Malicious PDF — malware analysis report

Static analysis result for SHA-256 7790fc6c3287c1ef…

MALICIOUS

PDF

42.4 KB Created: 2020-08-02 18:10:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 36b3e47c5e33d13928a7b6a6fd82c6b1 SHA-1: 82290892fd6bc229963d63d6ebfb1fba254a0532 SHA-256: 7790fc6c3287c1ef8534333931e129059fdc167e9822dac88f55d83449a2dd23
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though obfuscated, contains text related to search and links to external PDFs, suggesting a lure to a phishing or malware distribution site. The presence of many links to Shopify-hosted PDFs indicates a link farm used to obscure the final malicious destination.

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=binary+search+worst+case In PDF document text
    • http://files.wcpreschoolva.com/uploads/1/3/1/0/131070351/dutaxobizidifi.pdfIn PDF document text
    • http://files.alyssacoughenour.com/uploads/1/3/1/3/131378899/6613376.pdfIn PDF document text
    • http://files.littlesharkandco.com/uploads/1/3/0/9/130969185/561f17d4005e0.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/1/0431/5850/3590/files/85031800192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2117/0850/files/29534251023.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2091/0746/files/11588411861.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3986/7559/files/natazezenumufujedapez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/5976612300.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3279/6574/files/85110751120.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1520/8098/files/emblems_for_bf4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3631/9639/files/9945727054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5278/5055/files/9537497044.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5837/9417/files/46456462828.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/21617342462.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8118/8003/files/saxujo.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_off000067f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67F2 5096 bytes
SHA-256: d3702d62c26f93957a6e7b09f2dacf5b3b64ff470194d7b954ce37ac37448b21
font_01_sfnt_off0000795c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x795C 10488 bytes
SHA-256: a3a0870b20f4575ece1da0e694ebd25b457062c775c9cecfee8b207ca2a1baea

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