Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e4557027b8a77a…

MALICIOUS

PDF

69.1 KB Created: 2021-12-13 19:34:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 4654c8f4475557a806dd0dbe16e8e4c0 SHA-1: dfcc1db80750c7f3d334e2b8f12aa926b5950711 SHA-256: d3e4557027b8a77a0dfbe0eb1bb5c22b92dd593415dec05cdc948832a526586f
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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://huntic.ru/uplcv?utm_term=ford+3000+tractor+for+sale PDF link annotation
    • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1617ec80896a2e---10311986768.pdfIn PDF document text
    • https://krossi.ru/images/content/files/4791330563.pdfIn PDF document text
    • http://kondicionery-noginsk.ru/upload_picture/file/xiragamutili.pdfIn PDF document text
    • https://anaksemut.com/contents/files/5072113798.pdfIn PDF document text
    • http://kurskodkb.ru/page_edit/_samples/userfiles/files/lawegamazoxum.pdfIn PDF document text
    • https://drproperty.org/userfiles/file/vusiwabegajifi.pdfIn PDF document text
    • https://baxsporthorses.com/userfiles/file/80795099683.pdfIn PDF document text
    • http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/8547b0bf8940b55a422f23167ed147f8/suxolonimapitezaro.pdfIn PDF document text
    • https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/16163978e26e5b---dofuxin.pdfIn PDF document text
    • http://peach2560.xyz/js/ckfinder/userfiles/files/dalanasinivi.pdfIn PDF document text
    • https://beldapromosyon.com/calisma2/files/uploads/45915210478.pdfIn PDF document text
    • http://homeloanz.net/images/e/file/69029542119.pdfIn PDF document text
    • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615a33e24c86f---72667998360.pdfIn PDF document text
    • http://sobinco.cz/ckfinder/userfiles/files/bulotuzukizefaludedowet.pdfIn PDF document text
    • http://kbautotech.com/board/datafiles/imagefile/72388838941.pdfIn PDF document text
    • http://morard-mcf.fr/data/Files/jowisubuzemozobebiw.pdfIn PDF document text
    • http://fikszo-whc.com/userfiles/files/raxepovan.pdfIn PDF document text
    • https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/6e7aae058d8db1bf1984c1bcc89738a8/povejipokem.pdfIn PDF document text
    • https://crawfordpoint-ca.seeninherd.com/files/2618797650.pdfIn PDF document text
    • https://chsins.tw/uploads/files/202110230733182641.pdfIn PDF document text
    • http://chokmanee.com/userfiles/file/38227479698.pdfIn PDF document text
    • https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/s4bstruo0f79u2b3h2tubj88a9/kesiwebufupexafa.pdfIn PDF document text
    • https://arte-salon.ru/upload_picture/litafav.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_off0000abdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xABDB 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000c27f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC27F 10544 bytes
SHA-256: 5aae53558a70ed93ce1d0b63aa748eda8a4f383652e0ccd5fb2c19ff14aa9f36
font_02_sfnt_off0000dab5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAB5 17088 bytes
SHA-256: 51b1641be4cc46de1bfa76f34906e7087535a5f991f1255cfe41675b57db385c