Malicious PDF — malware analysis report

Static analysis result for SHA-256 26bd1ec0c40d24d7…

MALICIOUS

PDF

48.7 KB Created: 2020-08-06 07:37:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a37b122510f3cdbe0a8e9a540adc3f70 SHA-1: 6ede8dbb12e379e24e4695ada9220b3c4aa8464a SHA-256: 26bd1ec0c40d24d7a4949a5963950443f82053b3fde3fe57c67a13016fc503ab
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 benign content on Shopify, but one critical link directs to a known malicious redirector at ttraff.com. This suggests a link farm or SEO poisoning tactic designed to lure users to malicious infrastructure. The document body, though partially corrupted, contains the title 'Paula isabel allende pdf español' and references 'wkhtmltopdf', indicating it was likely generated to appear as a legitimate document, masking the malicious intent of the embedded links.

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=paula+isabel+allende+pdf+espa%25C3%25B1ol In PDF document text
    • http://files.southernprovisionsfw.com/uploads/1/3/1/4/131453188/058fa.pdfIn PDF document text
    • http://files.myolddesignjet.com/uploads/1/3/1/4/131437775/1476312.pdfIn PDF document text
    • http://files.blocklakecabins.com/uploads/1/3/2/6/132681617/7108461.pdfIn PDF document text
    • http://files.crimsonsoccer.us/uploads/1/3/1/8/131856430/22e30e2834.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/1/0433/4921/3349/files/agriculture_in_east_africa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/41707809853.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9513/8208/files/potubagibedo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1595/4855/files/4373296266.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1829/7245/files/wexokokomiratixuvaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2502/2621/files/64262948420.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0778/6651/files/gajanupuzuroxukiganogub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4737/7301/files/ximanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0843/4077/files/52391371818.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5699/6247/files/91069785368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7895/8758/files/bebetapijeresik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2729/1544/files/tasuretejufurunixupet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9672/7962/files/1849403129.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 4

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_off00007eb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EB7 5292 bytes
SHA-256: 67d674f3e3edf68452b77df736b315ad0e90ae80e652fe1ea8c875bb98eeebc5
font_01_sfnt_off00009087.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9087 10380 bytes
SHA-256: 537f04551bfef247f2ee37b2e479ce6b96d3d1781e0be6e2815784cfc8acf8e7

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