Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef6e90103d4f5b1b…

MALICIOUS

PDF

251.1 KB Created: 2022-05-08 09:10:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-26
MD5: b1cfd8511ede1b1be22a40a9243a08ca SHA-1: 3cfd7b5b4a83f6b07b46d34016e0ea0fe9327a19 SHA-256: ef6e90103d4f5b1b1ec90de92b38335f13d7a18d27e530169429aa7f5a2af89f
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7139

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
  • Travel-support phone-number stuffing scam critical SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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://cafij.co.za/XSRYdR1H?utm_term=hamilton+beach+easy+reach+air+fryer+manual+downloads+download PDF link annotation
    • https://www.worldpco.org/includes/js/ckeditor/kcfinder/upload/files/53428241260.pdfIn PDF document text
    • http://snbedu.com/uploadfile/file///2022030805342775.pdfIn PDF document text
    • https://aynadakikemalizm.com/resimler/files/93840540131.pdfIn PDF document text
    • https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/1624001b4deb6e---ganujivokemifokowudiwa.pdfIn PDF document text
    • http://mapect.com/upload/fckeditor/file/65075130863.pdfIn PDF document text
    • https://hippodrome-compiegne.fr/www/uploads/file/80554373000.pdfIn PDF document text
    • http://world-green-hope.com/uploads/files/78054585154.pdfIn PDF document text
    • https://dakotaterritorydevelopment.com/ckfinder/userfiles/files/vumis.pdfIn PDF document text
    • http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/162389fdcd2f36---goravidimubex.pdfIn PDF document text
    • http://peticipate.com/sites/all/sites/peticipate.com/files/77332421647.pdfIn PDF document text
    • https://longhungphat.org/Images_upload/files/58701069306.pdfIn PDF document text
    • http://globalfeedindustry.com/upload/files/88240956245.pdfIn PDF document text
    • https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/93fbcbdb632c98f83256cf970fba566c/7449590814.pdfIn PDF document text
    • http://rockycheng.com/ckfinder/userfiles/files/nupiwafonipinebemakaxa.pdfIn PDF document text
    • http://lblussana.it/images/file/6500045088.pdfIn PDF document text
    • http://gtlitalia.com/userfiles/files/goxax.pdfIn PDF document text
    • http://ingegneriarossi.it/userfiles/files/12823687157.pdfIn PDF document text
    • https://sunsoftinfoway.net/ckfinder/userfiles/files/45965311558.pdfIn PDF document text
    • https://www.khaosanpools.org/ckfinder/userfiles/files/nolotodesipujimekudat.pdfIn PDF document text
    • https://www.datacom.com.br/assets/admin/ckeditor/kcfinder/upload/files/mufogejezaj.pdfIn PDF document text
    • https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16203ea5326114---mofamojurulovobub.pdfIn PDF document text
    • http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/ui6hns4pl6qt8dgolh37tat730/18249199787.pdfIn PDF document text
    • http://diveblubari.it/custom/archivio/files/64907724934.pdfIn PDF document text
    • http://hipscycle.simplywebeditor.com/site-uploads/fuluxuzofixajagil.pdfIn PDF document text
    • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fe980090f91---22682175653.pdfIn PDF document text
    • http://wittlich-luexem.de/userfiles/file/wefemunuxu.pdfIn PDF document text
    • http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/162693065a7b60---vemovufo.pdfIn PDF document text
    • http://syntra.pl/userfiles/file/35056923922.pdfIn PDF document text
    • http://caytrong.vn/Images_upload/files/86124662066.pdfIn PDF document text
    • https://ankaratutuncu.com/panel/kcfinder/upload/files/wipiwetovikiwusaziso.pdfIn PDF document text
    • http://drumlockingclamp.com/FCK_Editor_Images/files/797876784.pdfIn PDF document text
    • http://goldendoodlesofthesierranevadas.com/userfiles/file/guzoxenuwulovulemorefovo.pdfIn PDF document text
    • http://boletin.alicantehosteleria.com/lib/ckfinder/userfiles/files/97411021186.pdfIn PDF document text
    • https://www.iconcollege.ac.uk/AdminPanel/public/ckeditor/kcfinder/upload/files/39124207216.pdfIn PDF document text
    • http://delfosventures.com/userfiles/files/68879320375.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 extracted file (font_00_sfnt_off000379f6.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000379f6.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000379f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x379F6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0003920d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3920D 11172 bytes
SHA-256: 489015edc139638d36f8eeb2824e5d9e7ed2ebbb1890a0d382d548b6c71f9f43
font_02_sfnt_off0003abfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3ABFA 18260 bytes
SHA-256: 5d29c12c98d1a2b120563cfc88fcca7d4b1b97d779a2cc68031ec0613b59bf75