Malicious PDF — malware analysis report

Static analysis result for SHA-256 274a8dc31100a7d4…

MALICIOUS

PDF

17.0 KB Created: 2020-11-04 13:47:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cd16937a2fb66919ffe9bf8c4d988893 SHA-1: 55e3141f8e631c8b443b57d2a15969abbf0c0cb1 SHA-256: 274a8dc31100a7d49d216401be1f5539fb538083285f3028c8e387c51e4f4f89
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to known malicious redirector infrastructure, specifically 'https://gettraff.ru/strik?keyword=every+plate+reviews+yelp'. This heuristic, combined with the ML classifier's high confidence, strongly suggests the document is designed to lure users to malicious sites. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9879

Heuristics 2

  • 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.
  • 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://gettraff.ru/strik?keyword=every+plate+reviews+yelp
    • https://wobafedufuj.weebly.com/uploads/1/3/4/0/134012960/sabilevap.pdf
    • https://cdn-cms.f-static.net/uploads/4375521/normal_5fa246a0b8b5d.pdf
    • https://popilezofale.weebly.com/uploads/1/3/1/1/131164236/3727659.pdf
    • https://cdn-cms.f-static.net/uploads/4378827/normal_5f8dd753d0912.pdf
    • https://uploads.strikinglycdn.com/files/09a8e18a-0ded-4c77-99df-8e86eaa7af5e/jokotijujepatofaku.pdf
    • https://uploads.strikinglycdn.com/files/4cd57a97-2af0-4243-b735-108a0aff0228/8357614771.pdf
    • https://uploads.strikinglycdn.com/files/b0422e79-5439-43d8-b718-e8f4c303e49e/glacier_bay_water_dispenser_top_load.pdf