Malicious PDF — malware analysis report

Static analysis result for SHA-256 624c3643fc8a130a…

MALICIOUS

PDF

245.0 KB Created: 2022-01-09 18:22:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-29
MD5: d202592aa62638f06076208f8336ff7c SHA-1: 2d1408f782572e763f7696c5ef5c83d743d55cff SHA-256: 624c3643fc8a130a2865ba815ec240c893fcb4c754b14df536d0702bd22e6796
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7822

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 http://nessium.net/userfiles/file/lomowuvenolibeg.pdf In PDF document text
    • http://cn-biyoute.com/d/files/68342525368.pdfIn PDF document text
    • http://eurolocal.info/sites/default/files/images/file/56147764677.pdfIn PDF document text
    • http://bangladeshceramicsociety.com/uploads/editor/files/28291835000.pdfIn PDF document text
    • https://trsoftyazilim.com/genelresimler/file/81393615362.pdfIn PDF document text
    • https://www.naturecare.com.au/kcfinder/upload/files/92729922198.pdfIn PDF document text
    • https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/ba3761da2f1312823197158e5e1cda62/kamabonemawe.pdfIn PDF document text
    • http://mixline.ru/img/lib/file/mapibulejevilodomixib.pdfIn PDF document text
    • http://architettosbaffo.com/userfiles/files/73271197793.pdfIn PDF document text
    • http://jcbcharpentebois.com/ressource/site-image/files/tuwirapobole.pdfIn PDF document text
    • https://hbfilm.ca/resimler/files/jiwoxikozedizulavo.pdfIn PDF document text
    • http://plenaseguroseprevidencia.com/fotosempresa/files/38100888459.pdfIn PDF document text
    • http://flapboxes.com/userfiles/files/getivarasefopupololez.pdfIn PDF document text
    • https://fo-prefectures.com/pages/files/10034045758.pdfIn PDF document text
    • https://rumusjitu.com/contents/files/66573811251.pdfIn PDF document text
    • https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161b6ac65934f1---88380614285.pdfIn PDF document text
    • https://transilvaniafishing.ro/app/webroot/files/userfiles/files/68413724167.pdfIn PDF document text
    • https://vicotelecom.vn/static/source/images/file/gizaluxenofe.pdfIn PDF document text
    • http://vita24h.com/uploads/userfiles/file/wizuponulokifibevepiwu.pdfIn PDF document text
    • https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/7jsac8ejgrh3m983e9a2dgsq5q/juvuruzaseta.pdfIn PDF document text
    • http://jtg-antracyt.pl/files/file/lololozoguliva.pdfIn PDF document text
    • http://runbo.net/upfiles/files/16361875306752.pdfIn PDF document text
    • http://fitsiluet.cz/data/file/sawejobi.pdfIn PDF document text
    • https://limsurdua.com/contents/files/77549092046.pdfIn PDF document text
    • http://swapnakoodu.com/fck_uploads/file/55414139097.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/vItLtdF7Pec/uplcv?utm_term=vue+component+template+urlPDF link annotation
    • 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_off000366c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x366C8 10344 bytes
SHA-256: bebfce92caa64e0b426e9b3c484c1b6e2d03af4609d1917c8e81702945525d41
font_01_sfnt_off00037e23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37E23 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off000394c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x394C2 18340 bytes
SHA-256: c80428bd96dda22cbf88028794484fe7ed9ee913475e206ea1484caa3e7b0241