Malicious PDF — malware analysis report

Static analysis result for SHA-256 fde5af0b5be5299b…

MALICIOUS

PDF

15.6 KB Created: 2020-11-06 12:55:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: efc83da17d5ec2ee674cdf3952023dbd SHA-1: a4767e15d6a25afc84df7e80a63a052fa6940304 SHA-256: fde5af0b5be5299b40058f1809101fd739907c8c6c82427cc658596be7f2cc38
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as malicious by an ML classifier and exhibits characteristics of a phishing lure, including an image-only design and a clickable action. The document contains multiple external links, with a primary focus on SEO spam or phishing through the URL `https://trafffe.ru/aws?keyword=k+mean+clustering+r`. The presence of embedded URIs suggests an attempt to redirect the user to malicious or spam content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

Heuristics 4

  • 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 15 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffe.ru/aws?keyword=k+mean+clustering+r
    • https://cdn-cms.f-static.net/uploads/4369508/normal_5fa18a0564cd6.pdf
    • https://cdn-cms.f-static.net/uploads/4420745/normal_5fa09279a9ee9.pdf
    • https://silepokow.weebly.com/uploads/1/3/4/3/134366863/96e0624.pdf
    • https://bidutujube.weebly.com/uploads/1/3/4/4/134403342/c02510f.pdf
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/85f5a0.pdf
    • https://zegojipoxe.weebly.com/uploads/1/3/1/0/131069766/813901.pdf
    • https://cdn-cms.f-static.net/uploads/4405639/normal_5f968910989eb.pdf
    • https://wurikosaradusif.weebly.com/uploads/1/3/1/3/131384544/lebuxuriladafuki.pdf
    • https://pabaxovazat.weebly.com/uploads/1/3/4/3/134323574/tozobeg.pdf
    • https://gumomamomav.weebly.com/uploads/1/3/1/3/131398069/351def06.pdf
    • https://jedunaxalow.weebly.com/uploads/1/3/1/6/131606453/dagosijirajo.pdf
    • https://zoseruvabu.weebly.com/uploads/1/3/4/4/134492528/pepuvut_zeruz.pdf
    • https://wosezobar.weebly.com/uploads/1/3/1/8/131856012/difipel-fubibopizabo.pdf
    • https://xodalolekuxol.weebly.com/uploads/1/3/4/1/134108590/7825d95e0431b.pdf
    • https://cdn.shopify.com/s/files/1/0500/0449/2438/files/yoga_sutras_of_patanjali_in_telugu.pdf

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