Malicious PDF — malware analysis report

Static analysis result for SHA-256 116be1b436640903…

MALICIOUS

PDF

624.2 KB Created: 2022-02-13 10:15:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-04
MD5: 3f4a801ea2f60a6d6833e723b3459a39 SHA-1: 1361a9bd5558618088176cdaee1cc1f671517ad0 SHA-256: 116be1b436640903d727a4f88a37cc78176c80c271825d1a862f41684c4c27e0
176 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3664

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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://norin.co.za/XSRYdR1H?utm_term=benedetti+poemas+de+amor+pdf PDF link annotation
    • http://cukorbetegshop.hu/files/xefewipukiwapafaganawijo.pdfIn PDF document text
    • https://turismo-galicia.es/ckfinder/userfiles/files/runafiwufaxex.pdfIn PDF document text
    • https://ajwatravel.com/wheelmarine/userfiles/file/78534583621.pdfIn PDF document text
    • http://acm-medicali.it/userfiles/files/kopaturozu.pdfIn PDF document text
    • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/ohmbm07mlsjb11445v416of225/fasowugometodalizavoga.pdfIn PDF document text
    • https://polresseluma.com/assets/ckfinder/core/connector/php/uploads/files/56183682522.pdfIn PDF document text
    • http://15881588.com/ckupload/files/mipadegirajogevuwawaga.pdfIn PDF document text
    • http://koreabulk.net/userData/board/file/pujovakopokolokotuwud.pdfIn PDF document text
    • http://zartmobilia.com/userfiles/file/20210818000118.pdfIn PDF document text
    • https://nslogisticservice.com/userfiles/files/28909697382.pdfIn PDF document text
    • http://mbeautyconcept.com/upload/content_images/file/demuvenifuzuz.pdfIn PDF document text
    • http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/161c759cf0a7aa---dowuwanapepasisunafemo.pdfIn PDF document text
    • http://buffagiuseppeinfissi.com/userfiles/files/21875059753.pdfIn PDF document text
    • http://tecs4.com/intranet/ckfinder/userfiles/files/16041821799.pdfIn PDF document text
    • http://haustechnik-hagenauer.at/64797747350.pdfIn PDF document text
    • https://lifecareproduct.in/ckfinder/userfiles/files/watedana.pdfIn PDF document text
    • http://shengnabei.com/uploadfile/file///2021121920181469.pdfIn PDF document text
    • http://hairtransplantmangalore.com/uploaded_files/userfiles/files/manizuwe.pdfIn PDF document text
    • https://gibidesign.com/fckfiles/file/97868478596.pdfIn PDF document text
    • http://xn--ob0bjxt9h99icicrvkksa421cwwp7hiv4d6a.com/ckfinder/userfiles/files/gigosij.pdfIn PDF document text
    • http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16130819d78dd2---91497589828.pdfIn PDF document text
    • https://elmaga.lt/components/com_mijoshop/opencart/image/data/files/runaxigubetenuta.pdfIn PDF document text
    • https://sunarchegypt.com/userfiles/file/xujawin.pdfIn PDF document text
    • http://chinahongji.com/d/files/17219355034.pdfIn PDF document text
    • http://www.smartlandgroup.com//ckfinder/userfiles/files/rilegofaxamen.pdfIn PDF document text
    • http://sbnjl.com/userfiles/files/55666890456.pdfIn PDF document text
    • http://constantemails.com/userfiles/file/163909220455314062339.pdfIn PDF document text
    • https://steammining.com/userfiles/file/vilemamezamegarunufuv.pdfIn PDF document text
    • http://yves-segers.be/userfiles/files/lojezerejodofu.pdfIn PDF document text
    • https://immo-macedo.lu/userfiles/files/63044797987.pdfIn PDF document text
    • http://helderlive.nl/ckfinder/userfiles/files/susirezifizerigijovuraru.pdfIn PDF document text
    • http://lightofislamonair.org/uploads/files/batisapupalarufavesigu.pdfIn PDF document text
    • https://ngenadmin2.nextgenphotosolutions-beta.com/app/webroot/files/file/worinomapukapumiv.pdfIn PDF document text
    • https://wanna-drive.nl/files/File/pulavebe.pdfIn PDF document text
    • http://ls12368.com/userfiles/file/gutemozinojufapetabelawiw.pdfIn PDF document text
    • http://esoftland.com/userfiles/file/mizifajatud.pdfIn PDF document text
    • https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613dad865e4d4---70493337054.pdfIn PDF document text
    • http://dasbluemchen.com/6042335104.pdfIn PDF document text
    • http://lucchetta.net/userfiles/files/44700707731.pdfIn PDF document text
    • http://woodlander.sk/grafika/file/vegojujelojur.pdfIn PDF document text
    • http://sapientgenerator.ru/files/userfiles/files/bezim.pdfIn PDF document text
    • http://traktorpulling.de/ablage/userfiles/files/vegojagenapo.pdfIn PDF document text
    • http://bimbrlata.cz/UserFiles/File/8562966930.pdfIn PDF document text
    • http://sherwoodchambergolf.org/ckfinder/userfiles/files/ridozapowobaliwabojo.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
    +3 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00095062.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95062 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0009677d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9677D 18928 bytes
SHA-256: f04c58093c8bc2e06bca0554be7c3fc6a4ca2bbf9835ad49c417990d761e8e85
font_02_sfnt_off00099804.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99804 10664 bytes
SHA-256: a745422aa65f003b20ce6f71ee2d8f3157ec390966f7832c6fc9d9c88d42eedf