Malicious PDF — malware analysis report

Static analysis result for SHA-256 20d1702165167880…

MALICIOUS

PDF

43.1 KB Created: 2020-08-12 09:22:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0b12fe7c349b16d265d42b06e18eea3d SHA-1: bdd9b8de4641a2a18a0f448987f2f39193dbb3d4 SHA-256: 20d17021651678805daa686af8f4596e543e0efd17c6240e4ec423e8df684de0
234 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are part of an SEO link farm designed to funnel users to malicious redirectors. The primary redirector URL is `https://ttraff.ru/pify?keyword=boston+bowel+preparation+scale+pdf`. The document also includes a lure to copy/paste clipboard content into a shell, suggesting an attempt to trick users into executing commands. The ML classifier strongly indicates maliciousness.

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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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=boston+bowel+preparation+scale+pdf In PDF document text
    • http://files.virginiashowmasterscircuit.com/uploads/1/3/0/7/130775970/2702494.pdfIn PDF document text
    • http://dirok.nbachurchofbryant.com/uploads/1/3/2/8/132814930/7287377.pdfIn PDF document text
    • http://files.military2millionaires.com/uploads/1/3/1/8/131872273/gitufajerifinu.pdfIn PDF document text
    • http://sixesofa.emeraldtrailbassethounds.com/uploads/1/3/0/8/130874207/zinerisesedijaj.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/1/0435/5768/3349/files/pidakokulokalosewuju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1064/6435/files/tujapek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2795/4853/files/zivajujodaratupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6139/3061/files/categorical_syllogism_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6569/4613/files/satalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6211/7030/files/619389578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3973/6487/files/body_temperature_regulation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/61403973964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9872/5793/files/vimukizixosuxaniw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6255/0940/files/el_nacionalismo_mexicano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xakikalimakimoxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5093/4173/files/36553477823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9731/7783/files/toved.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 3

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_off00006841.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6841 5432 bytes
SHA-256: 32dffff54c807ef2d10611f189650eeec900db458c8cd056de5f5ca779096d63
font_01_sfnt_off00007acd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ACD 10972 bytes
SHA-256: 253828e32fb350a7a62f68a9915b6cae3e820d8bdf19aa88d6a961f87f907092

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