Malicious PDF — malware analysis report

Static analysis result for SHA-256 26f51c8ba41cd2d6…

MALICIOUS

PDF

353.8 KB Created: 2022-04-06 20:00:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-18
MD5: 6f7eb3a34974d70e96701fa8f470b338 SHA-1: b974b888b2ffe853fa00929425c9dfdfb67d77ad SHA-256: 26f51c8ba41cd2d6209c2cb4db9ecf1c773b5d8d9ff9151fefa678972f9e34b7
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4352

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=imagine+piano+sheet+music PDF link annotation
    • https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/6b5961a06cd42e4de88c205dfcc69378/fepazegilolap.pdfIn PDF document text
    • https://www.kossuth-csepel.hu/inc/kcfinder/upload/files/viduguvamajipuje.pdfIn PDF document text
    • http://anoh.net/pds/userfiles/files/warevuxe.pdfIn PDF document text
    • http://renyixia.com/uploadfile/file/20220203205447107.pdfIn PDF document text
    • http://wittymall.com/multimedia/userfiles/file/nokafanobedisikigosobos.pdfIn PDF document text
    • http://adm-zhemtala.ru/files/files/fevaxewoderidak.pdfIn PDF document text
    • http://grafichesirio.com/userfiles/files/95970103654.pdfIn PDF document text
    • https://pecel-piok.hu/images/files/fuwamadojamozamukoronetok.pdfIn PDF document text
    • https://ijmond.web-idea.ro/app/webroot/files/userfiles/files/sutadet.pdfIn PDF document text
    • https://doellefjelde-mussemarked.dk/images/newsmail/file/gezunelewuxilanew.pdfIn PDF document text
    • https://markyatirim.com/resimler/files/91343337324.pdfIn PDF document text
    • https://akproauto.com/nbloom/fckuploads/file/72282030283.pdfIn PDF document text
    • http://webbuilders.com/files/file/kosasefotora.pdfIn PDF document text
    • https://coe-project53.istc.int/app/webroot/js/kcfinder/upload/files/kelofinigavebisowopitig.pdfIn PDF document text
    • http://mitrasejati.co.id/assets/kcfinder/upload/files/86781082824.pdfIn PDF document text
    • http://omegabg.net/media/ck/files/13380324622.pdfIn PDF document text
    • http://ceramvetro.net/userfiles/file/detifanogipekanifetevaba.pdfIn PDF document text
    • http://mwbright.com/upload_fck/file/2022-3-9/20220309090447136797.pdfIn PDF document text
    • https://ingrape.ru/files/attach/files/5247196290.pdfIn PDF document text
    • http://aiswaryamatrimonials.com/fck_uploads/file/giwevemulebiro.pdfIn PDF document text
    • https://agefrance.thpservices.com/documentos/file/pobonuwagevufuvu.pdfIn PDF document text
    • http://anpo.vn/upload/files/makim.pdfIn PDF document text
    • http://vpsystem.com/files/fck/kidepewibuwabebage.pdfIn PDF document text
    • http://glbrsciencefair.sfiab.com/data/userfiles/file/ronifeniku.pdfIn PDF document text
    • http://actinq.nl/upload/file/tedozuxidirobivaxugi.pdfIn PDF document text
    • http://brmhn.com/userfiles/file/20220406200622_k6r3ep.pdfIn PDF document text
    • http://puginternational.com/ckfinder/userfiles/files/gezonegujumem.pdfIn PDF document text
    • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1623a1c3bd632e---97368212770.pdfIn PDF document text
    • https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1621093ddccec9---rikumimedutepinowuv.pdfIn PDF document text
    • https://nepalfinepashmina.com/userfiles/file/fotexogafaratolovadada.pdfIn PDF document text
    • https://dehaventransportation.com/home/de/public_html/ckfinder/userfiles/files/13135776476.pdfIn PDF document text
    • https://trompis-tondschungel.de/userfiles/file/nijikotanuvi.pdfIn PDF document text
    • http://kp-technik.cz/ckfinder/userfiles/files/gopaki.pdfIn PDF document text
    • http://hanker.ru/web/img/files/fixozeradovave.pdfIn PDF document text
    • https://jfd.news/app/webroot/uploads/files/vekoxelo.pdfIn PDF document text
    • http://copy2d.com/ftp/image/file/roxedaludoroxivezebodo.pdfIn PDF document text
    • https://ceb.lk/assets/js/kcfinder/upload/files/36104181507.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_off00050464.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00050464.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00050464.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50464 16336 bytes
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa
font_01_sfnt_off00051a67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51A67 10728 bytes
SHA-256: 1c4a94331c028ac41fba880e2ae0bdbe973568052694ab6330e9405d3b651511
font_02_sfnt_off000532dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x532DC 16680 bytes
SHA-256: a17ef92fc87b86c156b9a677d3a093510903762d9b80da3934d9b4022dc8aaf4
font_03_sfnt_off00055e00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55E00 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1