Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b37750056fe950…

MALICIOUS

PDF

71.4 KB Created: 2020-11-29 00:33:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-28
MD5: 53f377c616a673286a55dc81d5fc0edd SHA-1: 0d599097e00dabbfee33fd7568c1a36625fd606e SHA-256: 72b37750056fe950d7def2a1e018646edbf834bcb6f8306a5f95e6a7d953ec0e
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafftec.ru/123?utm_term=cheapest+car+insurance+yahoo+answers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4385852/normal_5faa2b236882f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387052/normal_5fa708d066996.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401723/normal_5f97eb00d5820.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/de254a69-df63-4937-aac4-4cccc50ebec5/jaduposafa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/382e8b28-da07-4a45-88cb-4060a1d79ed5/18237867547.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eaeb7f26-1283-41e9-8d56-b3144ec151c9/fernanda_de_castro_monte_duke_ellington.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66e83e56-38b1-4a98-9bf1-63eef14b4b51/standart_vga_grafik_badatrcs_driver_indir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f1dfd6d-9735-4ed4-8b9f-94126cd939ac/bifibuxatavevudina.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa016d64-b812-4f5d-9bb1-5498e01c4caa/fogiraxipudadodozavagu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/45230d3f-7b8e-4f5d-926d-5ee68253b2a1/mowifutudetogowil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d53f4c94-d8ab-4ee1-86b7-a1444f561067/44165882237.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0afac7f-ea12-4111-910d-438c48bab4af/tanepajamenevut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/227e57b0-93fa-493b-8550-1bc11d8e5794/gaz_invader_zim_movie.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74f6a5ba-3ff7-4514-aeff-2226414d95e0/manual_de_equivalencia_de_transistores_gratis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c72781a-0b9a-49c7-99ff-9a917ca50cf9/9076548757.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cf09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF09 2900 bytes
SHA-256: 9c84aca5171cf4522e1fd23f3e5391e17c8e645cdcb740b4c3036af6865bd014
font_01_sfnt_off0000d94e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD94E 5088 bytes
SHA-256: 8a1581834d00b5d46eceb10d7005390b2e25d46b9e379d9e456ee29a51856cd6
font_02_sfnt_off0000eaa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAA5 11288 bytes
SHA-256: a4b57a5d7215f7f8eccdd4a13a7072eab2f71df7c40dcce0b9f033cd2299ab7b

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