Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9cb9486801ae0c8…

MALICIOUS

PDF

308.6 KB Created: 2022-04-07 13:22:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: f6efb350b90101539eddce5df1cde21f SHA-1: 30fa4706911baf448dbc1b26a9cc53a9b21516ce SHA-256: a9cb9486801ae0c800cbff9e02c199fe7e672143639e6e968760ca69b681177b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6836

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://hyper.oneewe.com/_img/files/sefib.pdf In PDF document text
    • https://aventura-agence.lu/userfiles/files/petazolabubujebitut.pdfIn PDF document text
    • https://gastrotest.co/ckfinder/userfiles/files/10528413518.pdfIn PDF document text
    • http://santabruna.cl/upload/file/ruwevefepudisovinipugip.pdfIn PDF document text
    • http://reliancefla.com/admin/images/file/63864930357.pdfIn PDF document text
    • http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1621154611c5ee---seperopixumoxetutiriwupu.pdfIn PDF document text
    • http://alompar.hu/uploads/content_files/files/35557697156.pdfIn PDF document text
    • http://bharatdarshan.net/rgroup/ckfinder/userfiles/files/69452733203.pdfIn PDF document text
    • https://aceold.lrsinc.co/userfiles/file/20389805521.pdfIn PDF document text
    • http://daydala.com/userfiles/file/1174135625.pdfIn PDF document text
    • http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/1623e3bdac266c---11783259483.pdfIn PDF document text
    • https://banalixigadevub.weebly.com/uploads/1/3/4/7/134722660/jilajokavo_temimo_batimok_bujanarotizedi.pdfIn PDF document text
    • https://czus-lukasa.sk/userfiles/file/letidejewaxaduzusus.pdfIn PDF document text
    • http://schokozentrale.de/idata/20978204061.pdfIn PDF document text
    • https://zegadakupoxak.weebly.com/uploads/1/3/4/7/134749069/mewoles-dutogamibiba.pdfIn PDF document text
    • https://tsydesign.com/userfiles/jws/files/xuvepazuguzibuxugoxubuxid.pdfIn PDF document text
    • https://kotak12.com/contents/files/87680829453.pdfIn PDF document text
    • https://www.stc-tn.com/webroot/upload/files/18145010938.pdfIn PDF document text
    • http://mertcelikkapi.com/userfiles/file/wewizivagaboso.pdfIn PDF document text
    • http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1623475c816cb3---19780849900.pdfIn PDF document text
    • http://studiotecnicoprato.eu/userfiles/files/febopavuviguporipalozud.pdfIn PDF document text
    • https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/59977a1a23a3c33dfdb9786dad77af5f/nadapuzejebatawufurupuze.pdfIn PDF document text
    • http://ayhancevik.com/images_upload/files/disig.pdfIn PDF document text
    • http://kalecikliyiz.biz/panel/kcfinder/upload/files/51748051451.pdfIn PDF document text
    • http://ovodaprojekt.lenti.hu/feltoltes/files/37311229139.pdfIn PDF document text
    • https://www.tahreek-a-khatmenabuwat.com/assets/ajs/kcfinder/upload/files/wuxawazodasasuzu.pdfIn PDF document text
    • https://tupadutuxoti.weebly.com/uploads/1/3/5/9/135974222/de94a16038.pdfIn PDF document text
    • https://zavegikow.weebly.com/uploads/1/3/4/8/134884987/8240633.pdfIn PDF document text
    • https://cafij.co.za/XSRYdR1H?utm_term=autogestion+del+aprendizaje+conalepPDF link annotation
    • http://marcth.pl/media/fck/file/64318983763.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_off00044f68.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00044f68.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00044f68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44F68 22236 bytes
SHA-256: 8728d6aabe3123e0973ce091ec63c3845a0e55ed5418167d16d66d79498e396c
font_01_sfnt_off000488ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x488AB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0004a0c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A0C2 10960 bytes
SHA-256: bb0796b5e644bf30d6ef7bfcc168d2e7b44156b342a6b44485405db5bc0333f4
font_03_sfnt_off0004ba17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BA17 1696 bytes
SHA-256: 28c5bcedffb0f63c0f18ed07264126f7c833899b916de9a351f9850be7cb6bae