Malicious PDF — malware analysis report

Static analysis result for SHA-256 0017400313351e34…

MALICIOUS

PDF

12.3 KB Created: 2020-10-05 17:17:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e52974502b7305d1b50a69dbfb4b72b5 SHA-1: 5af94f1b6cf3f8e571df784f93631673e4ee06a0 SHA-256: 0017400313351e34a935e412083b90c156b7a09e705ef9ab7d4923128c9344ef
172 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF is identified as a malicious redirector and a link farm, containing numerous links to external PDF files. The primary malicious link, https://ggtraff.ru/strik?keyword=bealls+outlet+stores+routing+guide, is likely used to redirect the user to a phishing page or to download a secondary payload. The document's small size and image-only nature, as indicated by the PDF_IMAGE_LURE heuristic, further suggest it's designed as a deceptive lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9963

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 12 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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 https://ggtraff.ru/strik?keyword=bealls+outlet+stores+routing+guide
    • http://files.johnnyhayes.net/uploads/1/3/0/7/130738928/nitixi-teril-wefazupodejow-vibino.pdf
    • http://xalurin.tnnme.com/uploads/1/3/2/7/132740478/3836077.pdf
    • http://toguxa.wendyrobinsonwow.com/uploads/1/3/2/6/132681352/42e684fcee.pdf
    • http://files.trailblazersunit.com/uploads/1/3/0/7/130739756/226818.pdf
    • http://files.drreyespulm.com/uploads/1/3/1/3/131398059/8487587.pdf
    • https://site-1037848.mozfiles.com/files/1037848/fudofuretofarexamijisek.pdf
    • https://cdn.shopify.com/s/files/1/0431/0866/3456/files/kaiser_open_enrollment_2020_deadline.pdf
    • https://cdn.shopify.com/s/files/1/0485/9641/8720/files/28455170650.pdf
    • https://cdn.shopify.com/s/files/1/0431/0378/1013/files/amc_orange_park_mall_ticket_prices.pdf
    • https://cdn.shopify.com/s/files/1/0483/0219/4849/files/ffxiv_culinarian_guide_1-50.pdf
    • https://cdn.shopify.com/s/files/1/0483/8624/4757/files/oceanic_oceanic_convergent_boundary_example_in_real_life.pdf

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