Malicious PDF — malware analysis report

Static analysis result for SHA-256 93c43c6de8b0b532…

MALICIOUS

PDF

410.8 KB Created: 2022-03-02 08:00:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-13
MD5: fb358b97eea08053336451b3e45ad9e6 SHA-1: 7bc0bb68798b3982d41947451172516ccf308c09 SHA-256: 93c43c6de8b0b5328349a5b8794b8ad6005a405f8420c1d31c6ff59908802298
161 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4680

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
  • 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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://sunuf.co.za/XSRYdR1H?utm_term=long+a+sound+worksheet+pdf PDF link annotation
    • https://www.weldcor.ca/public/ckfinder/userfiles/files/palozokavafekik.pdfIn PDF document text
    • https://www.veskom-slovakia.sk/gfx/administration/js/ckeditor/kcfinder/upload/files/524818786.pdfIn PDF document text
    • http://key-pro.jp/kcfinder/upload/files/xelanidejijowotitor.pdfIn PDF document text
    • http://ilink.pl/userfiles/file/lajufopitiguwirusu.pdfIn PDF document text
    • http://sameiroeventos.pt/ficheiros/metuv.pdfIn PDF document text
    • http://nm-union.ru/ckfinder/userfiles/files/77048072481.pdfIn PDF document text
    • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/16205b3c892752---45812220654.pdfIn PDF document text
    • http://hmondo.com/userData/board/file/26005808892.pdfIn PDF document text
    • https://southwestlooms.com/siteimage/pageimage/files/xiwerabetokus.pdfIn PDF document text
    • http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/5rqajs6k1lk09e55dqop0rp083/85199975682.pdfIn PDF document text
    • http://bep-cong-nghiep.theonejsc.com/userfiles/file/junatasiredika.pdfIn PDF document text
    • https://demetraproject.eu/ckfinder/userfiles/files/24245036273.pdfIn PDF document text
    • https://forumsevens.com/images/file/wulavomin.pdfIn PDF document text
    • https://furedgym.webtarhely.org/webroot/upload/files/vuxul.pdfIn PDF document text
    • http://bbbo.handyfriendship.com/upload/files/79325497960.pdfIn PDF document text
    • http://www.procuradoresgipuzkoa.com/js/ckeditor/kcfinder/upload/files/76937084159.pdfIn PDF document text
    • https://hot-pol.com/images/file/xafogila.pdfIn PDF document text
    • https://europartner2.pl/uploads/weguxitur.pdfIn PDF document text
    • https://tuyendung.tlipgroup.com/upload/images/files/14216139.pdfIn PDF document text
    • http://gira-classix.su/kcfinder/upload/files/66306183669.pdfIn PDF document text
    • https://dichvuhappyhouse.com/upload/files/pozobi.pdfIn PDF document text
    • http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/161f9586a174b5---popawu.pdfIn PDF document text
    • https://expomediainc.com/upload/file/xuvezurofobode.pdfIn PDF document text
    • http://zulassungsdienst4you.de/bilder/file/rovomamutuzivirizip.pdfIn PDF document text
    • http://back2wood.de/userfiles/file/34150858769.pdfIn PDF document text
    • http://www.mustwalge.ee/data/content/files/5082637314.pdfIn PDF document text
    • https://strings97.hu/userfiles/file/kagigulo.pdfIn PDF document text
    • http://abbaorphancare.org/survey/userfiles/files/44688932163.pdfIn PDF document text
    • https://1992.centrumnet.hu/UserFiles/www.1992.centrumnet.hu/File/2716765239.pdfIn PDF document text
    • http://vititanon.com/user_img/files/gesatebisajib.pdfIn PDF document text
    • http://poaglasses.com/uploads/files/202202080849307576.pdfIn PDF document text
    • https://madeirashopping.com/userfiles/file/52751542408.pdfIn PDF document text
    • https://cualuoihoanmy.com/uploads/userfiles/file/midamumefemetujiwukisuf.pdfIn PDF document text
    • http://balalajka.nu/media/72026664336.pdfIn PDF document text
    • http://sjanzee.nl/file/20760279238.pdfIn PDF document text
    • http://ibtaker.ps/userfiles/file/72278383045.pdfIn PDF document text
    • https://hexema.com/FCKeditor/file/20504179105.pdfIn PDF document text
    • https://hongmao.tw/uploads/files/202202100553549056.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_off0005df60.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005df60.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005df60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF60 16220 bytes
SHA-256: 207eb3b51995adbdef2a766e0364e2c2ee182a7f0f0647c12a4a3807efc046f6
font_01_sfnt_off0005f540.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F540 20512 bytes
SHA-256: 3fce21ac77be7548aaa5a9e18015d7aa5f521c0b445be148eac8bf20e411c818
font_02_sfnt_off00062af5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62AF5 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_03_sfnt_off00064215.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64215 10876 bytes
SHA-256: f150b2baab53f8eab364a549c3b591e8afbdaefd99892f6a12bb05541737a3f2