Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9716e27aa4db0fb…

MALICIOUS

PDF

43.3 KB Created: 2020-08-22 07:09:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 689ce7e80b63b91bb1daa2cd903a644f SHA-1: 37758d75bea7328cb81021979761456e08d821da SHA-256: a9716e27aa4db0fb4b7c4a8f8680a1b84602ddefe27c50748755b9a3a7230dbb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to ttraff.com. Additionally, it exhibits characteristics of a PDF SEO link farm, embedding numerous external links, with the primary redirector URL being https://ttraff.com/pify?keyword=linear+guide+rails+and+blocks. The document body text is largely unreadable binary data, but the presence of the malicious URL and the link farm structure strongly suggest a phishing or malware distribution attempt.

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=linear+guide+rails+and+blocks In PDF document text
    • http://files.rethanksaz.com/uploads/1/3/1/8/131856646/xidebuxani.pdfIn PDF document text
    • http://xujisiki.erikgjesfjeld.net/uploads/1/3/1/1/131164312/tonatuvenir-bavuloxo.pdfIn PDF document text
    • http://wuvan.womenschangecoach.com/uploads/1/3/1/4/131453624/5613303.pdfIn PDF document text
    • http://files.whitelodgeownersinc.com/uploads/1/3/1/4/131437775/6482334.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/1/0433/0687/7080/files/vibamiwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5337/4874/files/43836686009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6795/7658/files/90907497964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6200/9755/files/vidibaligofilenaxur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6216/4644/files/63605493759.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7881/9735/files/xafifupurisijovewodamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3254/1344/files/nanif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1423/3000/files/nugutub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/39086675177.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2170/5124/files/beery_vmi_assessment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2127/9137/files/daxusiduwer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5004/8420/files/xemafitovelonen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/5479/6698/files/paneri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8692/0347/files/31984002503.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 6

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_off00006a79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A79 5252 bytes
SHA-256: 1d3ddaa41b0e99d4412de76944d958d4005bfd7d2e253089127879efa06d25f0
font_01_sfnt_off00007c58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C58 10480 bytes
SHA-256: d3708042c5b53b62adce2e999394e3af8803e3629068fc065e071fb046e8532c

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