Malicious PDF — malware analysis report

Static analysis result for SHA-256 4afaeff9770428bf…

MALICIOUS

PDF

313.2 KB Created: 2022-02-24 04:04:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: b2b49926571d2da6d8828efda930cb99 SHA-1: 70da4123290a13baa47b0af270f5942ec0947eeb SHA-256: 4afaeff9770428bff56d8591cffd25802753bd585a25236b171679f1392f6338
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6874

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 https://fecuq.co.za/XSRYdR1H?utm_term=vcruntime140_app.+dll+file PDF link annotation
    • http://mentoslaci.hu/admin/kcfinder/upload/files/85123601127.pdfIn PDF document text
    • https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/mmvjsbis8h5t8jd7rbs3ubgdbi/nabafadijijoligoz.pdfIn PDF document text
    • http://fosterfreezesantarosa.com/uploads/files/4293052904.pdfIn PDF document text
    • https://poldercuptrofee.nl/site/admin/ckfinder/userfilesfiles/vidakofuguxavakisedux.pdfIn PDF document text
    • http://multi-accueil.fr/ressource/site-image/files/85536337268.pdfIn PDF document text
    • http://pandoraecza.com/genelresimler/file/jabox.pdfIn PDF document text
    • https://bagstyle.uz/images/file/fokebarizogazonumadela.pdfIn PDF document text
    • https://pfhotel.gr/ckfinder/userfiles/files/xufoxelovob.pdfIn PDF document text
    • http://giovanniseneca.eu/userfiles/files/24436707152.pdfIn PDF document text
    • http://www.facyt.com.ar/ckfinder/userfiles/files/sipufuwutolaginojopij.pdfIn PDF document text
    • http://phantasos.org/userfiles/file/72131419486.pdfIn PDF document text
    • http://jun-travel.com/userfiles/file/rimabenuzopugojopibapig.pdfIn PDF document text
    • http://clinicaveterinariaalbese.eu/userfiles/files/75076467617.pdfIn PDF document text
    • https://cpsguffanti.com/uploads/file/gujekivofovuzesesubovene.pdfIn PDF document text
    • http://blog-lunettes.top-lunettes.com/userfiles/file/57893522167.pdfIn PDF document text
    • https://ikomsolutions.com/admin/userfiles/file/bukufebepubawopu.pdfIn PDF document text
    • https://skidnapping.com/uploadfiles/files/safalufubegu.pdfIn PDF document text
    • http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/1617b9931f0339---tekubiz.pdfIn PDF document text
    • http://dar-tom.pl/userfiles/file/79749062698.pdfIn PDF document text
    • http://densayhongngoai.com/uploads/userfiles/file/25823492726.pdfIn PDF document text
    • http://pattarasawat.com/ckfinder/userfiles/files/ferorutigaveredudadu.pdfIn PDF document text
    • http://fruhmann-elektrotechnik.at/41053194689.pdfIn PDF document text
    • http://durgaenergy.com/assets/kcfinder/upload/files/59301946407.pdfIn PDF document text
    • https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/5db074e821ca43608770e8c5e294d685/82733861051.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620c5b7a2fe64---siladebelebumukinesax.pdfIn PDF document text
    • http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161330ec1937a7---67311141870.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00045cdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45CDC 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000473fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x473FC 10912 bytes
SHA-256: 17d5781aee78d9e572b568d7b695b50c942d208383f2bc22c6a906bc17fcd517
font_02_sfnt_off00048d50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48D50 16336 bytes
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa
font_03_sfnt_off0004a34e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A34E 19360 bytes
SHA-256: 06ce56f5515af10b45d4c6debbd586da917af878dff5b5561ef437635ae7c3ae