Malicious PDF — malware analysis report

Static analysis result for SHA-256 f99bff4128888024…

MALICIOUS

PDF

255.4 KB Created: 2022-02-06 11:28:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: 17054109c323c51e638ddea891b667c5 SHA-1: 480b144d79d6f6149fbc9ad1010365955e6b2006 SHA-256: f99bff41288880245a65b775162c07e1a0b0dcf199d45a9bec85ed084a494332
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7309

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://lovig.co.za/XSRYdR1H?utm_term=phylogenetic+trees+pogil+answers PDF link annotation
    • http://1472bond.com/upload/Fckeditor/file/85228820193.pdfIn PDF document text
    • https://nsaimmigration.com/userfiles/file/77730914577.pdfIn PDF document text
    • https://g55net.com/webpagebuilder/ckfinder/userfiles/files/5394146512.pdfIn PDF document text
    • http://curtisfamilyfun.net/clients/e/e0/e02f67ab5b6879a7eb6c21a3163f7106/File/veguriwepo.pdfIn PDF document text
    • http://haqwali.biz/files/file/96243370973.pdfIn PDF document text
    • http://druckmaschinenservice.com/uploads/fce/files/patekazi.pdfIn PDF document text
    • https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/1617ac25067bf6---84199979682.pdfIn PDF document text
    • https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/b5231712f4f0f95ff368b0c2cc37645c/18532479112.pdfIn PDF document text
    • https://www.coremg.org.br/dinamico/includes/kcfinder/upload/files/12356927189.pdfIn PDF document text
    • http://qdjshg.com/files/file/42930632092.pdfIn PDF document text
    • http://greddy.com/admin/common/ckfinder/userfiles/File/65467507271.pdfIn PDF document text
    • https://iwanbim.com/userfiles/files/57989151991.pdfIn PDF document text
    • http://amy-tsai.com/images_express/userfiles/files/92301780688.pdfIn PDF document text
    • http://sriraghavendratemple.com/ckfinder/userfiles/files/bamodagoraterelopek.pdfIn PDF document text
    • http://agcslohian.com/userfiles/file/61928927350.pdfIn PDF document text
    • https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/a54dade389c09d6fd82bc51a1e148b64/61367651439.pdfIn PDF document text
    • http://woodsfamilypride.org/clients/2/2c/2c83419adcf4927d74d3defe18342386/File/46687060707.pdfIn PDF document text
    • https://gauravkankariya.com/wp-content/plugins/super-forms/uploads/php/files/c9b891ffa44ea4dcb1b1226007bf6915/16495758429.pdfIn PDF document text
    • https://citrasas.com/ckfinder/userfiles/files/jelonorexomadafij.pdfIn PDF document text
    • https://alarouba.com/ckfinder/userfiles/files/66034020821.pdfIn PDF document text
    • http://sictombbi.fr/ckfinder/userfiles/files/62370645948.pdfIn PDF document text
    • https://frenstravel.com/assets/ckfinder/userfiles/files/27476229695.pdfIn PDF document text
    • http://www.thunderesp.com/ckfinder/ckfinder.htmlfiles/39161630211.pdfIn PDF document text
    • http://vngo-cc.vn/cooker/public/files/javogip.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_off000392e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x392E2 16764 bytes
SHA-256: 4a4ff2470986f31bd16d147afaa6bc4e119fa0cacfcbd65c000e5c7905da7b0c
font_01_sfnt_off0003be7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3BE7E 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0003d59e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D59E 10856 bytes
SHA-256: 4221f8b7a4bd16ba812042a840462346acf6373faa0aa910980afd077a884e2e