Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b7267a82c13b626…

MALICIOUS

PDF

45.6 KB Created: 2020-08-12 12:42:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7cdde4ec53c72052cbec0aeb4ebb712d SHA-1: 1cbdcddd8a315796ed292e4fe060047da9f4d89c SHA-256: 7b7267a82c13b626b85f89a178465c1fe82d8c40684e6aee26e4e639b0bfaf44
194 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to Shopify domains, but the primary link directs to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the same URL as the primary malicious link, suggesting an attempt to lure users into clicking it for a supposed free download. 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.ru/pify?keyword=electrical+building+drawing+symbols+pdf In PDF document text
    • http://files.thesexminister.com/uploads/1/3/1/3/131398242/zavimuzuk.pdfIn PDF document text
    • http://files.professionaltalker.com/uploads/1/3/0/8/130814056/a200a4e.pdfIn PDF document text
    • http://files.thepaincompanion.com/uploads/1/3/1/6/131607467/pexirejedoxuzat_kivifux.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/1/0432/8977/2190/files/40573792815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9482/6405/files/nosilejafeduxoziga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4506/8699/files/82264434343.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1374/1472/files/5070953956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5897/0280/files/zideris.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5317/9289/files/86310620830.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4521/5656/files/15450384251.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9290/8963/files/lijegukor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3945/7431/files/36168104122.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3380/5471/files/zumuvefewojujafudin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4889/files/first_advantage_background_checks_reviews.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_off0000734e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x734E 5764 bytes
SHA-256: 610cd69e223e56a318e66b88970a6aacf88dce57ce801fa0a9fb2059802398ba
font_01_sfnt_off000086e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86E7 10176 bytes
SHA-256: ccf93080f0ae78de25752fbd263a988478cd703323b40f2d6c56f05f5e0c77a7

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