Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7464c370b0a78b…

MALICIOUS

PDF

71.6 KB Created: 2021-10-07 22:13:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 3f46678954b146330de9d9ff40123eb6 SHA-1: fb76863a688a668ba5dd11b443bfb9c99929f7aa SHA-256: cd7464c370b0a78bc7f075c7b6f6e6989f25e686b573f9fc344aa890558863a7
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://drafthe.ru/uplcv?utm_term=sum+to+infinity+equation PDF link annotation
    • https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613850ad86da5---72833467412.pdfIn PDF document text
    • http://eqletstalk.com/uploads/files/202109060426181537.pdfIn PDF document text
    • http://cps-mbstu.edu.bd/app/webroot/js/ckfinder/userfiles/files/zigivufujoso.pdfIn PDF document text
    • https://currenwatch.myhost360.cn/file/upload/files/09-15-21-22-23-25.pdfIn PDF document text
    • http://humansharehouse.com/userData/board/file/42909007310.pdfIn PDF document text
    • http://vers-ma.de/userfiles/file/kejobiwowegunajemasul.pdfIn PDF document text
    • http://laconchigliacasevacanze.it/userfiles/files/52589437910.pdfIn PDF document text
    • http://koszyczarek.pl/userfiles/file/33201934915.pdfIn PDF document text
    • http://studiogeologicotrilobite.com/userfiles/files/fonaxigeril.pdfIn PDF document text
    • https://nocnepal.org.np/ckfinder/userfiles/files/83491548743.pdfIn PDF document text
    • https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/1b306dea64ee44304e3c4e421dab294d/76584930195.pdfIn PDF document text
    • http://huyminhplastic.com/upload/files/wemolirevaxisutigasekul.pdfIn PDF document text
    • https://mygoaltv.org/ipp/images/uploads/files/sefejisarotosemutuvaludab.pdfIn PDF document text
    • https://berettyotv.hu/userfiles/files/kukumexofilufisar.pdfIn PDF document text
    • http://rayanchem.com/d/files/dotelamijulerobef.pdfIn PDF document text
    • https://leganordavigliana.com/uploads/file/26986682069.pdfIn PDF document text
    • https://sambelteri.com/contents/files/kazoborejoxokoluteje.pdfIn PDF document text
    • http://honeycontacts.com/uploades/userfiles/file/30111307080.pdfIn PDF document text
    • http://cbstav.cz/file/39960779430.pdfIn PDF document text
    • https://servicio-mexico.com/images/file/30423205481.pdfIn PDF document text
    • http://xn--franzsischebulldoggen-lec.eu/userfiles/file/kagomanunuvakaxuw.pdfIn PDF document text
    • http://turningpointdigital.com/cote_dor_import/admin/ckfinder/userfiles/files/279853266.pdfIn PDF document text
    • https://norservis.info/files/files/webopojajarozosotosubozo.pdfIn PDF document text
    • https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1615efe70a3c9c---zirilitevajojivez.pdfIn PDF document text
    • http://szsahsh.com/uploads/files/jedasotugukovekemuwe.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_off0000b8e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8E0 10496 bytes
SHA-256: 8742d7f46159ee574cfe96fcd3851898dc93927d15fb5ced6c686ee1efcd4096
font_01_sfnt_off0000d0d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0D2 15532 bytes
SHA-256: 2948fea42c7e6fed38e958527be68ab35af80c1d9b1e5949f473cf219fd3ec72
font_02_sfnt_off0000f885.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF885 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1