic engines when it comes to AD delivery Scary Easy to run a simple yet targeted campaign with relatively accurate results • Big shout out to: • @Slacker007 – keelyn roberts • @Hashtagcyber – Matt Domko
Notes de l'éditeur
- Question: What if I want to keep tabs on movements, increases and activity of facility?
- OSINTForm of intelligence collection management that involves finding, selecting, and acquiring information from publicly available sources and analyzing it to produce actionable intelligence
- I want to target work resources? (9 to 5) Remote / Home Users will be out of patch?
- -Make your own assumptions -Kept it Wide!!