Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cb9714747ec6486…

MALICIOUS

PDF

122.8 KB Created: 2020-08-28 05:10:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ee9dceea92eaad09d86b7e56108d8607 SHA-1: 0f56dcdd8d357fdea0d4a961c4d1bba7b9bce54a SHA-256: 9cb9714747ec6486b6ca1807746ba32823ec86ee56e40070777ffe1d2406b15d
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.ru'. Additionally, it exhibits a PDF link farm heuristic, with numerous links, many hosted on Shopify, likely to obscure the malicious intent. The ML classifier also strongly indicated maliciousness. The embedded URL 'https://ttraff.ru/pify?keyword=resumen+hamlet+corto' is the primary IOC, suggesting a phishing or malware delivery 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.ru/pify?keyword=resumen+hamlet+corto In PDF document text
    • http://zarikit.wicknscents.com/uploads/1/3/2/8/132815806/pafepimamuwoxi.pdfIn PDF document text
    • http://files.youthdentalconference.com/uploads/1/3/2/3/132303068/suxerujefakobusidom.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/1/0428/8544/7833/files/59795189356.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1022/0447/files/97957494369.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4035/9068/files/99758943334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35209966956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5834/8703/files/direct_and_inverse_variation_practice_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/8640/0936/files/literary_devices_list_and_definitions_and_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3673/7699/files/pilulujakonaneva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6539/3820/files/sefejogofi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1845/2120/files/4246112685.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_off0001a755.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A755 5044 bytes
SHA-256: 28e6189dc212696b04109cfd419c85807d34d3921935477df99cdcd34ec36b9e
font_01_sfnt_off0001b845.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B845 11444 bytes
SHA-256: f295961bff2c6d2366393620818c0782f80edfeb7c360a72541015104cb4b51e

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