Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd7b19764447b550…

MALICIOUS

PDF

38.7 KB Created: 2020-08-15 12:12:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3fbc1673552057f4058e14c062d2ecbd SHA-1: 61fffafdccb30432a95710e95f37b3e55e8dcaba SHA-256: fd7b19764447b550632dc2d8432c10a50ff0cb44e49948358534f52d3f42a573
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.com. The document body, though partially corrupted, includes the same URL and appears to be a lure for a PDF download. The presence of numerous external links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to obscure the malicious redirector. No scripts were extracted from this sample.

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/wb?keyword=lista%20de%20verbos%20en%20pasado%20simple%20en%20ingles%20pdf In PDF document text
    • http://files.johnbeswickfurniture.net/uploads/1/3/0/9/130969712/votebinewozepatidetu.pdfIn PDF document text
    • http://mejozobe.gtqueens.com/uploads/1/3/0/8/130874330/najef_bolegaxitemifo_pijud.pdfIn PDF document text
    • http://files.wanderersmagic.com/uploads/1/3/2/6/132695832/2352343.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/1/0436/0686/8126/files/benevolent_fund_form_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/suramagufumaxuragozud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0969/6156/files/google_sheets_organizational_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3856/2712/files/1370806584.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/30617095305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1889/5010/files/37874276857.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2738/1924/files/443914390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7879/4917/files/pagekavanupa.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 4

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_off000059b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59B0 5500 bytes
SHA-256: fd70c5487a0e2fd3bf5aea79d0b7bcf322a1851fb30869486097966d514c8033
font_01_sfnt_off00006c4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C4F 9912 bytes
SHA-256: 1b5f6eb608561924cf7e2630e5775be5143ffc69f0a8f540b73dc0a194b4dddd

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