Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cece5517da3a646…

MALICIOUS

PDF

41.7 KB Created: 2020-08-07 05:51:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1f096895da74e4f0d58c92d48ee2f5c5 SHA-1: 04cab82f7439dfa1de2cff0804f763638069dd58 SHA-256: 7cece5517da3a64600e3b66ea285be5dd3cee610301e37d000b76117eae26d28
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=capacitores+definicion+pdf', indicating a lure to download further content. The presence of multiple external PDF links, including benign ones from Shopify, suggests an attempt to disguise malicious links within a larger collection, likely for SEO manipulation or to appear legitimate. The ML classifier strongly flagged this PDF as malicious.

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=capacitores+definicion+pdf In PDF document text
    • http://files.brendabronnertv.com/uploads/1/3/0/8/130874058/loguraxazusopumobun.pdfIn PDF document text
    • http://files.urbanathenscollective.org/uploads/1/3/0/7/130739239/08df2d383.pdfIn PDF document text
    • http://files.jackienorman.com/uploads/1/3/0/7/130776046/napevirixajesed-kadafavorapi-fedezomuter.pdfIn PDF document text
    • http://files.hightowerministry.org/uploads/1/3/1/8/131856134/kometepilijoji.pdfIn PDF document text
    • http://files.mountofoliveslutheranchurch.com/uploads/1/3/1/4/131406785/b0a6b62.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/1/0433/1352/8987/files/differentiation_chain_rule_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94430640368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6271/4773/files/endometritis_in_cattle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3633/6540/files/jodujabudijuxelobifinuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8351/3494/files/56151147213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0684/4315/files/bulavup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3967/8886/files/fozetuxul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0951/5413/files/wavobebodixidalexome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bararilisubolubudikolumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9164/8929/files/rowizudinowogiwurilibo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5326/1724/files/61457887498.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_off000066ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66FF 5024 bytes
SHA-256: 5b709fc66b355e7f4bad60c5727dddd2d57f6e05be5ced054d1b04f18dae77eb
font_01_sfnt_off00007818.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7818 9768 bytes
SHA-256: 3849178d42f81fe12ad8b28750da94913c6b29463e3e37b05bbbd51dfca7f553

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