Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f6925ffe2a6a5c1…

MALICIOUS

PDF

415.3 KB Created: 2022-03-06 03:47:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-30
MD5: 0258676c17a7d26f475c40ea5806fa2b SHA-1: 03fa350ead5d110a51076bb53a742f337c884188 SHA-256: 8f6925ffe2a6a5c1f6f6efb2470b566e6aef1d508dc5eb61ba372e5ee7982f99
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5841

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://yoyep.co.za/XSRYdR1H?utm_term=minuet+in+g+minor+piano+sheet PDF link annotation
    • https://colegiumaniucarei.ro/ckfinder/userfiles/files/bikejutapapobaka.pdfIn PDF document text
    • http://syuncyoku.jp/upload/file/wexube.pdfIn PDF document text
    • http://www.kermaz.fr/js/kcfinder/upload/files/55421897352.pdfIn PDF document text
    • https://www.drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1621f61ffeb9e6---kopanasorevaxix.pdfIn PDF document text
    • http://zabbeleecooking.com/ckfinder/userfiles/files/vulegojopoku.pdfIn PDF document text
    • http://metabolit-plus.ru/files/file/34587340116.pdfIn PDF document text
    • https://speak82.com/_UploadFile/Images/file/55514184557.pdfIn PDF document text
    • https://rioclaro.com.co/kcfinder/upload/files/30546854746.pdfIn PDF document text
    • https://colegiohyatt.cl/third_party/ckeditor/kcfinder/upload/files/wiwegeli.pdfIn PDF document text
    • http://olech-rzeszow.pl/userfiles/file/22744082299.pdfIn PDF document text
    • http://stoka-saarlouis.de/userfiles/file/2563374642.pdfIn PDF document text
    • https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/7e0d82ea3d61339c4ec675561c23fe48/domer.pdfIn PDF document text
    • https://purefeeling8.com/data/file/gejofebisi.pdfIn PDF document text
    • http://studiolaviano.it/userfiles/files/wodibixukopikekanogonak.pdfIn PDF document text
    • https://prosaison.fr/userfiles/files/54877814119.pdfIn PDF document text
    • https://larioenergy.net/uploads/file/rofixojofu.pdfIn PDF document text
    • http://shannonlakeestates.org/fck_images/file/84704281072.pdfIn PDF document text
    • http://seatraderhk.com/userfiles/41541537873.pdfIn PDF document text
    • https://stichtingech.org/ckfinder/userfiles/files/79216613033.pdfIn PDF document text
    • https://parokaonline.hu/upload/files/47154143759.pdfIn PDF document text
    • https://ldcpc.com/ckfinder/userfiles/files/39751714842.pdfIn PDF document text
    • https://industrialguide.net/userfiles/file/84239721144.pdfIn PDF document text
    • http://kozhencherrymtc.org/userfiles/file/18398428798.pdfIn PDF document text
    • https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1620e7de429f2d---xotuwa.pdfIn PDF document text
    • http://nacyc.jp/Upload/file/62723769356.pdfIn PDF document text
    • http://vibrobeton.by/pics/files/rufutanodi.pdfIn PDF document text
    • https://northcity.rs/slike/files/44516974714.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 extracted file (font_00_sfnt_off00060d87.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00060d87.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00060d87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60D87 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000624a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x624A7 10748 bytes
SHA-256: 864b7c03cec0306357450d1f49b5cdb47b3243f017d66c9774d88bf11aecb8e3
font_02_sfnt_off00063d28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63D28 18604 bytes
SHA-256: 885d01bcc1137c8cc7b62aa53442ac869655851aaaafe199301a68015acf5d1b