Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bc989379307015e…

MALICIOUS

PDF

329.3 KB Created: 2021-12-26 04:22:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: b0a3418d3427273a1b78d9d6389d59d2 SHA-1: bf3997e8276e63e7bdf1b2e597c425deb0bb99ff SHA-256: 3bc989379307015eb97fed9b8b3379a444a46004522316861312116d268f61f8
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7724

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://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/427372159b52b412362ce8ee6ffec516/146955152.pdf In PDF document text
    • https://endeligmandag.no/e-brev/data/div/21153476533.pdfIn PDF document text
    • http://architectureanddesign.it/userfiles/files/80674410978.pdfIn PDF document text
    • http://immodraft.eu/images/architekten_agentur_images_/file/94218297195.pdfIn PDF document text
    • http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161ac58afb6c5e---88094954285.pdfIn PDF document text
    • https://legacydockandmarine.com/wp-content/plugins/super-forms/uploads/php/files/693c7fc492e3e6500812b42de9cec6f3/robiwixisurigosavar.pdfIn PDF document text
    • http://alphamarino.kz/images/news/file/vowikikopiwarod.pdfIn PDF document text
    • https://cesiedizioni.com/userfiles/file/dulefepe.pdfIn PDF document text
    • https://arit.pbru.ac.th/book-room/admin/kcfinder/upload/files/17675388706.pdfIn PDF document text
    • https://hopadive.cz/ckfinder/userfiles/files/45299302956.pdfIn PDF document text
    • https://www.antoniopopolizio.it/ckfinder/userfiles/files/19363558513.pdfIn PDF document text
    • http://mapect.com/upload/fckeditor/file/33419815166.pdfIn PDF document text
    • http://xn--80aafmoni2biho.xn--p1ai/admin/ckfinder/userfiles/files/tajogoripixuker.pdfIn PDF document text
    • http://tachikawa-derma.biz/ckfinder/userfiles/files/90844753947.pdfIn PDF document text
    • http://northmarking.com/userfiles/files/54189330132.pdfIn PDF document text
    • https://karolinanowak.com/userfiles/file/70634001523.pdfIn PDF document text
    • http://montpellier-business-plan.fr/mbp/upload/images/images/upload/ckfinder/degewunomegewesuvapupi.pdfIn PDF document text
    • http://ghanzi.net/kcfinder/upload/files/88941116538.pdfIn PDF document text
    • http://alles-vom-schreiner.de/userfiles/file/tokoxolopugi.pdfIn PDF document text
    • http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/2863eac9346ff316871ec98a5c753dca/wufutaxaw.pdfIn PDF document text
    • http://chothuethietbi.info/img/files/gosuzumarifot.pdfIn PDF document text
    • https://igk-lilienthal.de/downloads/45592908680.pdfIn PDF document text
    • http://techsystem.gr/data/uploads/ckeditor/files/pinowemogakipuzipok.pdfIn PDF document text
    • http://botosani.ro/img/uploads/file/kewabez.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/4dZi1sgP-vI/uplcv?utm_term=peak+performance+physical+therapyPDF 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_off0004babf.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004babf.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004babf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BABF 16972 bytes
SHA-256: e390a516ff4dbd3be25819cdc53933f7ab6ffa27f8ac23e03f5c434f3bbcf875
font_01_sfnt_off0004e6b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E6B1 10952 bytes
SHA-256: e2235989b0699cd7372ffdcf43afb67df95fa410d99fdf96da7ccc96b0548f23
font_02_sfnt_off0004fffa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FFFA 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336