Malicious PDF — malware analysis report

Static analysis result for SHA-256 67e68c690b0c8181…

MALICIOUS

PDF

35.4 KB Created: 2020-08-02 13:22:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2d136bba0485a9890ab620ebfa94a326 SHA-1: 6f4bdf2d4dd7b178d161199948ad778193c464e0 SHA-256: 67e68c690b0c8181032597b88d5dc1138b4f8d917b9cb17ef9e3a6cd7c55724d
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector infrastructure, suggesting a link farm or phishing attempt. The primary malicious link, https://ttraff.ru/pify?keyword=nikon+d5200+for+dummies+pdf, is identified as a known malicious redirector. The document body, though heavily obfuscated, contains this URL and other Shopify links, indicating a lure for users to download seemingly benign files that likely lead to malicious content. The ML classifier strongly supports the malicious verdict.

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.ru/pify?keyword=nikon+d5200+for+dummies+pdf In PDF document text
    • http://files.ghostinspectors.com/uploads/1/3/1/3/131398323/xowiwetiv-terafozuw.pdfIn PDF document text
    • http://files.capripta.com/uploads/1/3/0/9/130969717/zadizulupozu.pdfIn PDF document text
    • http://files.missdallasshop.com/uploads/1/3/1/4/131406036/3243678.pdfIn PDF document text
    • http://files.gresford.org.uk/uploads/1/3/0/7/130739022/nunivu.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/1/0428/1024/5286/files/22211735593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6990/6844/files/5607792573.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1617/5263/files/30254133869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2704/6298/files/ragiluxoxukit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/5957595816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3153/5524/files/21559224197.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6472/9512/files/58803005770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0156/0737/files/harbor_freight_multimeter_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6934/0822/files/89847367833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0147/9321/files/35942973839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9254/8515/files/pepiteb.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
🗂 Part of campaign: capripta.com 4 samples

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_off00004c15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C15 5376 bytes
SHA-256: bc4690fdb2b56fcc9ace7404fcba571cf8788f255c3356a5b99edc7bf64ccc37
font_01_sfnt_off00005e5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E5E 9768 bytes
SHA-256: 4b9e337ba9a4077fc17b91e8996b5603eac0be983ea1f8e65bedde3ba3fd2932

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