Malicious PDF — malware analysis report

Static analysis result for SHA-256 22be51bb1c57e727…

MALICIOUS

PDF

224.7 KB Created: 2022-03-02 19:31:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-03
MD5: 7347cd1c4c0f9b0d2e6ea59a22f2c70a SHA-1: 3c1d1bb81beed70f4069d1aece228af25b488e60 SHA-256: 22be51bb1c57e727a5fa982677e1cffc3eb0e33e85efabf2d871a3cd09dc6f6e
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8371

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://yubit.co.za/XSRYdR1H?utm_term=website+flowchart+template+word PDF link annotation
    • http://domki-kopalino.pl/pliki/85939957683.pdfIn PDF document text
    • http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1621c9f39d93ff---muvirigipoxufimasukolar.pdfIn PDF document text
    • http://dongyuanxa.com/v15/Upload/file/2022212058317379.pdfIn PDF document text
    • http://atlantidaagency.com/kcfinder/upload/files/daxivapiveluvetak.pdfIn PDF document text
    • https://yk-tech.com.tw/ckfinder/uploads/ckfiles/files/56678220008.pdfIn PDF document text
    • https://inijariku.ugdherbal.com/ckfinder/userfiles/files/vavemamidila.pdfIn PDF document text
    • https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/161fa05f3be0e6---92805869923.pdfIn PDF document text
    • http://ajivikafinance.com/userfiles/file/86134683001.pdfIn PDF document text
    • https://riausky.com/editor/kcfinder/upload/files/3470452266.pdfIn PDF document text
    • https://htcpost.vn/vietpost.vn/img_content/file/95738811308.pdfIn PDF document text
    • http://wedding-box100.com/uploads/files/202202060031428396.pdfIn PDF document text
    • http://consorzio.artforjob.it/userfiles/file/sunafirododu.pdfIn PDF document text
    • https://istanajp2.com/contents/files/pexana.pdfIn PDF document text
    • http://studiotecnicobergamaschi.it/userfiles/files/70629407890.pdfIn PDF document text
    • https://sudahhabis.com/contents/files/65925574781.pdfIn PDF document text
    • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1621dd13febe95---tewibovijenigazalek.pdfIn PDF document text
    • https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/h5rs121si8khh4vetistsk7rnu/63735807397.pdfIn PDF document text
    • https://esofagopisa.it/userfiles/file/26518320535.pdfIn PDF document text
    • http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621516a93ee9d---xozeg.pdfIn PDF document text
    • https://eurotig.ro/file/wasaperafalazajonojoma.pdfIn PDF document text
    • https://nppmaudaha.in/ckfinder/userfiles/files/konajuz.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_off0003171a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3171A 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00032e3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32E3A 11000 bytes
SHA-256: 2bab0c43239e7d9a8feabcfe3abf1dd810e88c9860f92df7ac6f4d148bd850f8
font_02_sfnt_off000347a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x347A3 17148 bytes
SHA-256: f67e63510860f05cf147158b741240b76493aa725041ba70954dcc9f2f94034a