Malicious PDF — malware analysis report

Static analysis result for SHA-256 85752f304dfeadad…

MALICIOUS

PDF

42.4 KB Created: 2020-07-31 21:36:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e20b8667c14dc984815fbabdfef6576d SHA-1: 80bea8b3e2d6b00e215c0f776fd14680c23ad7f7 SHA-256: 85752f304dfeadad2f822479200f3e03f58894737fc599c2f7fb5021eedd8564
194 Risk Score

Malware Insights

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

This PDF document contains numerous links designed to redirect users to malicious infrastructure, specifically identified as a link farm and redirector. The primary malicious URL identified is https://ttraff.ru/pify?keyword=curl+post+parameters, which is linked to known malicious activity. The document's structure and embedded links suggest a phishing or scam attempt to lure users to external sites.

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=curl+post+parameters In PDF document text
    • http://files.heathermccallphotography.com/uploads/1/3/1/3/131381640/ced1f87c.pdfIn PDF document text
    • http://files.kandersonmusic.net/uploads/1/3/1/1/131163949/bisivutumakobijuferi.pdfIn PDF document text
    • http://files.hughespropertymaintenance.co.uk/uploads/1/3/1/4/131407635/712664.pdfIn PDF document text
    • http://files.19thstreetchurchofchrist.com/uploads/1/3/1/1/131164382/07f26.pdfIn PDF document text
    • http://files.orwellbiblechurch.org/uploads/1/3/1/8/131871488/7377478.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/1/0433/1565/8920/files/25941390215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7504/2457/files/66102016304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0015/8629/files/89824246241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6073/1808/files/finisod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6463/1195/files/gamesibomuvotepogerefaxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5632/3995/files/dojobotelosegeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4997/5961/files/98793836257.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7194/6398/files/88674633554.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0179/1132/files/94150578652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1991/0811/files/96845955676.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_off000066dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66DC 4868 bytes
SHA-256: d36f98e4ac11f914c997f1962da89e371623b82ccd59a907094d358462663a3a
font_01_sfnt_off0000774a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x774A 10976 bytes
SHA-256: fa28ee7c951c43a82351b4731b70d4ac5089b7eaff2900acd3070930422ddd7e

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