Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8bd313f62f40e8f…

MALICIOUS

PDF

16.9 KB Created: 2019-04-30 04:16:38 +01:00 Authoring application: mPDF 5.7
MD5: b10cbfe7e709845a09da297a30d01b74 SHA-1: e5e3adb5a5db75cce0d72a8cb6f1d26bca2e1276 SHA-256: b8bd313f62f40e8fccd69d4c1c9425dbf0c02658cdf16205bec79056bccd7434
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, all hosted on the same domain. This technique is often used to distribute malicious content or to engage in SEO manipulation for malicious purposes. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the suspicious link structure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://loaminoo.linkpc.net/6095095091093/Dave-Barry-s-Complete-Guide-to-Guys-by-Dave-Barry.pdf
    • http://loaminoo.linkpc.net/3094099091091090/Live-Right-and-Find-Happiness-Although-Beer-is-Much-Faster-Life-Lessons-and-Other-Ravings-from-Dave-Barry-by-Dave-Barry.pdf
    • http://loaminoo.linkpc.net/2098095096093097/Dave-Barry-s-Only-Travel-Guide-You-ll-Ever-Need-by-Dave-Barry.pdf
    • http://loaminoo.linkpc.net/3098095097098097/Dave-Barry-s-Money-Secrets-Like-Why-Is-There-a-Giant-Eyeball-on-the-Dollar-by-Dave-Barry.pdf
    • http://loaminoo.linkpc.net/1090094098096/I-ll-Mature-When-I-m-Dead-Dave-Barry-s-Amazing-Tales-of-Adulthood-by-Dave-Barry.pdf
    • http://loaminoo.linkpc.net/2099095093093093/Dave-Barry-Hits-Below-the-Beltway-by-Dave-Barry.pdf
    • http://loaminoo.linkpc.net/3099091097090090/More-of-Dave-Barry-s-Greatest-Hits-by-Dave-Barry.pdf
    • http://loaminoo.linkpc.net/2099093090096097/Dave-Barry-Turns-Forty-by-Dave-Barry.pdf
    • http://loaminoo.linkpc.net/2096095095098092/Big-Trouble-by-Dave-Barry.pdf
    • http://loaminoo.linkpc.net/1098095096095098/Big-Trouble-by-Dave-Barry.pdf
    • http://loaminoo.linkpc.net/3092094098092097/Peter-and-the-Starcatchers-by-Dave-Barry.pdf
    • http://loaminoo.linkpc.net/2090094099091091/Blood-Tide-Never-Land-3-by-Dave-Barry.pdf
    • http://loaminoo.linkpc.net/1098091092096097/Escape-from-the-Carnivale-Never-Land-Books-1-by-Dave-Barry.pdf
    • http://loaminoo.linkpc.net/4091094097/Best-State-Ever-A-Florida-Man-Defends-His-Homeland-by-Dave-Barry.pdf
    • http://loaminoo.linkpc.net/3098094095090090/The-Shepherd-the-Angel-and-Walter-the-Christmas-Miracle-Dog-by-Dave-Barry.pdf
    • http://loaminoo.linkpc.net/2097099097090098/Lessons-From-Lucy-The-Simple-Joys-of-an-Old-Happy-Dog-by-Dave-Barry.pdf
    • http://loaminoo.linkpc.net/3096091094090/Peter-and-the-Shadow-Thieves-Peter-and-the-Starcatchers-2-by-Dave-Barry.pdf
    • http://loaminoo.linkpc.net/1098091090091096/Peter-and-the-Shadow-Thieves-Peter-and-the-Starcatchers-2-by-Dave-Barry.pdf
    • http://loaminoo.linkpc.net/1090091094092093095/Barry-Maitland-Books-2017-Checklist-Reading-Order-of-Brock-and-Kolla-Mysteries-The-Belltree-Trilogy-and-List-of-All-Barry-Maitland-Books-by-Sorted-Guide.pdf
    • http://loaminoo.linkpc.net/7098091093098092/Dave-s-Dinners-A-Fresh-Approach-to-Home-Cooked-Meals-by-Dave-Lieberman.pdf
    • http://loaminoo.linkpc.net/2099093090096097/Dave-Barry-Tur

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