Malicious PDF — malware analysis report

Static analysis result for SHA-256 d50f613509aa8cc5…

MALICIOUS

PDF

492.0 KB Created: 2022-04-28 20:49:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-29
MD5: e5332bcbf658fde0e91e2bb945d8a645 SHA-1: 81b5cc2f94bdf01e3118028ed9065eaab1ecbd24 SHA-256: d50f613509aa8cc5571898dc73dbc998460eda3ea43c84b51ec4d0b1a41c9de5
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5472

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://yoyep.co.za/XSRYdR1H?utm_term=independent+and+dependent+variable+science+worksheet PDF link annotation
    • https://sirazetagur.weebly.com/uploads/1/3/5/3/135328448/3619195.pdfIn PDF document text
    • https://hungarogun.hu/feltoltes/files/jeliweti.pdfIn PDF document text
    • http://www.senioradviserab.se/admin/kcfinder/upload/files/93019556132.pdfIn PDF document text
    • https://sca-eagleegg5k.com/ckfinder/triplebuserfiles/file/jifibilejoji.pdfIn PDF document text
    • http://kompaspt2.com/contents/files/51891264120.pdfIn PDF document text
    • https://gozamenoxewopob.weebly.com/uploads/1/4/1/4/141423769/ramimadotu.pdfIn PDF document text
    • https://dansobentre.net/uploads/file/lugaxedanobevopani.pdfIn PDF document text
    • https://sepoxoritafide.weebly.com/uploads/1/3/1/4/131438330/jetadiwedenivej_xudusape.pdfIn PDF document text
    • https://investincarpathians.eu/app/webroot/media/files/misusewupubozupi.pdfIn PDF document text
    • https://xisobapujizutu.weebly.com/uploads/1/3/4/5/134585888/votixelo-zunabojepago-gevud-koveza.pdfIn PDF document text
    • http://klaaswester.nl/img/file/21235859360.pdfIn PDF document text
    • https://josabekani.weebly.com/uploads/1/4/1/3/141300095/4756087.pdfIn PDF document text
    • http://hanahana.vn/media/ftp/file/44803865090.pdfIn PDF document text
    • https://flavio-tonon.it/public/file/53647276011.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16239905949610---42743261969.pdfIn PDF document text
    • https://libepipo.weebly.com/uploads/1/4/1/3/141389389/2939863.pdfIn PDF document text
    • https://lutilaxo.weebly.com/uploads/1/3/4/5/134599665/biludol.pdfIn PDF document text
    • https://bagawilikazukir.weebly.com/uploads/1/3/1/0/131070307/samidisemivonagol.pdfIn PDF document text
    • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1620be7f0a681d---15337777502.pdfIn PDF document text
    • https://beyondmywalls.com/data/files/bakisubuvugizukel.pdfIn PDF document text
    • https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/457c41fd4b5648cc0a530bdcd799b4f9/20207524460.pdfIn PDF document text
    • https://tejaxoxujita.weebly.com/uploads/1/3/4/3/134368030/a0dbe043.pdfIn PDF document text
    • https://warungmimpishio.com/contents/files/purodipatu.pdfIn PDF document text
    • https://kijiwutexaji.weebly.com/uploads/1/3/4/6/134698992/7573972.pdfIn PDF document text
    • https://tixanesel.weebly.com/uploads/1/3/4/2/134234664/388e91.pdfIn PDF document text
    • https://zetitazafoxiz.weebly.com/uploads/1/3/4/0/134040412/a3ae1c927ac00ed.pdfIn PDF document text
    • https://share.linkilike.com/libraries/kcfinder/upload/files/30112678487.pdfIn PDF document text
    • https://sobuxiba.weebly.com/uploads/1/3/4/8/134867950/823019.pdfIn PDF document text
    • http://studiospazioambiente.it/userfiles/files/gujokadasegar.pdfIn PDF document text
    • https://gasinokumujum.weebly.com/uploads/1/3/1/4/131437883/vakojinama_pumodubesidedeb_jiwutexema.pdfIn PDF document text
    • http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16213523a05df5---rekekivubuj.pdfIn PDF document text
    • http://www.companyforte.com/imagenes/editor/file/40432080856.pdfIn PDF document text
    • https://wajewuxenax.weebly.com/uploads/1/4/1/3/141391133/depubewukotesijabodu.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_off00074070.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74070 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00075882.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75882 17976 bytes
SHA-256: 933d4977357713db461b93e6457fb6ff00e64e0b3268c50aa75dfd77ef02c4af
font_02_sfnt_off00078726.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78726 10948 bytes
SHA-256: 20a55b3f343e4a7b61d3a6b523ac41f0af715ce6741875e69cc50f8bbb44e23e