Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d88f62f5d9442af…

MALICIOUS

PDF

315.6 KB Created: 2021-12-22 18:20:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: cbf79df1d419d47a97ab80dfe8cdcf05 SHA-1: c4268a06bb992284e3070174cdf7796290f8ad64 SHA-256: 5d88f62f5d9442af7b736c85c0a474c3e955308952aae97d6e2eef51916e5c20
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8005

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 http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/1619694cd13504---11022366826.pdf In PDF document text
    • http://air-con.ru/upload/files/tikemedejedim.pdfIn PDF document text
    • http://freeski.hu/freeski/file/mosose.pdfIn PDF document text
    • https://angkoronetour.com/userfiles/file/kusegadiwisajagij.pdfIn PDF document text
    • https://abcelectricalonlineshop.brilliantwebtech.com/userfiles/files/33524567597.pdfIn PDF document text
    • http://duda-tech.pl/dudatech/upload/file/kapar.pdfIn PDF document text
    • http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616978194f4ac---vavazavotuxaja.pdfIn PDF document text
    • http://liveisagenix.com/ckfinder/userfiles/files/sobivutov.pdfIn PDF document text
    • http://messtores.ca/fck_user_files/file/baxinunujawekitetaperuk.pdfIn PDF document text
    • https://efficimm.fr/userfiles/files/30212165714.pdfIn PDF document text
    • https://alrukn.co/userfiles/files/nusadaz.pdfIn PDF document text
    • https://ever.dacola.com/upload/files/9963267443.pdfIn PDF document text
    • http://homokkepek.hu/editor_up/tudoturoxixeguwafudafo.pdfIn PDF document text
    • http://hotelbellevuepalermo.com/userfiles/files/sanonu.pdfIn PDF document text
    • https://bipalisdemo.dashindonesia.com/userfiles/files/73585097508.pdfIn PDF document text
    • https://vivaldiroberto.com/img/files/mediafiles/file/64061293115.pdfIn PDF document text
    • http://gerastar.com/userfiles/file/15797314302.pdfIn PDF document text
    • http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/78bf08dbff82f46940464e5cf7bc68e5/bedubinunivorigonofigami.pdfIn PDF document text
    • http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/16177063eda38a---mipimogatekasibem.pdfIn PDF document text
    • https://kimcert.net/E/file/53391579848.pdfIn PDF document text
    • https://drivetripper.com/userfiles2020/files/16741759522.pdfIn PDF document text
    • https://spandoekland.nl/userfiles/file/fabegujifo.pdfIn PDF document text
    • https://kibledergisi.net/resimler/files/42087384893.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/TSvcnjQ06Jg/uplcv?utm_term=casta%C3%B1er+campesina+canvas+platform+espadrillesPDF 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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00047f57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47F57 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off000495f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x495F6 17496 bytes
SHA-256: d155520ea7a4ea3f2d66ccd35ee47fbd9438956ada390eab1bcc4f40364aee4d
font_02_sfnt_off0004c39d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C39D 11084 bytes
SHA-256: 97695df385286622d528df58bdb9b8f6e6a8f1a5ed3b854d2d01318c5a908382