Malicious PDF — malware analysis report

Static analysis result for SHA-256 0be9093ac8f32325…

MALICIOUS

PDF

41.1 KB Created: 2020-08-08 11:10:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5ee13f5a5b1ab433976cc645fe73ac4b SHA-1: 37df7c46f86ad3866a026ec3d475d25286cc4457 SHA-256: 0be9093ac8f3232516d7a62a621845434102359af629b773aabb3c6b393a569d
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious domain, disguised as a free download for educational materials. The document body and heuristics indicate a lure to a redirector, likely for phishing or malware distribution. No scripts were extracted, but the presence of malicious links and the SEO link farm heuristic strongly suggest a 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.com/pify?keyword=ejercicios+de+adjetivos+calificativos+en+ingles+pdf In PDF document text
    • http://files.goldandcharm.com/uploads/1/3/2/8/132814343/xojotunezenawo-pejawofu.pdfIn PDF document text
    • http://furipa.commongroundonthehill.org/uploads/1/3/0/9/130969060/1625667.pdfIn PDF document text
    • http://files.eurovisionequestrian.com.au/uploads/1/3/1/0/131070971/a3f30dce624b8e.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/1/0439/0692/4712/files/fiboxabuzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6829/3287/files/bsc_nursing_2nd_year_syllabus_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0327/3628/files/32043002831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/8894/9927/files/calendario_escolar_2020_y_2020_sep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9830/0823/files/metallica_hardwired_to_self_destruct_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2469/4942/files/6891386070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4233/3087/files/87317661302.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/3294478915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0686/8126/files/arthritis_research_uk_back_pain.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3826/0899/files/infinitive_and_bare_infinitive_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6591/5032/files/sitapakozid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1891/0870/files/31831232901.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2205/6600/files/29654559133.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 3

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_off00005fdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FDB 5416 bytes
SHA-256: fd594a4ffc0efc4a7a4f99aeee9c9251fb4e2f941511b44523096b65d82035f3
font_01_sfnt_off0000726c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x726C 11392 bytes
SHA-256: dc3f1f4199b55addd07245591c557d413242b70e9a912253db1c521463fb3ccf

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