Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd95bccb56c687b8…

MALICIOUS

PDF

40.1 KB Created: 2020-07-28 22:57:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1ebbe4acb6866af536ef09982cdf7e62 SHA-1: c75c0b69d8e092010eca30fa61294f11d9ec47e4 SHA-256: dd95bccb56c687b8d634740df23091cf4bbb5a35a6497d3de08a5f491ac80b73
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. The PDF also contains a large number of external links, many hosted on Shopify, suggesting a link farm for SEO manipulation or to obscure malicious destinations. The primary malicious URL is ttraff.cc, which redirects to a specific chemistry book lure.

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=chemistry+book+grade+10 In PDF document text
    • http://files.kierstinbible.com/uploads/1/3/0/7/130776204/a436b0d.pdfIn PDF document text
    • http://files.usbmnla.com/uploads/1/3/1/4/131438007/7525669.pdfIn PDF document text
    • http://files.pilateswithmichelle.org/uploads/1/3/1/4/131438389/d0415011d11202.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/1/0429/9830/0823/files/demezimepezujutomeripisu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2599/7722/files/52711318922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6859/5112/files/18064278304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nomevorijodasulalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2853/6731/files/davisimulagikujagik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93236297381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8500/2920/files/32325440921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mipubafuminidumef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7141/3160/files/46853304013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9452/2518/files/sisesinofepojesu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nagexonulelaxefirulilona.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_off00005f6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F6C 5412 bytes
SHA-256: f24859d62535a2bc4ed707ec3550d6ae44e8e29568517c4707f0b7c5409953f9
font_01_sfnt_off000071dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71DD 9996 bytes
SHA-256: 5e1285962c02e9e43452579b7ee20097f0656b7fd4f110d10be653d8c4795598

Open this report in the interactive analyzer, or submit your own file for analysis.