Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d31215e3cd96545…

MALICIOUS

PDF

443.6 KB Created: 2022-02-13 21:13:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-14
MD5: 84340309d108816b63fdbd8c5893e0d8 SHA-1: d76aa1217bd0cc7f14cc8b40aa50ee329282118f SHA-256: 5d31215e3cd9654511ad82f65f054211072ce0fc9e403340779b6885346c724f
191 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5201

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://kozmetikadunakeszi.hu/userfiles/file/38784555879.pdf In PDF document text
    • http://sgyscom.com/upload_fck/file/2021-8-27/20210827210933817274.pdfIn PDF document text
    • http://ksiclubbiz.ksiclub.org/svnprojects/DHD/Source/images/files/vaxaxifuxumari.pdfIn PDF document text
    • http://kkagro.com/media/images/upload/file/vekuladulab.pdfIn PDF document text
    • https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614de2918a706---tizifadupivutigoxa.pdfIn PDF document text
    • http://ssmsuits.com/kcfinder/upload/files/gakuniligezopo.pdfIn PDF document text
    • http://stopguepes72.fr/userfiles/file/55743514778.pdfIn PDF document text
    • http://sethhukumchandschool.com/userfiles/file/pezimukebazuf.pdfIn PDF document text
    • https://danielfelber.ch/userfiles/file/15892093078.pdfIn PDF document text
    • http://sp3siemianowice.pl/userFiles/files/wigolepopimurejab.pdfIn PDF document text
    • https://anpheatingandac.com/nbloom/fckuploads/file/liwatosolezewotopazel.pdfIn PDF document text
    • http://kasintorn.com/images/upload/files/lovuxizoxularojiza.pdfIn PDF document text
    • https://ip-pharma.net/data/files/32285810635.pdfIn PDF document text
    • http://bannhuaduong.net/upload/files/80066711661.pdfIn PDF document text
    • http://audiohrestomatiya.ru/content/file/11749557746.pdfIn PDF document text
    • http://vodnik48.ru/content/file/fumiratowaxaxuxekuvi.pdfIn PDF document text
    • https://istanajp.com/contents/files/sefexalowoj.pdfIn PDF document text
    • http://bajcsidavidfoto.com/_user/file/niwonuzifirawo.pdfIn PDF document text
    • https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/6398762669fd025a421577138752edf5/80522534080.pdfIn PDF document text
    • http://daliangluyinpeng.com/userfiles/file/sulajinuwesolozilen.pdfIn PDF document text
    • http://osoboebludo.com/ckfinder/userfiles/files/75175302000.pdfIn PDF document text
    • http://t-eamplus.de/web/editor/files/36220135939.pdfIn PDF document text
    • http://longarmquiltacademy.net/fckeditor/userfiles/file/15022984511.pdfIn PDF document text
    • https://1am130r6h1n1-k11a7.com/contents/files/sajanumasaxemegapi.pdfIn PDF document text
    • https://1000fdep.talenzsoftware.fr/upload/files/76521716888.pdfIn PDF document text
    • https://www.acta-mobilier.fr/ckfinder/userfiles/files/44458633039.pdfIn PDF document text
    • http://www.onlinenieuwsbriefversturen.nl/gebruikers/afbeeldingen/86886051930.pdfIn PDF document text
    • http://dsagco.com/Upload/file/65789350618.pdfIn PDF document text
    • http://www.gunyagder.org.tr/wp-content/plugins/super-forms/uploads/php/files/ooe1s4gdlkiqjjk6s4bg6cjke2/75759798468.pdfIn PDF document text
    • https://ichibaninfotech.com/ckfinder/userfiles/files/74073904011.pdfIn PDF document text
    • https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/3a7e6baa63aac32c3dd4d66042a512c6/fevad.pdfIn PDF document text
    • http://revucue.com/ckfinder/userfiles/files/wewifiram.pdfIn PDF document text
    • http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16185baabcd125---21638220575.pdfIn PDF document text
    • http://muasamhangmy.com/ckfinder/userfiles/files/xumoserufuri.pdfIn PDF document text
    • http://boathousebrokerage.com/userfiles/file/62865782945.pdfIn PDF document text
    • https://ragaz.co.za/XSRYdR1H?utm_term=executive+incentive+compensation+plan+templatePDF 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 extracted file (font_00_sfnt_off00068198.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00068198.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00068198.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68198 17400 bytes
SHA-256: f87ece8738f714c92a8a9e8e7661174e67a30d96a6af1a354a8868c4dcdc5964
font_01_sfnt_off0006aea1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AEA1 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0006c5c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C5C1 10684 bytes
SHA-256: 4bc4bd3629b173c4e8cd32bff297badb0991912d0c17034eddf172f554b6450a