Malicious PDF — malware analysis report

Static analysis result for SHA-256 b72f5c95d59f3d40…

MALICIOUS

PDF

40.4 KB Created: 2020-08-05 18:09:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5e1b5bad6eb911aaf5377c63a5353803 SHA-1: edd4d9f679361410f12e1f15cbce972783bee1af SHA-256: b72f5c95d59f3d400629fe7287b42dbea724036af31961a14c4a7cae468edba5
194 Risk Score

Malware Insights

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

The PDF contains a link disguised as information about Achilles tendonitis treatment, which redirects to a malicious URL. The document also functions as a link farm, embedding numerous external links, many of which point to Shopify domains. The primary malicious link is https://ttraff.com/pify?keyword=achilles+tendonitis+treatment+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=achilles+tendonitis+treatment+pdf In PDF document text
    • http://files.cpang-architects.com/uploads/1/3/1/3/131398144/5023264.pdfIn PDF document text
    • http://files.bcindivisible.org/uploads/1/3/0/7/130739772/tazatuxubile.pdfIn PDF document text
    • http://files.crazycowgirlentertainment.com/uploads/1/3/1/8/131856992/2c6307.pdfIn PDF document text
    • http://files.campervangoodies.co.uk/uploads/1/3/1/4/131452903/fulowipiduj.pdfIn PDF document text
    • http://files.khfreeman.com/uploads/1/3/2/3/132302870/310682.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/1/0434/4443/7144/files/gotalabubilig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9016/5403/files/79820155920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/16439200734.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4460/8920/files/sixofigumusetemen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5460/4198/files/74980741617.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7215/0947/files/52676029620.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1358/6600/files/xezoga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4610/0377/files/65294398384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4556/0219/files/wizib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3169/1421/files/77220847729.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_off000061ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61EA 5384 bytes
SHA-256: 56b08c4231626f520a41a4cc2e913e181aaba97d3cf3945a254a1ed88d3a1bd9
font_01_sfnt_off0000740e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x740E 9636 bytes
SHA-256: 05b88e9ce427a478cf9da82114b1c91a4ff390d62159514d61e2c8a2b4420e8d

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