Malicious PDF — malware analysis report

Static analysis result for SHA-256 793f82ce4950c707…

MALICIOUS

PDF

247.5 KB Created: 2022-03-23 11:19:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: d5c51408a88416229704f8b3af061b04 SHA-1: 0621f268c3ac5211710a707264781a5aad8068d4 SHA-256: 793f82ce4950c707b217027233ff782bb08f6ae564fba1b3b3b1f6414f07360b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9462

Heuristics 6

  • 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.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://norin.co.za/XSRYdR1H?utm_term=505+arctic+monkeys+lyrics PDF link annotation
    • https://iagclaims.endataclaims.com/ModCoreFilesUploaded/file/37754905786.pdfIn PDF document text
    • http://bibrka-school.org.ua/ckfinder/userfiles/files/kikokimugowupapipowivokab.pdfIn PDF document text
    • http://ohxto.com/uploaded_files/userfiles/files/55721734790.pdfIn PDF document text
    • http://dorp.pl/userfiles/files/97347833089.pdfIn PDF document text
    • http://strahovka66.ru/userfiles/file/71425926638.pdfIn PDF document text
    • http://phuwangnam.com/user_file/file/roxekonugewavenej.pdfIn PDF document text
    • http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16209ed941e2b4---15617220042.pdfIn PDF document text
    • https://worldpigment.com/image/upload/File/sadifevi.pdfIn PDF document text
    • https://sasalidayanisma.org/uploads/file/dibifu.pdfIn PDF document text
    • http://noavarservice.com/ckfinder/userfiles/files/75845742848.pdfIn PDF document text
    • https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/234d98d4b677fd156bec92edf698be99/41720921553.pdfIn PDF document text
    • https://portoggitter.no/content/files/userfiles/file///25762605195.pdfIn PDF document text
    • http://borik.customreal.sk/data/files/sezej.pdfIn PDF document text
    • http://uktohabbarijamalta.com/files/file/93809923196.pdfIn PDF document text
    • http://fishingas.com/userfiles/file/bisudulaxofowi.pdfIn PDF document text
    • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/161fd798b9f64a---3252555564.pdfIn PDF document text
    • http://www.klub112.cz/upload/files/48420923952.pdfIn PDF document text
    • https://kp-bs.ru/upload/files/benirawasenuxuliveje.pdfIn PDF document text
    • http://gzpropellers.com/uploadfile/files/70295952618.pdfIn PDF document text
    • http://cttinteriery.cz/files/upload/files/88710531855.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000375ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x375FF 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00038d1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38D1A 16388 bytes
SHA-256: 859052fd4b508815e0e753f7553c0bcde6d59066c7f4688abd91bbb803c23aea
font_02_sfnt_off0003b704.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B704 10756 bytes
SHA-256: ea43d429d39e9f9a349c13d2b2f65eed21bf80d1bb095a0cb8237bd3cae556f4

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