Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc72a600d3290da…

MALICIOUS

PDF

449.5 KB Created: 2022-03-04 16:49:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: 949be99467cf567723c1306214edcb6b SHA-1: b2eed0925c4b2fa7bd82b6bd641192099c707e7b SHA-256: 1dc72a600d3290da882980cf33854f5a78159cff3c9e009ab5ef1615a7c6a049
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4959

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://loheb.co.za/XSRYdR1H?utm_term=esl+thanksgiving+worksheets+elementary PDF link annotation
    • http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1621fbeeb8bdc3---jukojovidunadudowi.pdfIn PDF document text
    • http://art-wonders.com/ckeditor/ckfinder/core/connector/php/uploads/files/nubaxugixatamowaziji.pdfIn PDF document text
    • http://fantalife.nl/userfiles/file/fugelaxoturuxitanasitodig.pdfIn PDF document text
    • http://kawarulabo.com/app/webroot/js/kcfinder/upload/files/60705767119.pdfIn PDF document text
    • http://orsini-blasioli.it/userfiles/files/kolulope.pdfIn PDF document text
    • http://iqlacpro.vn/emotive/upload/files/72308429247.pdfIn PDF document text
    • http://neboskreb-irk.ru/uploads/userfiles/files/16031766050.pdfIn PDF document text
    • http://phantasos.org/userfiles/file/56206526707.pdfIn PDF document text
    • http://gira-classix.su/kcfinder/upload/files/54573188147.pdfIn PDF document text
    • http://serviphony.com/tinymce/jscripts/tiny_mce/plugins/phpimage/phpimage/upload/images/file/xodogoxelenesizixoxuro.pdfIn PDF document text
    • http://henskeschildersbedrijf.nl/upload/gafopolefimubamuk.pdfIn PDF document text
    • http://pachinko-seminar.com/sites/default/files/file/97431271086.pdfIn PDF document text
    • http://www.sunriseacademy.in/ckfinder/userfiles/files/88933329739.pdfIn PDF document text
    • https://musicalfamilytree.com/files/gebotirex.pdfIn PDF document text
    • http://hondatayho.vn/images/ckeditor/files/xagoz.pdfIn PDF document text
    • http://hankook-system.com/userData/ebizro_board/file/15397820801.pdfIn PDF document text
    • https://g-tet.com/uploadedfiles/file/94933395842.pdfIn PDF document text
    • http://www.horakgolf.cz/ckfinder/userfiles/files/rutevopolibokufiduluba.pdfIn PDF document text
    • https://securitydm.com/slicice/file/6953582770.pdfIn PDF document text
    • http://administracja.iptourism.com/UserFiles/File/97414762033.pdfIn PDF document text
    • https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/5949f5ece2868390cfbd75f92b4e0f4b/lepexubekanorajizi.pdfIn PDF document text
    • https://capitalsyndic.com/userfiles/file/sajerolagikep.pdfIn PDF document text
    • https://kp-bs.ru/upload/files/7841629087.pdfIn PDF document text
    • http://bilcafe.it/userfiles/file/82275188601.pdfIn PDF document text
    • http://eksternest.be/images/file/patotunezudalaxirobu.pdfIn PDF document text
    • http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/161f8fd8a6e5ef---855919750.pdfIn PDF document text
    • http://leeclinic.kr/userData/board/file/39118058626.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_off000692d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x692D3 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0006a9ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A9EE 19992 bytes
SHA-256: 30dfaa6ddf6b63784759b4d46cf47910b4bc6743480dd076d02bfba4d987c1c7
font_02_sfnt_off0006dd79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DD79 10896 bytes
SHA-256: d11bf6fac22c1b4642bf6600597b875480781174c63a5ecaafc677b8d4297d8f