Malicious PDF — malware analysis report

Static analysis result for SHA-256 4dea83be7d5afc57…

MALICIOUS

PDF

440.2 KB Created: 2022-03-20 04:20:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: f70ea66cda88f4d9188966c9e1a6042f SHA-1: 1326e322e6041bc5a6d8525f64440ea7fb1ad636 SHA-256: 4dea83be7d5afc572c16bf63b85f0b96d409c0ec79577ef5814a04f17ad565cb
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5599

Heuristics 5

  • 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.
  • 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 http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/16204d92e95db6---33359496083.pdf In PDF document text
    • http://magerp.org/upload/files/10924348616.pdfIn PDF document text
    • http://sowa-architekci.pl/userfiles/files/tuduxi.pdfIn PDF document text
    • http://eurosolar.cz/res/file/452547009.pdfIn PDF document text
    • http://zetrade.cz/userfiles/file/68576737440.pdfIn PDF document text
    • https://rijst.nu/userfiles/file/gotalom.pdfIn PDF document text
    • http://holzbau-napetschnig.at/20137139267.pdfIn PDF document text
    • https://pansky.ru/UserFiles/File/nijosazekalumozuj.pdfIn PDF document text
    • http://be-now.pl/userfiles/file/41043195336.pdfIn PDF document text
    • http://hardevel.com/data/files/38981475405.pdfIn PDF document text
    • http://hopkim.vn/upload/files/3806039517.pdfIn PDF document text
    • https://gazeta-msp.pl/user_files/File/jaruretigaxoxozagakoro.pdfIn PDF document text
    • https://olympicaccessoriesbd.com/assets/ckeditor/kcfinder/upload/files/3641220609.pdfIn PDF document text
    • http://quaisetoiles.fr/img_pages/file/tufoligiverud.pdfIn PDF document text
    • http://zaun-produzent.de/userfiles/file/28273775325.pdfIn PDF document text
    • http://nccpindia.org/ckeditor/kcfinder/upload/files/8615016144.pdfIn PDF document text
    • http://111-orte.com/testarea/cwsCMSlight/media/files/28749727049.pdfIn PDF document text
    • https://funstoreus.dialog.org/userfiles/file/69406155319.pdfIn PDF document text
    • https://supermagnum-bg.com/userfiles/file/23289436834.pdfIn PDF document text
    • http://newworldss.com/uploads/file/tadabozeruforof.pdfIn PDF document text
    • https://ctkupavna.ru/upload/file/rekenu.pdfIn PDF document text
    • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16234b36b32d67---66087065203.pdfIn PDF document text
    • https://sportsht.com/userfiles/file/13978538494.pdfIn PDF document text
    • http://spgamepack.net/upload/files/patolobidugosowiraduse.pdfIn PDF document text
    • http://naasschoolofmotoring.com/fckeditor/userfiles/file/gesatipepesokosefijezezis.pdfIn PDF document text
    • https://hotararicedo.ro/files/files/41497564117.pdfIn PDF document text
    • http://www.greddy.com/admin/common/ckfinder/userfiles/File/bewubejixiduzezaxijo.pdfIn PDF document text
    • https://pmo.jot-solutions.com/files/kovobijanokufegiso.pdfIn PDF document text
    • http://reside-realestate.de/user_files/files/xekajigutuzapasupad.pdfIn PDF document text
    • https://mifuj.co.za/XSRYdR1H?utm_term=candy+crush+soda+apk+mod+revdlPDF 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_off00067301.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00067301.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00067301.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67301 10992 bytes
SHA-256: 176c5ff70e111f6ea93efb75f643a035499bda1bf97ccf96768cf87412660fbf
font_01_sfnt_off00068c6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68C6C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0006a387.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A387 17784 bytes
SHA-256: 48f6f722f1a1318461f8e11c84f59fcf4e749581e948bafce324519659e08d25