Malicious PDF — malware analysis report

Static analysis result for SHA-256 7552fe645f4c1c13…

MALICIOUS

PDF

40.0 KB Created: 2020-08-24 11:32:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 812b0f6a35fb5c0ec3521f9ffe467e37 SHA-1: dd52f01bcc7a86fd09ba5a7adc0e9446b5086e7a SHA-256: 7552fe645f4c1c13194e6cad0a94f1b599abbdc2aca8b9c269cf41abe1e52e2a
194 Risk Score

Malware Insights

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

The PDF file contains numerous links, masquerading as benign content like "good morning quotes" and various PDF documents, to a redirector URL. The primary malicious link identified is https://ttraff.com/pify?keyword=best+good+morning+quotes+image, which is flagged as a malicious redirector. The ML classifier strongly indicates maliciousness, and the presence of a link farm suggests an attempt to distribute malicious content or phish users.

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=best+good+morning+quotes+image In PDF document text
    • http://wivagiwa.massapequahistoricalsociety.org/uploads/1/3/1/1/131164100/58829190bb2903.pdfIn PDF document text
    • http://files.emmanuelpenyffordd.org/uploads/1/3/1/4/131453919/telonovimobi_finifabasutiwum_zumomowu.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/1/0444/1725/3542/files/easy_piano_christmas_carols.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3077/3913/files/5602078232.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3346/8839/files/torumamelupemodawov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1903/5033/files/41213925091.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0225/5770/files/verifica_di_grammatica_analisi_logica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5784/8224/files/nightmare_creatures_ps1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/37604868145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0051/1138/files/46657862404.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9033/7189/files/tapevigexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6693/9799/files/62040123414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1937/0659/files/labefiropunata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3142/8248/files/83053959547.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/3943/6449/files/18755791777.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_off00006115.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6115 5288 bytes
SHA-256: b10bdcb0c4d1d555209936d6261bf110ce781638555149f172ec04674fb91cdc
font_01_sfnt_off000072e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72E7 9400 bytes
SHA-256: df1fbab19fcd54efd8c78c2e7cb21aff67dc62606a9fb405947d41c1dd2abd29

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