Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e3cf2b9a09c9f08…

MALICIOUS

PDF

50.7 KB Created: 2020-08-10 18:39:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4628a44c4f446ad30d35b4df2d398dcf SHA-1: 42e1521594a1f1b69de47af9b452d02aa3a406c9 SHA-256: 3e3cf2b9a09c9f08133b28642f8b5235ac1d83c0cd742bb01af081c935878dd1
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a direct link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL https://ttraff.ru/pify?keyword=business+success+definition+pdf, which is flagged as malicious. The presence of numerous links to PDFs hosted on Shopify, combined with the malicious redirector, suggests a campaign to drive traffic to malicious sites under the guise of providing business-related documents.

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.ru/pify?keyword=business+success+definition+pdf In PDF document text
    • http://files.samuelclemens1856.com/uploads/1/3/0/9/130969636/palegejufav_tuginuzesug_rusesoxojuja.pdfIn PDF document text
    • http://files.vanvolleyleague.ca/uploads/1/3/0/8/130874642/zavixav.pdfIn PDF document text
    • http://files.innerpathtoascension.com/uploads/1/3/2/7/132712315/kagusudipuzumaj.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/1/0429/8267/0485/files/88270306054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5397/9550/files/52878850462.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80463449019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6404/9318/files/57430242197.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/3789128943.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7612/4821/files/81093640550.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0268/2789/files/zovopinomenutusidibixo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5559/6198/files/78269486339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2334/2495/files/tedikoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6797/2513/files/53661737119.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/3442/2941/files/91916032122.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4146/2174/files/bjt_transistor_theory.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_off00008765.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8765 4860 bytes
SHA-256: 0fe16b2cb84fa729ace1b82a92fc1b16756cb61a2975dbf221073f896b4c1ee5
font_01_sfnt_off00009800.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9800 11404 bytes
SHA-256: b845b1c8133d8c962ef64e370fa3105c5be858d32f32328f019d16c3cf8048b9

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