Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3b70a26cd81b877…

MALICIOUS

PDF

36.7 KB Created: 2020-08-15 06:52:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 783282adea3f606202f28caf46805ba7 SHA-1: 0928ab496eb1a357efeffb8483b91100bf38b9cb SHA-256: c3b70a26cd81b877f51161533ed736f2465591f4e52b40521e05fb6a8b46ed07
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link and a link farm. The document body, though heavily obfuscated, contains the URL https://ttraff.ru/pify?keyword=mercurio+powerpoint+presentation+template+free, which is flagged as malicious. This suggests the document is designed to trick users into visiting a malicious site by appearing to offer a free presentation template. The presence of numerous other links, many pointing to Shopify, indicates a potential SEO-based lure to distribute malicious 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.ru/pify?keyword=mercurio+powerpoint+presentation+template+free In PDF document text
    • http://pifig.jenniecaseysinnott.com/uploads/1/3/1/6/131606289/zijoletem.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/1/0432/6375/4404/files/562186947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/26178019395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4078/5062/files/components_of_vocational_guidance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/investor_presentation_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8820/7255/files/duvuxufizixomijosuzokor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/4344/8990/files/valores_esteticos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0925/3281/files/bidezogokukoba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0209/3987/files/33225610754.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0273/1430/files/mogovazalidedakovibud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3839/1970/files/33103478692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2160/6820/files/zeniked.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 1

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_off00005207.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5207 5256 bytes
SHA-256: b1ca4006e4e9e416e7fb8408220cca1684adda3265d9d447d7e843533249b7d5
font_01_sfnt_off000063e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63E5 9976 bytes
SHA-256: 5a877d44423b66e052ab63f80821695e01396f2f11f08d18f71028ec0b41459b

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