Malicious PDF — malware analysis report

Static analysis result for SHA-256 d501aea859a8579d…

MALICIOUS

PDF

418.1 KB Created: 2022-01-19 15:57:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-29
MD5: 4af70d6658521030870e92fa7b8b0689 SHA-1: 657d930aa424bad8e56f73169139561c59f3ae97 SHA-256: d501aea859a8579d14ace8ec3b5f0763a5deb0b573c8be2362559b2ed20e3057
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3901

Heuristics 7

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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 http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/161380b838b928---betejala.pdf In PDF document text
    • http://esteticka-stomatologie.cz/files/content/file/37829240710.pdfIn PDF document text
    • http://hotelpenza58.ru/ckfinder/userfiles/files/98557709376.pdfIn PDF document text
    • http://lapmaymn.samdigroup.vn/app/webroot/upload/files/viwodusagig.pdfIn PDF document text
    • http://vekosgroup.ru/userfiles/file/kasipigivobolepajidifes.pdfIn PDF document text
    • http://tfe-design.dk/userfiles/file/13865249107.pdfIn PDF document text
    • https://remini.hu/userfiles/file/88895728545.pdfIn PDF document text
    • http://ks-klinika.ru/ckfinder/userfiles/files/73144854499.pdfIn PDF document text
    • https://makanbanyak.net/contents/files/voxujuduvonos.pdfIn PDF document text
    • http://oresteruggiero.com/userfiles/files/25891664909.pdfIn PDF document text
    • https://www.cygnusdvlp.in/nitdurgapur/uploads/editorUploads/userfiles/files/zaretataziwibos.pdfIn PDF document text
    • https://coonvalleycc.com/userfiles/file/jolobog.pdfIn PDF document text
    • http://ljhalls.com/wp-content/plugins/super-forms/uploads/php/files/2185ea9afbc04231f79a85d40722be00/46468579050.pdfIn PDF document text
    • https://vg42.ru/public/templates/kcfinder/upload/files/terojumawib.pdfIn PDF document text
    • http://skncn.com/u/files/jozejubebaforogabilix.pdfIn PDF document text
    • http://levne-pohary.cz/UserFiles/File/76703057139.pdfIn PDF document text
    • http://musikpark-live.de/userfiles/file/dumag.pdfIn PDF document text
    • http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/1616f4b59e8f11---12085972895.pdfIn PDF document text
    • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/00e7c735adfa0ab9e68b487c0f08ce61/loselepuke.pdfIn PDF document text
    • https://keralatemples.info/ckfinder/userfiles/files/25635021987.pdfIn PDF document text
    • http://www.aktivnistari.eu/uploads/files/sivekisugixufimanaxe.pdfIn PDF document text
    • https://kidneystonetreatment.in/userfiles/files/68563007930.pdfIn PDF document text
    • http://sonnenheizung.ch/fckeditor/editor/images/file/rikigarasatesugexok.pdfIn PDF document text
    • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614f27f756d31---mofezaxomemovikak.pdfIn PDF document text
    • http://compsult.net/userfiles/file/29512497912.pdfIn PDF document text
    • http://studiomalpocher.it/userfiles/files/fixisojarewabizug.pdfIn PDF document text
    • http://arbigaz.com.tr/panel/kcfinder/upload/files/lewajewaguzanakedov.pdfIn PDF document text
    • https://rotitelor.com/contents/files/19361964421.pdfIn PDF document text
    • http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/161bb7486c45d3---bixaravobajafosenuko.pdfIn PDF document text
    • http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ce2d041478e---94148729025.pdfIn PDF document text
    • https://lhorizon.ca/uploadHorizon/file/tuziwowulurajebexidax.pdfIn PDF document text
    • http://dribblebar.pl/userfiles/file/zexujuxafanubasojesezen.pdfIn PDF document text
    • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/161727b4947e98---31566867880.pdfIn PDF document text
    • http://guide-eq.com/userfiles/file/20220102152305_e5j47g.pdfIn PDF document text
    • http://xdata.pl/app/webroot/img/ckf/files/lukiledegu.pdfIn PDF document text
    • https://valtel.si/news_images/files/99552928830.pdfIn PDF document text
    • http://a-spa.org/ckeditor/kcfinder/upload/files/99301491325.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/896FEnmJZlk/uplcv?utm_term=answer+key+for+math+5th+gradePDF link annotation
    • 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00061b77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B77 16908 bytes
SHA-256: e6af8697a39f85c15b4a76f0ed63f8e405f7694d288389c52234ebb0d53a2e5b
font_01_sfnt_off000647be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x647BE 11068 bytes
SHA-256: 62146515f6298d2edad6505abb4215a813c5aaccca82fc6ac4d28f165b3bb903
font_02_sfnt_off0006615a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6615A 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336

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