Malicious PDF — malware analysis report

Static analysis result for SHA-256 62987083c981e522…

MALICIOUS

PDF

38.8 KB Created: 2020-08-19 18:18:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bdd66fb1e0903304608fea41873fcf48 SHA-1: 1fd48f874c809bc00b011ad76424eef04edd229e SHA-256: 62987083c981e522fe4df7b743cee52776f30321a63770f044aa7c2814b78583
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 (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains a URL that appears to be part of this malicious infrastructure. The presence of multiple external links, including those to Shopify, suggests an attempt to create a link farm or distribute malicious content through seemingly benign platforms. 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=action+verbs+worksheets+for+grade+3 In PDF document text
    • http://mevigiseg.margaretgracie.com/uploads/1/3/1/6/131637136/7432508b846.pdfIn PDF document text
    • http://jinuwuna.nysacanecorso.com/uploads/1/3/0/9/130969873/0eb25fab2121.pdfIn PDF document text
    • http://zomon.baw-weapons.yez.dk/uploads/1/3/1/4/131406798/9905175.pdfIn PDF document text
    • http://files.tlghk.org/uploads/1/3/1/0/131070151/494090.pdfIn PDF document text
    • http://ditoj.beats2godj.com/uploads/1/3/2/6/132682883/pikeviribosez.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/1/0433/5340/7646/files/78437634486.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3776/9384/files/beavers_bend_fly_shop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/dezixovud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8010/5630/files/18280423787.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/76102764406.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8699/3813/files/23109131733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9177/2063/files/38377906909.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6051/7271/files/mererori.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 5

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_off0000587b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x587B 5760 bytes
SHA-256: 7414c0cf129ccf6df5c3afce21bc05925b2295a9695f1f824a8e9945b34a14b0
font_01_sfnt_off00006c22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C22 10044 bytes
SHA-256: 1b6404deaafd88c9e72574e869c30337497c4581ae42a2058201add66f755d97

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