Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e65234ac4a8387…

MALICIOUS

PDF

434.1 KB Created: 2021-12-27 10:04:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 50da43810201f3085d48e7ad99b2993d SHA-1: 958a4ab3ecc77b7ec1de11ac99bc7e945d21cad8 SHA-256: d3e65234ac4a83870125c62ecb4b4036f6a46ef3edca7dd200a882de79965cf0
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5703

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://comitatoamiantovelodromo.org/userfiles/file/94871050067.pdf In PDF document text
    • https://km2804.com/ckupload/files/remumogizewulazaselimog.pdfIn PDF document text
    • http://maybaobidinhdinh.com/upload/files/94502485108.pdfIn PDF document text
    • https://bartonsteel.com/tony/barton/ckfinder/userfiles/files/zalazenito.pdfIn PDF document text
    • http://klemanpince.hu/files/file/viduwasebe.pdfIn PDF document text
    • https://www.ogsb.org/asset/ckeditor/kcfinder/upload/files/41117437068.pdfIn PDF document text
    • http://jonme.net/ckupload/files/vidot.pdfIn PDF document text
    • http://verypool.cn/images/upload/File/betidaxuzis.pdfIn PDF document text
    • http://pelesiuvalymas.lt/i/File/xiwifufemeraj.pdfIn PDF document text
    • http://systemsbiology.at/uploads/assets/file/22850686145.pdfIn PDF document text
    • https://marwaautorepair.com/nbloom/fckuploads/file/vawuzatipun.pdfIn PDF document text
    • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b6c3f831968---xawop.pdfIn PDF document text
    • http://flywings.sk/UserFiles/file/sofati.pdfIn PDF document text
    • http://cistenivytahu.cz/upload/file/pijupuvivifevizaj.pdfIn PDF document text
    • https://copab.tn/216mag.svn/uploads/files/57009089019.pdfIn PDF document text
    • http://studiomilano.eu/userfiles/files/forewizaba.pdfIn PDF document text
    • https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/21c1aa47c03a5796a1329aca76c223f8/robebazo.pdfIn PDF document text
    • http://wittsend.com/userfiles/file/zenalosolijavopepune.pdfIn PDF document text
    • https://guenangequitation.fr/www/site/js/ckfinder/userfiles/files/padekolexepupubaxotuzo.pdfIn PDF document text
    • https://showerdrainplus.com/uploads/files/202110121053345336.pdfIn PDF document text
    • http://webminmax.com/userfiles/file/16828487151.pdfIn PDF document text
    • https://mamap.in/ci/userfiles/files/naxijoxinajopowet.pdfIn PDF document text
    • http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/1615f0b65edf8c---zofalazisola.pdfIn PDF document text
    • http://smeeing.com/userfiles/files/72428916561.pdfIn PDF document text
    • https://penzionradvanice.cz/res/file/jugazadot.pdfIn PDF document text
    • http://amt-alarmy.pl/userfiles/file/vifixasawimujagimuz.pdfIn PDF document text
    • https://pushtypathshala.com/demo/aims/files/images/files/77729029312.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/xPAns0MRe5M/uplcv?utm_term=dnd+5e+guide+to+warlockPDF 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.netReferenced by PDF JavaScript
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseReferenced by PDF JavaScript

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00065188.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65188 22248 bytes
SHA-256: 1ce0b1226a13134cb842363311df302c0f8f64cacdf8084ba53c2c5cb8fd85d9
font_01_sfnt_off00068a74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68A74 10792 bytes
SHA-256: 351309da0468ecd3cd9f45fd6c448a78a5edbcec9689d59a0320df9d2179fd4c
font_02_sfnt_off0006a359.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A359 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336