Malicious PDF — malware analysis report

Static analysis result for SHA-256 af283ef7469880cc…

MALICIOUS

PDF

581.5 KB Created: 2022-04-01 13:00:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 4b90e0e8060d1f26f3e0c1bb0a1ad28e SHA-1: 9015dd6e356690f790649b4d7d2b8e0b1f22933f SHA-256: af283ef7469880cc53a31798d7c70325d3e7a879a82149fcaf762f6fae25c339
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3568

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 https://fecuq.co.za/XSRYdR1H?utm_term=free+funny+ringtones+for+android PDF link annotation
    • https://learnrkb.jugalbandiresearch.com/ckfinder/userfiles/files/80608055982.pdfIn PDF document text
    • https://jlewandowski.pl/files/files/83053086623.pdfIn PDF document text
    • https://jadetikoj.weebly.com/uploads/1/3/5/3/135350844/b59978a756d.pdfIn PDF document text
    • https://www.starvisaservices.co.uk/application/elements/plugins/kcfinder/upload/files/82141859053.pdfIn PDF document text
    • https://riwominejakubik.weebly.com/uploads/1/3/4/5/134598273/6393d1d9fa4b4.pdfIn PDF document text
    • https://www.kidilangues.fr/js/kcfinder/upload/files/fuzarupa.pdfIn PDF document text
    • http://phuketdriveschool.com/userfiles/file/rafotejin.pdfIn PDF document text
    • https://ateliersmq.com/pevron/www/img/file/440274361.pdfIn PDF document text
    • http://aarogyamedico.com/userfiles/file/zivojovedodigogowixuve.pdfIn PDF document text
    • https://tufanemoxidubux.weebly.com/uploads/1/3/4/3/134315727/rivebibudu.pdfIn PDF document text
    • https://discovery99.com/userfiles/file/29709748812.pdfIn PDF document text
    • https://wojosonasejedop.weebly.com/uploads/1/3/4/6/134613238/4e7d5a159fba.pdfIn PDF document text
    • http://uklearningnetwork.com/userfiles/file/83397773082.pdfIn PDF document text
    • http://bagliodeimille.it/userfiles/files/34243297449.pdfIn PDF document text
    • http://tfforming.ru/d/files/27057925995.pdfIn PDF document text
    • http://nh3.ifca.com/userfiles/file/76903862877.pdfIn PDF document text
    • https://ketdoanbus.com/webroot/img/files/lalemetalow.pdfIn PDF document text
    • https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/fe2bcf6f44279b90ef0f38c356460300/tenel.pdfIn PDF document text
    • http://vertracapital.com/uploads/files/segavej.pdfIn PDF document text
    • http://runo34.ru/attachments/file/6543889542.pdfIn PDF document text
    • http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fec7e61c464---riwotow.pdfIn PDF document text
    • http://arc-exir.ir/cache/fck_files/file/xemozevagase.pdfIn PDF document text
    • https://rioclaro.com.co/kcfinder/upload/files/nesuxadajaxivemuzokewimug.pdfIn PDF document text
    • http://comercialardevolana.net/admin/kcfinder/upload/files/46493260412.pdfIn PDF document text
    • http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/162200fb58ac5a---sabigonojuvaso.pdfIn PDF document text
    • http://geyikkimya.com/userfiles/upload/file/gapumetusekuxodisiredob.pdfIn PDF document text
    • http://flathead.herosuite.com/userfiles/file/98216271253.pdfIn PDF document text
    • https://chennothinterios.com/uploads/file/gunimodevimumoda.pdfIn PDF document text
    • https://pakistanchristiancongress.org/userfiles/file/20050515529.pdfIn PDF document text
    • http://lmleadmanagement.com/userfiles/files/sokitujon.pdfIn PDF document text
    • http://spakimthi.com/upload/files/63053579279.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0008a5c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A5C9 18256 bytes
SHA-256: d6269f802bdf3ceaad7efa8d416c11599c3567330de190b39af98cc2228a9f00
font_01_sfnt_off0008d59c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D59C 10676 bytes
SHA-256: f774e3364eee0d05360e951746e03a16be6cacf3a9ffe208b4249dd4459f6486
font_02_sfnt_off0008ee08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EE08 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1