Malicious PDF — malware analysis report

Static analysis result for SHA-256 1910d5881292a3b3…

MALICIOUS

PDF

213.6 KB Created: 2022-02-02 04:46:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 216f4d165a2ddf597ea62b06adb43f5d SHA-1: 7eca119fbce9d687441421efece5e7748d95d141 SHA-256: 1910d5881292a3b3c627579a146285210f6614f74143af6310cba3ad0b353eb0
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7780

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://loheb.co.za/XSRYdR1H?utm_term=bases+de+datos+sql+pdf PDF link annotation
    • http://siciny.eu/userfiles/file/pezenibali.pdfIn PDF document text
    • https://himalmanpower.com/ckfinder/userfiles/files/retuguvapofegakiza.pdfIn PDF document text
    • http://carzip.biz/files/uploads/files/51736008652.pdfIn PDF document text
    • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619fcd5f25da7---zosutidavinavedugoxav.pdfIn PDF document text
    • https://dunaweb.co/bg_image/files/kufelivufesututisa.pdfIn PDF document text
    • http://pnktools-th.org/ckfinder/userfiles/files/lupotujazituxupoxixiborez.pdfIn PDF document text
    • http://gzcil.com/uploadfile/files/16736469515.pdfIn PDF document text
    • https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161dab787cf1d1---varaxivusumid.pdfIn PDF document text
    • https://ijfbacknumber.com/editor_up/65056275909.pdfIn PDF document text
    • http://liderzy.natura2000.pl/imgturysta/files/zefadojoxumor.pdfIn PDF document text
    • http://klick-tipp.at/ckfinder/userfiles/publics/files/33365969294.pdfIn PDF document text
    • http://ekorob.pl/userfiles/file/228261121.pdfIn PDF document text
    • http://vet-spb.com/userfiles/file/sexuwofewumixiwofivosana.pdfIn PDF document text
    • https://cpc-serbia.org/js/files/32196488165.pdfIn PDF document text
    • http://e-photosynthesis.org/userfiles/file/60095859998.pdfIn PDF document text
    • http://sporteambiente.it/ckfinder/userfiles/files/jovirip.pdfIn PDF document text
    • https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/ebdcc9f099d312a9978c000bd3febadf/gedeteguvofifewiluzakixef.pdfIn PDF document text
    • http://personaleducador.com.br/ckeditor/kcfinder/upload/files/liwiruwejamalinudolox.pdfIn PDF document text
    • https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1614d47759b6a6---pidixexetesukumajaruk.pdfIn PDF document text
    • https://estudiowebcolombia.com/ckfinder/userfiles/files/62924590523.pdfIn PDF document text
    • https://uzunlarpeynir.com/dursun/upload/files/xefumivazoperafune.pdfIn PDF document text
    • http://kythuatviet.vn/uploads/userfiles/file/risoxa.pdfIn PDF document text
    • https://tylbm.com/Upload/ckeditor/files/dagux.pdfIn PDF document text
    • https://efsanepin.com/calisma2/files/uploads/reluro.pdfIn PDF document text
    • http://partynfun.com/kcfinder/upload/files/resiburuxer.pdfIn PDF document text
    • https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/34076126a8332b9766a067c323558913/31729623873.pdfIn PDF document text
    • https://tanasiri.com/piceditor/file/fexebaxixexujarukebesolop.pdfIn PDF document text
    • http://cl-pub.com/files/files/pagixobe.pdfIn PDF document text
    • https://lerangement.com/upload/editor/file/30837409968.pdfIn PDF document text
    • http://ajitcoatings.com/uploads/51672887933.pdfIn PDF document text
    • http://kimsanghun.com/upload/userfiles/file/20211116170217956.pdfIn PDF document text
    • http://apmweb.almaproject.it/public/userfiles/file/jegukawupasewuwomib.pdfIn PDF document text
    • http://mrs-edu.com/sribati/editor/uploadfiles/34176493359.pdfIn PDF document text
    • https://nmcs.ca/userfiles/files/pasotopidosuxifen.pdfIn PDF document text
    • https://tinhhoaxanh.vn/userfiles/file/32419706133.pdfIn PDF document text
    • http://pasaru.com/upload/files/kikutinuguvized.pdfIn PDF document text
    • http://fese.in/ienupdimages/images/files/jilul.pdfIn PDF document text
    • https://tanasiri.com/piceditor/file/padunibomejawovajomup.pdfIn PDF document text
    • http://bjqyms.com/filespath/files/20211226114739.pdfIn PDF document text
    • https://dentalrud.com/userfiles/file/badavol.pdfIn PDF document text
    • http://bobas24.pl/Upload/file/76075232998.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_off0002e87c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E87C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0002ff9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FF9C 10392 bytes
SHA-256: 100ca6f0535452e38ac2817eae73fce91da172088cf74c9b56f5d1d4f3af9999
font_02_sfnt_off00031714.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31714 18380 bytes
SHA-256: 028f47bf9ae64c58546bcc29ae629c7da914b7e4b9b2dfa03be7b4b543dbb1eb