Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af2a8f80e429719…

MALICIOUS

PDF

288.4 KB Created: 2022-04-09 09:56:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 1fcc3b7a2525a9431f2143cc0c26cae0 SHA-1: 382e4e7988d9c3649b82ba98872997297ab4a9c1 SHA-256: 4af2a8f80e4297197a2c2906308ce1b12f16a0fdf4f49c81f94d2117bb716d81
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8179

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 https://loheb.co.za/XSRYdR1H?utm_term=regents+physics+worksheet+3.2.3+conservation+of+energy+answers PDF link annotation
    • http://nena-artspace.com/ckfinder/userfiles/files/98146183215.pdfIn PDF document text
    • http://proart.by/media/file/vogojefolerarevofan.pdfIn PDF document text
    • https://strings97.hu/userfiles/file/25232398506.pdfIn PDF document text
    • http://stoewebdesign.no/userfiles/file/bugibovekameveputuk.pdfIn PDF document text
    • http://gdlianyu.com/uploadfiles/file/resoxudovodoxaporuro.pdfIn PDF document text
    • https://xeroxexpres.cz/userfiles/file/58371612221.pdfIn PDF document text
    • http://lapawan15.com/shop/fck_file/file/94633716299.pdfIn PDF document text
    • http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/5e905210e18fcecede56d00dac37e39b/xokusujodosededezad.pdfIn PDF document text
    • https://er-cardiff.com/eurostyl/photos/file/sokapokolodiwijude.pdfIn PDF document text
    • https://yumasri.com/assets/ckfinder/userfiles/files/95453395432.pdfIn PDF document text
    • http://barcodeegypt.com/public/kcfinder/upload/files/89885943182.pdfIn PDF document text
    • https://twinslock.com/ckfinder/userfiles/files/sevubuwumeborovi.pdfIn PDF document text
    • http://tingyi-bnb.com/CKEdit/upload/files/derirokowu.pdfIn PDF document text
    • http://www.volteram.com/kcfinder/upload/files/tubululugir.pdfIn PDF document text
    • https://ww150008.linebot.net/upfile/files/20220223134657.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/3666ohpg7augfgt66gi7ppak17/xazomilevimuzajaf.pdfIn PDF document text
    • http://chunzucn.yun2u.cn/upload/files/wejozefukag.pdfIn PDF document text
    • http://nationalherbo.com/userfiles/file/muses.pdfIn PDF document text
    • http://chiengthai.com/file_media/file_image/file/1987434778.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003f39b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F39B 16160 bytes
SHA-256: 4ac500d6e3c0ff81b9d7bba6b662cc1b6c57f4f8b05facc13edcda647588841f
font_01_sfnt_off00040914.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40914 11472 bytes
SHA-256: 7719fb22834dfd1b5c9e8dce833e868ab5863150afa0534b17651be7c4d646f8
font_02_sfnt_off0004245f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4245F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_03_sfnt_off00043c71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43C71 20336 bytes
SHA-256: 0dfb8a263fcc63801568cf97f922d44701c7f2879a1534778e804adb02401677

Open this report in the interactive analyzer, or submit your own file for analysis.