Malicious PDF — malware analysis report

Static analysis result for SHA-256 802249bb9fa4c24a…

MALICIOUS

PDF

195.7 KB Created: 2020-08-12 20:50:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1c5527a9338c03146b14182d5032e516 SHA-1: cf76c77ad83b48610d5da9f6ce23d66ae1dcbd7d SHA-256: 802249bb9fa4c24a38dffe5e3a3288d58f98118b3131b2cf15995f963fefc6a0
134 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a redirector service, which in turn leads to a URL associated with 'public speaking topics pdf'. This suggests a phishing or content-luring attack. The ML classifier strongly flagged this PDF as malicious, and heuristics indicate the use of redirector links for malicious purposes. No scripts were extracted, but the primary attack vector appears to be the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=public+speaking+topics+pdf In PDF document text
    • http://files.elephantade.org/uploads/1/3/0/7/130738620/xowoxijajapaxe_tumujezujebopil_wodufeduk_dabagunokuj.pdfIn PDF document text
    • http://files.igrivera.com/uploads/1/3/1/4/131452903/5da1f972cd.pdfIn PDF document text
    • http://files.playfulwonders.com/uploads/1/3/1/1/131164355/2375453.pdfIn PDF document text
    • http://files.michaelaarodriguez.com/uploads/1/3/0/7/130775557/wiwum-tuguninesupagom.pdfIn PDF document text
    • http://napif.cometboosterclub.com/uploads/1/3/0/8/130874359/guruwa.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/1/0429/7077/5706/files/36221727694.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1329/7560/files/884537074.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8946/8328/files/92343391463.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6568/7717/files/calais_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7807/5036/files/81902967933.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8140/8420/files/33322747158.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74731072541.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7101/2006/files/biogeochemistry_an_analysis_of_global_change_3rd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8249/7696/files/tanuvu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49816413057.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69262577592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3665/5259/files/rofutadikana.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 6

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_off0002bed9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BED9 5432 bytes
SHA-256: d834cdc4f215e075036777dbdde8ebd7f07f240c7aa3d0cea29f387c43a1a13f
font_01_sfnt_off0002d15a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D15A 15296 bytes
SHA-256: a72d86f882785c8b728ac3012509b88b903cf0a2c13cb1a55797e9d7b84c6df3

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