Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3f692df66859718…

MALICIOUS

PDF

44.0 KB Created: 2020-08-25 18:46:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f62ee7d68b3de2623c90a5ee9fb76100 SHA-1: 6835e49fde1aec072c611d95013a34d61e2c3e9e SHA-256: f3f692df66859718cb29d2a3178a0057115f13b00a3ff1e24f27b0e5ffcc91fb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Phishing:Spearphishing Attachment T1204.002 Malicious File:Malicious Link

The PDF contains a large number of embedded links, many of which point to PDF files hosted on Shopify domains. This suggests the primary purpose is to create an SEO link farm, likely to manipulate search engine rankings. One of the embedded URLs, https://ttraff.club/pify?keyword=osrs+best+mage+gear, is flagged as a malicious redirector. 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.club/pify?keyword=osrs+best+mage+gear In PDF document text
    • http://sajumedij.bluevista725.com/uploads/1/3/1/4/131453674/5057066.pdfIn PDF document text
    • http://files.oraclefitness.com/uploads/1/3/0/7/130739826/887303.pdfIn PDF document text
    • http://gunavux.jenroweaicp.com/uploads/1/3/2/7/132741100/bapimoj-didivopefum-sapiduraju-wiwejakidexof.pdfIn PDF document text
    • http://gebefe.scorrybreac.org/uploads/1/3/0/8/130813694/61e005ba51741.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/1/0430/0763/9711/files/gesidipabidupufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8642/9861/files/filasuxebesawe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1765/8780/files/52250384059.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2516/9565/files/ms_dos_user_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8942/0695/files/fabepowugosazokagopak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5497/1557/files/kawudutakowudik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0621/4819/files/probability_jim_pitman_solutions_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3213/3278/files/vowitatuzugoborevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2920/7957/files/hpu_m._ed_date_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/3681/9865/files/85878709045.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_off00006750.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6750 5140 bytes
SHA-256: 4d1d9172557ae073eca943db3c566512832884dda2cc3aa725ee1597d452c8ff
font_01_sfnt_off000078b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78B5 13912 bytes
SHA-256: fb440cc0b336136e4063aab315a334d510fffbb9893c0e73ecf9c61929468176

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