Malicious PDF — malware analysis report

Static analysis result for SHA-256 4450316b42424e75…

MALICIOUS

PDF

520.6 KB Created: 2022-03-13 17:48:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-10
MD5: 36ffb866e876866cb53b6f2412d09fad SHA-1: b334cacd18ff3ec5f1e5a91a29e61dada5ac8185 SHA-256: 4450316b42424e752e72526f302cea20b999260ef574b916896c68b68ab1bdb6
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4359

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://loheb.co.za/XSRYdR1H?utm_term=accredited+employer+work+visa+form PDF link annotation
    • http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/162104cf6ac528---67125399441.pdfIn PDF document text
    • http://euro520.net/userfiles/file/1646636246634083806.pdfIn PDF document text
    • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/161ff98bd016c0---legojuzumewin.pdfIn PDF document text
    • http://mikllc.mn/uploads/files/56153395177.pdfIn PDF document text
    • http://cidadania23pr.org.br/ckeditor/kcfinder/upload/files/16049406330.pdfIn PDF document text
    • https://sapporopools.com/contents/files/47611866339.pdfIn PDF document text
    • https://test-ajpianos.lapetitemaisonduweb.fr/upload/files/pizikonoxipupofudipax.pdfIn PDF document text
    • http://cadex-forensique.ch/app/webroot/kcfinder/upload/files/kugutipabinonoj.pdfIn PDF document text
    • https://vatlieuxanh.vn/resources/uploads/files/2639669504.pdfIn PDF document text
    • https://talaa-obour.org/webmisr/uploadwebmisr/file/wiremixafegosarot.pdfIn PDF document text
    • http://kibbkw.com/uploads/file/814117493.pdfIn PDF document text
    • http://inlocoodontologia.com.br/assets/kcfinder/upload/files/nafufebemutoziguxibaze.pdfIn PDF document text
    • http://bjjiffy.com/upload/ruruteluxuzigidifuf.pdfIn PDF document text
    • http://mirjetours.com/uploads/lugikofexawegow.pdfIn PDF document text
    • http://albina.jp/kcfinder/upload/files/82191788916.pdfIn PDF document text
    • https://www.eclof.am/assets/ckeditor/kcfinder/upload/files/winokipasokazirogasa.pdfIn PDF document text
    • http://yjeverspeed.com/userfiles/file/53329737641.pdfIn PDF document text
    • https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/16205a059cf138---rufedowizupo.pdfIn PDF document text
    • https://prcomponents.com/ckfinder/userfiles/files/miposiwebuxudi.pdfIn PDF document text
    • https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/b8948635497580c757d73bc9dca1f863/50219925818.pdfIn PDF document text
    • http://soeurs-scjboran.fr/soeurs/upload/files/94037240448.pdfIn PDF document text
    • http://invenger.net/admin/ckeditor/kcfinder/upload/files/66922099571.pdfIn PDF document text
    • https://aleksandarshoes.com/storage/files/piwefaxolibajuxexev.pdfIn PDF document text
    • http://dvif.fr/userfiles/file/purapuw.pdfIn PDF document text
    • https://actionalbertafoundationrepair.com/nbloom/fckuploads/file/pozitesotagimupiwo.pdfIn PDF document text
    • http://yijianjiance.com/userfiles/file/20220215110920_1827849067.pdfIn PDF document text
    • https://www.osteopathe-montpellier-sud.fr/ckfinder/userfiles/files/vinuruduwun.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_off0007ae08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AE08 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0007c528.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C528 11016 bytes
SHA-256: 79291add06f2148f17ea3d53bc0ccc2aa43b7de40540e5a5d14553bf78501cb1
font_02_sfnt_off0007dee3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DEE3 19968 bytes
SHA-256: 679ea10d297762fd83813bde395749c4875a383ffdcaea05e65bd45508224f2f