Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f8d10b496f73f6a…

MALICIOUS

PDF

42.4 KB Created: 2020-08-19 13:47:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fb544bfa058f247ab28909da522929f5 SHA-1: 8dbcd9cc6e694d2b13e47fcb420d7fc99cb5dccb SHA-256: 2f8d10b496f73f6a4004c0647c5937a305eac7b7fd5c950e72f7a820841ce937
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to Shopify-hosted PDFs, which is characteristic of a link farm. One of these links redirects to `https://ttraff.com/pify?keyword=printable+calendar+word+template`, a known malicious redirector. This suggests the document is designed to lure users to malicious infrastructure, likely for further exploitation or phishing. The ML classifier also strongly indicated maliciousness.

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=printable+calendar+word+template In PDF document text
    • http://files.jaildogs.org/uploads/1/3/1/4/131406950/77974.pdfIn PDF document text
    • http://files.atthehelmbluffton.com/uploads/1/3/0/9/130969986/xepanenulotakew-vekijimemun.pdfIn PDF document text
    • http://migezu.pwcyoga.com/uploads/1/3/0/8/130813834/0584f65.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/1/0432/0657/4238/files/xamutitavanajirizek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7931/0239/files/borderlands_3_guardian_tokens.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5080/3099/files/66855469543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8353/8331/files/71095814070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3119/7856/files/cambridge_english_for_engineering.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3749/7243/files/welifogeriferamamakuzevag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0384/4520/files/sovebanedinevopale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3391/9645/files/26955496510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5915/1009/files/housie_tickets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6689/2191/files/81035465594.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_off0000687e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x687E 5272 bytes
SHA-256: 07f28311d6a643c14432215fe5d10b56bf973ab83033d15c176b426ca63d9525
font_01_sfnt_off00007a55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A55 10120 bytes
SHA-256: 6d8f9b2202bece2996560b564682f24e0eec6161a877d6d68c01a1de2b092133

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