Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f25073a46f56f50…

MALICIOUS

PDF

41.3 KB Created: 2020-08-14 20:57:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 452762f6126b34fc3cd8bb511c04c9a8 SHA-1: d2bd9e16f1eab508643caa5af15f157d2e6f0ded SHA-256: 4f25073a46f56f50989399b43062c5e4d5abdff0075fe8f64ab7efd5680b2dda
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with the primary redirector URL being `https://ttraff.com/wb?keyword=everyone%20knows%20what%20a%20dragon%20looks%20like%20pdf`. The heuristic `PDF_SEO_LINK_FARM` indicates a mass of external PDF links, suggesting a potential SEO manipulation or content distribution scheme. While many linked Shopify URLs are benign, the presence of the redirector and the sheer volume of links point towards a malicious intent to lure users to potentially harmful content.

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=everyone%20knows%20what%20a%20dragon%20looks%20like%20pdf In PDF document text
    • http://files.missstonerocks.com/uploads/1/3/1/4/131408899/8157512.pdfIn PDF document text
    • http://files.emmaushousewinnipeg.ca/uploads/1/3/1/4/131406739/rajix.pdfIn PDF document text
    • http://files.msdgloria.com/uploads/1/3/0/7/130775297/fefiwikenugefuw-jufejimolabepo-vezisup-rokazidonuv.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/1/0428/9835/8432/files/91960476686.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2032/8864/files/bibtex_format_for_technical_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0461/7119/files/50103183539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7839/3749/files/57518671773.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8026/9477/files/21649898797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/tejowekelezodesirosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0609/1687/files/autofecundacion_en_plantas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1720/6946/files/63801555337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4492/0734/files/personality_traits_vocabulary_list.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_off0000628b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x628B 5576 bytes
SHA-256: 9c7886d384d0b9ff6f6bddd5761e7512ee3fd111f595f251b55da379d768644a
font_01_sfnt_off000075a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75A2 10120 bytes
SHA-256: 9fbfd6db42aae429d938e6b4b3095cba7c9cc61b692c64e887f1cd47c027a0fb

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