Malicious PDF — malware analysis report

Static analysis result for SHA-256 441671daa25e0047…

MALICIOUS

PDF

461.3 KB Created: 2022-03-22 23:57:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-06
MD5: e3ccae0dfaf2bb657f273451ee3b9132 SHA-1: dd180a440dc167c2422bdea1cdfa1f033444b191 SHA-256: 441671daa25e0047df1e2fa3bfc69a95d0dfe4042acabb14b614aed1d7bf4621
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5342

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://siahotel.com/userfiles/files/80987325127.pdf In PDF document text
    • http://messen.kellerdesign.de/userfiles/file/lodulewilepiwut.pdfIn PDF document text
    • https://midlanddevelopers.com/backend/web/kcfinder/upload/files/98879936636.pdfIn PDF document text
    • http://denprokhorov.ru/images/file/rureloralaruz.pdfIn PDF document text
    • https://unityofmyanmar.org/images/files/watoxoxeluzewadujofaxu.pdfIn PDF document text
    • http://alteredcompta.com/buddha/ckfinder/userfiles/files/kabup.pdfIn PDF document text
    • http://gzlmjx.com/data/home/bxu2343160066/htdocs/uploadfile/files/kazizunolaxotuwavoraw.pdfIn PDF document text
    • https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/942d8348e2ad9162c90371067bd19d2d/32639118302.pdfIn PDF document text
    • https://www.gaiascience.com.my/assets/adminpanel/plugins/ckeditor/plugins/kcfinder/upload/files/juzumeralogorezosibal.pdfIn PDF document text
    • http://zenpersonnel.com/UserFiles/file/62868324136.pdfIn PDF document text
    • https://butzbacher.turnpoint.jo/app/webroot/upload/files/37410525458.pdfIn PDF document text
    • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/107df24bfb0d8e1c47e62f6d9aeb76fc/jarunetexixelusalawi.pdfIn PDF document text
    • http://stevis.cz/files/file/69733108850.pdfIn PDF document text
    • https://cathita.vn/upload/files/giwekesun.pdfIn PDF document text
    • https://doradca-bankowy.pl/files/files/rudilitipogomejijufupif.pdfIn PDF document text
    • http://coffeexclusive.co.uk/kcfinder/upload/files/giwaxawefurir.pdfIn PDF document text
    • http://chineseclothingonline.net/File/66871521863.pdfIn PDF document text
    • http://fcms.nl/KCFinder/upload/files/lusigamevixalixuxosefe.pdfIn PDF document text
    • http://daltan.hu/userfiles/file/desofogofuzex.pdfIn PDF document text
    • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1623390597094f---sekuf.pdfIn PDF document text
    • https://farsiherbal.com/cache/fck_files/file/pazidajo.pdfIn PDF document text
    • http://chronoflex-dz.com/app/webroot/assets/js/kcfinder/upload/files/71935346753.pdfIn PDF document text
    • http://aescantabria.es/upload/fckeditor/file///92192909617.pdfIn PDF document text
    • http://cuboni.com/uploadfile/hong202203112251555236.pdfIn PDF document text
    • https://inovadmin.pavicer.pt/uploads/files/xazer.pdfIn PDF document text
    • https://www.neoneophytou.com/ckfinder/userfiles/files/70627854849.pdfIn PDF document text
    • https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/h1fuecj69bpe2vbe910akfpos8/21693089877.pdfIn PDF document text
    • https://echipamente-scule.ro/userfiles/file/zakanowuxurovete.pdfIn PDF document text
    • http://malovanesklomh.cz/images/file/67679471440.pdfIn PDF document text
    • http://ctyrkolky-gamax.cz/data/dokumenty/97552616435.pdfIn PDF document text
    • https://nepalimodelagency.com/userfiles/file/82734845360.pdfIn PDF document text
    • http://robwalker.net/fckupload/file/gabimoxekiwupepogixad.pdfIn PDF document text
    • http://www.agenbenangbandung.net/file/vifiniradokafavu.pdfIn PDF document text
    • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/162326b40af13c---21347151186.pdfIn PDF document text
    • https://mifuj.co.za/XSRYdR1H?utm_term=din%C3%A2mica+rela%C3%A7%C3%B5es+interpessoais+no+trabalhoPDF 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_off0006bc32.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006bc32.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006bc32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BC32 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0006d352.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D352 11392 bytes
SHA-256: 07d09e8d1f1923102eec13b5ee9c43599698cd5278a0ff37de28d137adebe380
font_02_sfnt_off0006ecc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ECC0 21744 bytes
SHA-256: 868549bf65509a4900b7cfeb228a740ae36cbdae865b8a00aa600f777d14d2e0