Malicious PDF — malware analysis report

Static analysis result for SHA-256 4afeb30cb46e180e…

MALICIOUS

PDF

355.9 KB Created: 2022-02-04 00:03:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 9fefad1f6e7ad374694a7a4c0124127c SHA-1: 9181c771e567605ad5be6deff3522f4230a8fb17 SHA-256: 4afeb30cb46e180e32e3c5bf879b6d27fc8a83e328070784f9d5621a4c7236bd
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6817

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.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://wirut.co.za/XSRYdR1H?utm_term=ielts+listening+recent+actual+test+1+pdf PDF link annotation
    • https://serka.com/serka/upload/files/poxisozomavixo.pdfIn PDF document text
    • https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/r91l9ob2ag9n9831gisml8ouia/lunobafogavonalekirepeke.pdfIn PDF document text
    • http://elpijisystem.com/file/84782715707.pdfIn PDF document text
    • https://www.sinditamaraty.org.br/site/public/ckeditor/kcfinder/upload/files/nalijiduzu.pdfIn PDF document text
    • https://hoavily.com/uploads/files/30294120646.pdfIn PDF document text
    • https://www.smartfutureexpo.com/ckfinder/userfiles/files/topit.pdfIn PDF document text
    • https://raovat72.vn/uploads/news_file/refikedugijozuduruva.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/161d52a9caf145---zarufolovuwopedirili.pdfIn PDF document text
    • https://watfordfairtrade.org/app/webroot/img/files/4129029295.pdfIn PDF document text
    • http://gongotour.com/FileData/ckfinder/files/20210714_24144B7BFADF160F.pdfIn PDF document text
    • https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/4a80cb2d8c302f53adc6745264ba2007/21235999432.pdfIn PDF document text
    • https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/36a16e1decc04d29d081e23728447fbc/7767259587.pdfIn PDF document text
    • http://janaturismointegrato.com/uploads/file/61146081435.pdfIn PDF document text
    • https://gtselect.fr/ckfinder/userfiles/files/saxuxuvosekatexajurakul.pdfIn PDF document text
    • http://105chers.netsociality.com/upload/files/97558422264.pdfIn PDF document text
    • https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161e6ff21846ec---57710990390.pdfIn PDF document text
    • https://yauspeshen.com/ckfinder/userfiles/files/sibiniwele.pdfIn PDF document text
    • https://vgk.tw/upfile/files/2021/10/06/gobalibetibesadijebodinos.pdfIn PDF document text
    • http://clanlogging.com/images/fck/file/17460992257.pdfIn PDF document text
    • http://thanhcongtechtra.com/upload/files/30723546126.pdfIn PDF document text
    • http://ideatity.com/ckfinder/userfiles/files/87578902337.pdfIn PDF document text
    • http://about-dogs.ru/upload/file/tifezodigudi.pdfIn PDF document text
    • http://arieslog.com/assets/ckeditor/kcfinder/upload/files/60719039382.pdfIn PDF document text
    • http://ge-mak.com/files/mabogufuwipuwiriwok.pdfIn PDF document text
    • http://skomi.ru/img/files/file/310911924.pdfIn PDF document text
    • http://filipdegreef.be/uploads/files/22136736404.pdfIn PDF document text
    • http://mjsolankifoundation.com/fck/imagesfile/denonanegefiw.pdfIn PDF document text
    • http://ssanadia.in/userfiles/file/95780648031.pdfIn PDF document text
    • http://cyuanmei.com/userfiles/file/logugazoxumuxexeba.pdfIn PDF document text
    • http://teknis.it/userfiles/files/titogawo.pdfIn PDF document text
    • https://noglehoma.com/ckeditor/files/files/92637817771.pdfIn PDF document text
    • http://essentielles-theater.de/UserFiles/File/pajijipujiruxoriwug.pdfIn PDF document text
    • https://ddc-touggourt.dz/ar/files/givirawe.pdfIn PDF document text
    • https://funeralinnovations.com/copilots/upload/files/vimewadawofi.pdfIn PDF document text
    • http://ertekeles.diakszempont.hu/userfiles/file/92672965139.pdfIn PDF document text
    • http://eternaseguros.net/files/files/38362330346.pdfIn PDF document text
    • https://xedulichhaiphong.vn/images/news/files/jeluzubumijopikikasu.pdfIn PDF document text
    • https://tavio.ru/files/file/lixuk.pdfIn PDF document text
    • http://waetsukai.jp/system/ckfinder/userfiles/files/97371473601.pdfIn PDF document text
    • https://fme.ba/kcfinder/files/53837131536.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_off00052319.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52319 10780 bytes
SHA-256: 476a6b59babb83bc56f2aa2bcb93daea07290b9ca9e60a04b882afcaff19eb8a
font_01_sfnt_off00053be2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53BE2 17196 bytes
SHA-256: 0a1ca705f64533456d3eca7289fb68404ff50d402ab0ce2be8ce83f580619490
font_02_sfnt_off000568b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x568B0 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9

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