Malicious PDF — malware analysis report

Static analysis result for SHA-256 62fbf8b42d57dce1…

MALICIOUS

PDF

50.2 KB Created: 2020-07-23 11:46:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c0445efed5097ad798431193ecc1bfe5 SHA-1: f03bc2976d0b74cad17302262b587307c9efdcf4 SHA-256: 62fbf8b42d57dce14db8257cb2cb6a32008fb5e7721726f1482783cb885df70c
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external PDF files, many of which are hosted on Shopify and appear to be part of a link farm designed to mimic legitimate content. The primary redirector URL, https://ttraff.cc/pify?keyword=behavioral+theory+of+smoking+pdf, is flagged as malicious and likely leads to a phishing or malware distribution site. The document body, though heavily obfuscated, contains text related to 'Behavioral theory of smoking pdf', suggesting a lure for users searching for academic material.

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.cc/pify?keyword=behavioral+theory+of+smoking+pdf In PDF document text
    • http://files.saleopardhunting.com/uploads/1/3/1/3/131380471/xurirajobi.pdfIn PDF document text
    • http://files.norwegianmade.com/uploads/1/3/1/3/131398380/2554e3016c57.pdfIn PDF document text
    • http://files.socialvalueworld.com/uploads/1/3/1/3/131381677/5836811.pdfIn PDF document text
    • http://files.matthewkadey.com/uploads/1/3/0/7/130738621/9465999.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/1/0434/7835/2022/files/datanizejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1473/3480/files/vizumovugokolifota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7027/4201/files/25591290060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6359/7466/files/pasazewatarobegasatep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4161/2199/files/5232702375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xigidewepiwunabifaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4993/4229/files/wekawazowewegam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6239/4021/files/mukigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9818/6663/files/44970449705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1715/0368/files/88704067033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5061/4429/files/takepamifumominawabarumup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gojifazuxosupimuron.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8819/9328/files/68668378160.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 7

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_off00008520.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8520 5516 bytes
SHA-256: 95557004157c685e92d6c1b2db4cee0c08a32876262c88b524063b0b2476abf7
font_01_sfnt_off000097d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97D1 10788 bytes
SHA-256: e39eebc20bb66d0a4de42de775f5251a4db5afda92df243d495d3cdba06fe5fb

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