Malicious PDF — malware analysis report

Static analysis result for SHA-256 648ab53410cf9f09…

MALICIOUS

PDF

43.5 KB Created: 2020-08-01 10:49:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 80489f16162498bf4f895ef0d3c2dec8 SHA-1: 847d58240094f82287d5559553c6fb7d22de0aab SHA-256: 648ab53410cf9f09094b4810b31e8601a5a16740000a81d0a1c89e488b1ab34d
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector URL (https://ttraff.ru/pify?keyword=ds2+twinkling+titanite). This suggests a phishing or scam attempt, likely using the document as a lure for users to click on malicious links. 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=ds2+twinkling+titanite In PDF document text
    • http://files.jessicawelshpiano.com/uploads/1/3/1/3/131383673/8891393.pdfIn PDF document text
    • http://files.windycityknittingguild.com/uploads/1/3/2/7/132740584/51be0.pdfIn PDF document text
    • http://files.donesladventure.com/uploads/1/3/1/4/131438079/2417918.pdfIn PDF document text
    • http://files.medfieldheightspto.com/uploads/1/3/1/0/131070190/joridesaz.pdfIn PDF document text
    • http://files.giannasbeef.com/uploads/1/3/0/7/130775856/xuvar.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/1/0430/9575/2864/files/23482965885.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8579/0358/files/jojebigotedafarudij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6310/0070/files/xavokoxolozefojibemaxob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3258/4098/files/55066387924.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7381/4182/files/nadoxad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1122/7300/files/42397063778.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5459/6250/files/88037328467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/denikiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0942/5056/files/11431508296.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1133/2507/files/62319649296.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D0D 5044 bytes
SHA-256: 8ae00456c372832c9ed73e147e44ac621eaac35dca26acaeab34930355d8b2b0
font_01_sfnt_off00007e6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E6B 10272 bytes
SHA-256: b641e6cd39538fb4dcda1914fd296badd8185cff45545dc436ca9e0a15536b8f

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