Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ac465d114caed1e…

MALICIOUS

PDF

48.6 KB Created: 2020-08-21 20:23:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 147c4d0b426e3079516f264d8c003f57 SHA-1: 2a5a161892454222088c019744a2d215190e4067 SHA-256: 0ac465d114caed1ee599056117db4f771fa6fb94439fdefa45b1e356d4214eff
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=pleomorphic+adenoma+of+parotid+gland+case+report'. This suggests the document is part of an SEO link farm designed to phish users or distribute malware. While no scripts were directly extracted, the PDF structure and link farm behavior are indicative of malicious intent.

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=pleomorphic+adenoma+of+parotid+gland+case+report In PDF document text
    • http://jivukeb.paulavanbeek.com/uploads/1/3/1/4/131407253/xoxipaf-wejise-nalasuvana.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/1/0439/2153/9240/files/topical_antifungal_drugs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8561/7566/files/medical_tourism_marketing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0664/7717/files/50668180306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1883/0503/files/gupetisizozadajepedeki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3056/9382/files/24524908671.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4003/9324/files/jozovidabezasijipilis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4686/3005/files/bopagus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2168/1315/files/xukesirapuputi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0458/5917/6601/files/ascom_i62_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0458/3318/files/pimejotiwekug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7298/8071/files/11040436203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6640/1692/files/51861111141.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_off00007e27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E27 5568 bytes
SHA-256: 22385ca20d4b6abf70f0ce89766a402f6f57970ceed5d74b7a64f867bc5d9f6e
font_01_sfnt_off000090e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90E8 11128 bytes
SHA-256: 9472bd003791dc6d71877e553c22565ae632e0aab1ab8a9c31e9c2d553cba82c

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