Malicious PDF — malware analysis report

Static analysis result for SHA-256 6811f567d88c3fb7…

MALICIOUS

PDF

41.4 KB Created: 2020-08-18 20:52:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7d732dae96cadf00e5688e0b6f033a93 SHA-1: 658f9d61f301c28a491cfde85a971b65d06635c4 SHA-256: 6811f567d88c3fb7c606681022a90e80def2eab47e407a088a09592a3e5cb3a6
194 Risk Score

Malware Insights

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

The PDF contains a link farm of 13 PDFs, with the primary redirector URL being https://ttraff.cc/pify?keyword=best+greatest+weakness+answers. This indicates a likely phishing or malware distribution attempt, leveraging SEO tactics to obscure the true malicious intent. The document body, though heavily obfuscated, contains the same redirector URL and references to PDF files, reinforcing the observed attack pattern.

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.cc/pify?keyword=best+greatest+weakness+answers In PDF document text
    • http://files.commasense.net/uploads/1/3/0/8/130873987/xuzuzivul.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/1/0429/6006/0567/files/bafisumomibugumifo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2010/6404/files/stalking_jack_the_ripper_vk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1561/8203/files/33211871554.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0704/8860/files/kilosilasuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8729/7696/files/dimefenotino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3926/8770/files/32740776927.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7564/1247/files/54179042520.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5349/9046/files/powers_season_1_episode_9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5394/0887/files/59678821599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3407/4523/files/bavowurexig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2371/9845/files/42390691687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/3066268191.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 1

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_off000063a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63A1 5028 bytes
SHA-256: 6c0a49854567ffe99b659b1c94b141ef6bf79e3d234cb89fc53f3ceed08e6a2f
font_01_sfnt_off000074e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74E3 10516 bytes
SHA-256: b5d00486c939d1e11ba246b61bcffc067789e40fc124651a2ac733dbbae56074

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