Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fabcb34518bed1a…

MALICIOUS

PDF

70.5 KB Created: 2020-08-11 15:58:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b97dbb88e99e0abae0dc2c1802e401cf SHA-1: 61d323bfcfc00246dcfbba05278e55d11dba1cc4 SHA-256: 6fabcb34518bed1adee83f0c2d278eff755ec635d1c3637ff1aac22783fee637
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and a link farm, aiming to trick users into downloading further malicious content. The embedded URL 'https://ttraff.com/pify?keyword=amitriptyline+davis+drug+guide+pdf' is a key indicator of this phishing attempt. The ML classifier strongly supports the malicious verdict.

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=amitriptyline+davis+drug+guide+pdf In PDF document text
    • http://piwobepi.anatomyalchemy.com/uploads/1/3/1/3/131398294/basajut.pdfIn PDF document text
    • http://files.discoverplaybuild.com/uploads/1/3/1/4/131407823/1919376.pdfIn PDF document text
    • http://favin.ohiothunderbasketball.com/uploads/1/3/0/8/130874493/9b8421907a.pdfIn PDF document text
    • http://files.hedcut.com/uploads/1/3/1/3/131384636/3870566.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/1/0430/6088/7705/files/wepuwixifefawegobis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/zoruxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6439/1845/files/nadubuxinuwima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6735/6824/files/44587401924.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7777/1162/files/magasarevuveviteza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/1478/7996/files/64471633306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8631/5684/files/13426694503.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6455/6710/files/difference_between_anode_and_cathode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3548/2517/files/chrome_view_source.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_off0000d5bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5BC 5512 bytes
SHA-256: af0a81322bfacbad3c8ae0d948dbde2ef91da63988694eb93ac067ccad6a4b65
font_01_sfnt_off0000e867.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE867 10816 bytes
SHA-256: f89567c3bfc1cceda5d92163d4f17d42c29182150626fe4cb9caaef247f06d57

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