Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ecdf7d427840e19…

MALICIOUS

PDF

43.2 KB Created: 2020-08-07 09:49:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bbd2753ea136b94c69eb16a78df26141 SHA-1: 58a76b2e69b21e8367b79cee55a7313f3ff9a119 SHA-256: 6ecdf7d427840e197ddbc16a14b701e3c8841cb8793bab2c39f6dfe49181a176
194 Risk Score

Malware Insights

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

This PDF document contains multiple links, including one to a known malicious redirector, ttraff.com. The document body and embedded links suggest a lure for users to download what appears to be a tutorial PDF, but likely leads to malicious content. The ML classifier strongly indicated maliciousness, and the presence of numerous external links, many pointing to Shopify domains, indicates a link farm or SEO manipulation tactic to distribute the malicious redirector.

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=xamarin+android+app+tutorial+pdf In PDF document text
    • http://files.unnatilok.com/uploads/1/3/1/8/131871994/dodojozo.pdfIn PDF document text
    • http://files.gumbeerfest.co.uk/uploads/1/3/1/1/131163712/ad7d6335.pdfIn PDF document text
    • http://files.teamzoecancersucks.com/uploads/1/3/1/3/131383892/jagadawuwune.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/1/0433/1533/1227/files/jotatew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8921/5129/files/favagupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2553/8980/files/pebibikirefope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5398/1594/files/stone_sword_minecraft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuxovozukirofavekejob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8393/2582/files/45860295701.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4675/4714/files/latex_beamer_include_slides.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3873/5517/files/ubuntu_12._04_sources._list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/39738284996.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/4202/6150/files/gigaware_usb_to_serial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7153/6285/files/xitixobuwoduvapopel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8792/8223/files/cardiology_textbook_free.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 8

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_off000060b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60B8 4984 bytes
SHA-256: a72aa95e5233212454e0c7c416178a2dbc4bb8c65b45d04f0682ce5b8387fcf6
font_01_sfnt_off00007194.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7194 14792 bytes
SHA-256: 7b84076037aada09435d93063f37320b02014f316a9db91ef36632529cf545cb

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