Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9c00d56b43a6bf7…

MALICIOUS

PDF

447.6 KB Created: 2022-02-27 23:05:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-27
MD5: 8bb690ddff18141969bf2dd5e548a508 SHA-1: 191fbd65e2b9efb203bd9b6a6062eef4ee47ca12 SHA-256: a9c00d56b43a6bf7c6b29808cc1307dd70c5897dda6f3d7703ee4291c00011dd
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4571

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://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/3572dr1fok1svghpkcujgk29f3/32010160395.pdf In PDF document text
    • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/611a36df4f5b08a7e466938706d29270/gijetemofuvupufevege.pdfIn PDF document text
    • http://romanakladatelstvi.cz/userfiles/file/26755209646.pdfIn PDF document text
    • https://ons-station.com/editor_upload/file/vamesawitarukotapitisodi.pdfIn PDF document text
    • https://www.naabelectric.com/userfiles/files/paloliwuxojax.pdfIn PDF document text
    • https://www.wunderlandovi.hu/kcfinder/upload/files/sipilu.pdfIn PDF document text
    • https://anupbolivia.com/images/files/74165046720.pdfIn PDF document text
    • http://fizjoactiv.eu/Upload/file/48194699174.pdfIn PDF document text
    • https://shih-tzu.ro/files/file/toporupebukobixu.pdfIn PDF document text
    • https://nocnepal.org.np/ckfinder/userfiles/files/lejezon.pdfIn PDF document text
    • http://mdfgiare.com/upload/files/nozax.pdfIn PDF document text
    • https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/bd7773df45dedf69d27babc05b5448d8/resumezalurolo.pdfIn PDF document text
    • http://gurukripapublicschool.com/userfiles/file/4429447796.pdfIn PDF document text
    • http://loxocongnghiep.com/MINH/user_files/file/kebujado.pdfIn PDF document text
    • https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/rlmg0fjjvmaag6pv4vcjtu6d55/geturodewokolubiw.pdfIn PDF document text
    • http://wittymall.com/multimedia/userfiles/file/roraselogajiwulo.pdfIn PDF document text
    • https://altonika.pro/files/fck/file/94796706621.pdfIn PDF document text
    • https://kocarbon.vn/luutru/files/1370430211.pdfIn PDF document text
    • http://delshadian.com/public/userfiles/file/bikelisakusateva.pdfIn PDF document text
    • https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/pej2bmh5c8go873lat41j1bcil/xejas.pdfIn PDF document text
    • http://studiopedrazzini.eu/userfiles/files/delamipi.pdfIn PDF document text
    • https://www.sdhbd.org/backend/web/kcfinder/upload/files/wupasajuwivupujodi.pdfIn PDF document text
    • https://www.popcaffe.it/wp-content/plugins/super-forms/uploads/php/files/f8c3fa9f51bf57aa9aa80effdb86317a/23432556010.pdfIn PDF document text
    • https://gheysenreal.com/uploads/files/zuxugunitixotedomuwin.pdfIn PDF document text
    • http://eastwoodfamily.net/userimages/46789211106.pdfIn PDF document text
    • http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/161b17e47dd282---46879888511.pdfIn PDF document text
    • https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/c6aa2ee767bd28a4b7ee7598d22e93f5/zonewozemut.pdfIn PDF document text
    • http://pioneerbuzz.net/userimages/pozat.pdfIn PDF document text
    • https://megatechhi.com/userfiles/file/56665346755.pdfIn PDF document text
    • http://kenzoum.org/home/integrity/public_html/ckfinder/userfiles/files/kibalanofewopeluzutetixob.pdfIn PDF document text
    • http://www.taylormadetc.com/siteadmin/ckfinder/userfiles/files/13394946085.pdfIn PDF document text
    • https://adamant54.ru/userfiles/files/jazopafiginave.pdfIn PDF document text
    • https://cesiedizioni.com/userfiles/file/24834228746.pdfIn PDF document text
    • https://www.bevillelecomte.ovh/ckfinder/userfiles/files/84413233248.pdfIn PDF document text
    • https://lovig.co.za/XSRYdR1H?utm_term=ashokan+farewell+sheet+chordsPDF 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 extracted file (font_00_sfnt_off00067b12.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00067b12.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00067b12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67B12 10640 bytes
SHA-256: ed7fa0e2161055d5f5aab35557f713f55db049a96704fbe096223a10f2ac615e
font_01_sfnt_off00069386.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69386 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0006aaa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AAA1 17604 bytes
SHA-256: 613d0a6270678a731a3719af9f23b689eeb97b7ba46a25780099b2bc05f6dc4a
font_03_sfnt_off0006d839.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D839 16220 bytes
SHA-256: 207eb3b51995adbdef2a766e0364e2c2ee182a7f0f0647c12a4a3807efc046f6