Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ef1e84a3d58be01…

MALICIOUS

PDF

66.6 KB Created: 2020-08-05 14:10:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cd24ca350f97234b2e7a57a881d2d5e2 SHA-1: b57c5366d6962d10b19a8f83bfa450a4e4b324a9 SHA-256: 0ef1e84a3d58be011bc0b73f0b70515aa6f0102989e27d1a173e1fa5de5a45c6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links designed to appear as legitimate document downloads, but they redirect to a malicious domain (ttraff.com). This indicates a phishing or scam attempt, likely using a link farm to improve search engine visibility for malicious content. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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 lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ttraff.com/pify?keyword=the+origins+of+ventricular+arrhythmias+pdf In PDF document text
    • http://files.neuquabadminton.com/uploads/1/3/0/8/130874477/805cc1cb3039.pdfIn PDF document text
    • http://files.kcorneliusimagesandmarketing.com/uploads/1/3/1/6/131637273/6192374.pdfIn PDF document text
    • http://wisevad.yacfoundation.org/uploads/1/3/0/8/130813420/eb7e56f891.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4492/0726/files/sasamenijujopup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8158/0200/files/wewazuboto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5492/3925/files/tubafazem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1321/8199/files/71519182442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/0922/5382/files/acupressure_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3407/4523/files/rubugemezojanivudijebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8589/7627/files/vuwakirutugufukozutixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5769/3347/files/66826721182.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9692/3543/files/wejaguwuxabomawaxoda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1000/6940/files/29257385500.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8917/4432/files/fidizakimojaduwivudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9812/9059/files/59184782561.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c5f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5F9 5680 bytes
SHA-256: 49b3607026e555e0621869cfd57b80741582dfdd36add4cee84b12353fb71ee6
font_01_sfnt_off0000d93c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD93C 10592 bytes
SHA-256: 9ef08f2982d9725209d5218e6f48753b71145728c492fdd2273248afbc01d395

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