Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b248814301ac53…

MALICIOUS

PDF

350.2 KB Created: 2021-12-24 00:46:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: b02a53ace7c7a6ce275fa0942c98aff1 SHA-1: 89d9951373ffd4f48e41b72a61ef0cc3f97023f2 SHA-256: 72b248814301ac5339f6c14d925fc80dacc496c41667c2e49b344ffd3e39d654
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7916

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://wastran.ru/uplcv?utm_term=top+graphic+android+games+2018 PDF link annotation
    • http://avision-italia.com/userfiles/files/90273231350.pdfIn PDF document text
    • https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/4uik9pr741245jacppgptifuvu/26044480487.pdfIn PDF document text
    • https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619812a563f41---tovasus.pdfIn PDF document text
    • http://zzzwchem.com/upload/files/65265793014.pdfIn PDF document text
    • http://yoron.net/up/files/83100003949.pdfIn PDF document text
    • https://tlkingatlan.hu/kepek/other/file/xanigajumipexoguderokape.pdfIn PDF document text
    • http://cy2hand.com/userfiles/9689621673.pdfIn PDF document text
    • http://atoutslegion.com/userfiles/file/busolexiwam.pdfIn PDF document text
    • https://dovolena-jiznicechy.cz/uploads/86355715362.pdfIn PDF document text
    • https://www.akita-tourism.com/assets/admin/plugins/kcfinder/files/8980464206.pdfIn PDF document text
    • https://cambodiaangkorhomestay.com/userfiles/file/31605916833.pdfIn PDF document text
    • http://glamour-nsk.ru/ckfinder/userfiles/files/pevafulesanonowitexolanuv.pdfIn PDF document text
    • https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/5da9acbf0f67b4c615b2dd2ee1720bf0/foxunonejenefajuwad.pdfIn PDF document text
    • https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/b4324f25bf273d9777ffdfa5619f9e14/33113521794.pdfIn PDF document text
    • http://duetsepolno.pl/userfiles/file/jeduzorodozabopej.pdfIn PDF document text
    • http://sushiyaslo.com/uploads/files/rometiravobemubokodijip.pdfIn PDF document text
    • https://vatlieuxanh.vn/resources/uploads/files/64438867677.pdfIn PDF document text
    • http://csc0731.com/userfiles/file/20211222090709_vz4i2c.pdfIn PDF document text
    • https://albertoangel.sinecsas.com/ckfinder/userfiles/files/rewufogadi.pdfIn PDF document text
    • http://kibbkw.com/uploads/files/8052944371.pdfIn PDF document text
    • https://residenciasanamaro.es/userfiles/files/67087508407.pdfIn PDF document text
    • http://occahomesearch.com/userfiles/files/kubuvutevazalo.pdfIn PDF document text
    • http://etabetasurvey.com/userfiles/files/13641820027.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_off00050e5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50E5E 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off00052502.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52502 11284 bytes
SHA-256: 49f79a78c78bf711136ab181cfbe3ce23c85a83161b19d758bb13a019b349cce
font_02_sfnt_off00053f2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53F2B 16628 bytes
SHA-256: 738b1cdac917f1d35cdfe639c86c82579cc5f2e5fbc08ad44ccfd33349d4ae8f