Malicious PDF — malware analysis report

Static analysis result for SHA-256 60b8713a33641a1b…

MALICIOUS

PDF

61.3 KB Created: 2020-07-27 13:31:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d455dbac5ceca5783e0fb90eba674bd2 SHA-1: 32bda6118c42e752bfcffd5b1000df1159439bf2 SHA-256: 60b8713a33641a1beeffe17815ee17fe9c17468422be2d4ab79cbe191bfbf395
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as legitimate downloads, but they redirect to a malicious infrastructure at 'ttraff.ru'. This indicates a phishing or scam attempt, likely using a spearphishing attachment as the initial vector. The ML classifier strongly supports the malicious nature of this PDF.

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=absorcion+y+distribucion+de+farmacos+pdf In PDF document text
    • http://files.pempickleball.com/uploads/1/3/1/6/131636843/xosizem-bupozojatolidu-nusodilifudeta-zotupiwivibemi.pdfIn PDF document text
    • http://files.vincentrussodesigns.com/uploads/1/3/0/7/130739783/2950643.pdfIn PDF document text
    • http://files.brightwatersbeverage.com/uploads/1/3/0/9/130969172/357dfbae.pdfIn PDF document text
    • http://files.transformationconference.co.uk/uploads/1/3/1/3/131398117/dovitu_wanojem_todenopikined.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0428/9835/8432/files/87899810879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2865/9874/files/sipajowefuxeluvilulevobu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4976/3494/files/50162204418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0101/1611/files/11573831450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1416/8480/files/74049726752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/81988232477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4528/1183/files/4442156327.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9945/5642/files/64660260032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1671/6437/files/denodezifez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5086/9671/files/fujepejixilejuxixifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9097/5647/files/voluwipufemezivubujixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4995/1138/files/kujokusosujutatowonozas.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a430.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA430 2252 bytes
SHA-256: 4d771382345340bccaf88016fc037321effe9b22602cddc85c89645595fd4ad8
font_01_sfnt_off0000ae2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE2E 5380 bytes
SHA-256: 1716ef7b8332ad93b669c2b1fa126eb135c4dcf1470f510cb6b45ba133dd522b
font_02_sfnt_off0000c05c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC05C 11560 bytes
SHA-256: 6ce969a2ac3ce7acc15b55d3cc4d55e0b60dddd6403a7487602e42069661308b

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