Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9e841511fc0cbe1…

MALICIOUS

PDF

213.2 KB Created: 2022-04-18 13:43:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-28
MD5: fb5c23bd59c208540d57bc8a5e0af264 SHA-1: 09a5108e315f01b67fa6338fb70a37563e2d1b54 SHA-256: c9e841511fc0cbe1984189cff135474b5d8206c4bc1f577c32eb417c785d0adc
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7413

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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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://fitxpower.fr/lib/ckeditor/kcfinder/upload/files/71271933673.pdf In PDF document text
    • http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/1623aa70c2d96e---xezusekozofunaz.pdfIn PDF document text
    • https://isped.cz/kcfinder/upload/files/50941221547.pdfIn PDF document text
    • https://fumuradowije.weebly.com/uploads/1/3/0/7/130739974/ditukitozuv-tuwulixuxemurag-gitiviwalevo-daranozelipin.pdfIn PDF document text
    • https://wineuniverse.us/userfiles/file/lasaliwazatanijeketofadil.pdfIn PDF document text
    • https://zusavakaki.weebly.com/uploads/1/3/0/8/130815140/miravugekulin_towizu_vobowosusimigo_jorij.pdfIn PDF document text
    • https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/9b2e6f6f755d31632b4d70c99a2b94a6/86807478669.pdfIn PDF document text
    • https://privatdaniela.sk/upload/files/judepapuxafikegam.pdfIn PDF document text
    • https://xegugunozom.weebly.com/uploads/1/3/1/4/131482992/peviba_basetusoriwe.pdfIn PDF document text
    • http://bkm-market.net/userfiles/file/dofafurapa.pdfIn PDF document text
    • http://heimundsicherheit.de/userfiles/file/remelafapa.pdfIn PDF document text
    • https://parisnordmedical.fr/docs/file/wubijubebimeletadunaniro.pdfIn PDF document text
    • http://proallprint.com/userfiles/files/45957201265.pdfIn PDF document text
    • https://bsff.com/kcfinder/upload/files/37587935314.pdfIn PDF document text
    • https://zisidolig.weebly.com/uploads/1/3/1/3/131379992/4795360.pdfIn PDF document text
    • https://gikilona.weebly.com/uploads/1/3/5/9/135966600/lezelavoniwugodiv.pdfIn PDF document text
    • https://pt-joker.com/contents/files/nalalajepu.pdfIn PDF document text
    • http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16229ea18813f9---xinixulok.pdfIn PDF document text
    • https://goponubinolofuv.weebly.com/uploads/1/3/4/6/134695307/tefakitu_butuxuxin_mixujanugumozo_butixezi.pdfIn PDF document text
    • http://sm.ac.th/ckfinder/userfiles/files/vofivadalomikuxukakejopem.pdfIn PDF document text
    • http://permagnet.com/upload_files/file/220418054359374202978nkw.pdfIn PDF document text
    • https://gufofusubovara.weebly.com/uploads/1/3/5/3/135323195/f537530f.pdfIn PDF document text
    • http://bensonlandscape.com/editorData/file/89053730958.pdfIn PDF document text
    • http://montpellier-business-plan.fr/mbp/upload/images/images/upload/ckfinder/rusun.pdfIn PDF document text
    • https://jupedozezuwobig.weebly.com/uploads/1/3/4/0/134040413/52f12a1f662b1.pdfIn PDF document text
    • https://tipidaxu.weebly.com/uploads/1/3/0/7/130739537/8999609.pdfIn PDF document text
    • https://norin.co.za/XSRYdR1H?utm_term=microsoft+word+labels+16+per+sheetPDF link annotation
    • https://kop-trans.pl/uploads/userfiles/files/xotajig.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_off0002e19c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0002e19c.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002e19c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E19C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0002f9ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F9AE 19612 bytes
SHA-256: 21dfb2455032e3098f3cebcc1a367e2cae6537577d1dce9693c905c54526bd92
font_02_sfnt_off00032b9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32B9D 11052 bytes
SHA-256: 6248f853ddfd479ed9947b5aec751018e7ff924e3fc5f5b5cb959dda81db3a82