Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3586d7ec4b3233e…

MALICIOUS

PDF

70.2 KB Created: 2020-08-04 21:12:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7858ec207352d31754626c965513f482 SHA-1: e89c1790e60d6a0307b674fa19d21ee588243f16 SHA-256: f3586d7ec4b3233e68b75af3701b782d8ab3f128970d0965087585a9de527e35
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link to a redirector hosted on 'ttraff.ru' which is flagged as malicious. The document also functions as a link farm, directing users to numerous PDFs hosted on Shopify, likely to obscure the malicious redirector. The presence of a 'download button' heuristic further supports a lure-based attack. No scripts were extracted, limiting the analysis to the document's structure and embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=akbar+birbal+stories+in+english+with+moral+pdf In PDF document text
    • http://files.sharihuntphotography.com/uploads/1/3/0/7/130740112/kunagezosal_kovixufupurodid.pdfIn PDF document text
    • http://files.lalocurarock.com/uploads/1/3/1/4/131453034/wekaziginuzuf.pdfIn PDF document text
    • http://files.rsvpvolunteercaregivers.org/uploads/1/3/2/6/132681824/navate.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/1/0429/0058/6649/files/sunesimuvij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6363/6131/files/bash_rename_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7854/9665/files/91358280397.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9158/3391/files/pats_price_action_trading_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5005/7373/files/50994328015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8812/4835/files/88180496673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0622/9654/files/zunavetosuborume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4583/8232/files/87314903585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/dojozowas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nuruge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0691/0887/files/nozanotuwonivoliditum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0696/8483/files/47842786406.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9994/7169/files/kelugosimatoxovazu.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_off0000d3bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3BC 5740 bytes
SHA-256: 7958e07c6021ff0710ad5aba292e8ece533e3ae8f6478ddfc601186f647b380d
font_01_sfnt_off0000e72c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE72C 10588 bytes
SHA-256: 37787a61a0eb18c886cc41b223525b6d5af2dbf1bdd8f884efceec7dbda67c96

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