Malicious PDF — malware analysis report

Static analysis result for SHA-256 98fbc2fe3b595ddd…

MALICIOUS

PDF

267.5 KB Created: 2021-12-27 16:28:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-08
MD5: 16dee9c3753c032c5a39fce1a8a56711 SHA-1: 24c548e7abd3e28ca2d5f3dc04b214312df1b723 SHA-256: 98fbc2fe3b595dddda592ecf38ce90c4f701dbaab984df585795e5d7f91b97f2
191 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8179

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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://dpkwi.org/userfiles/files/10474512571.pdf In PDF document text
    • http://xn--80aafbkbafwdti1ahihccrg.xn--p1ai/pict/file/savarejirijatabatatokerid.pdfIn PDF document text
    • http://iba.education/kcfinder/upload/files/10084858289.pdfIn PDF document text
    • http://kleinschadenexperte.de/userfiles/file/55747078073.pdfIn PDF document text
    • http://baaningdoi.com/file_media/file_image/file/2262689989.pdfIn PDF document text
    • http://jszl-rolls.com/filespath/files/20210907142126.pdfIn PDF document text
    • http://ssatripoli.org/userfiles/file/sawuseva.pdfIn PDF document text
    • http://bratislava.topenglish.sk/app/webroot/gallery/files/kenuxilijidaxizimogiji.pdfIn PDF document text
    • http://h-st.nl/bestanden/files/jixenijikavefa.pdfIn PDF document text
    • http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/161c88eb36a292---30276683638.pdfIn PDF document text
    • http://cansuyu.org/resimler/files/48311573629.pdfIn PDF document text
    • http://kimwendelldesign.com/ckfinder/userfiles/files/wilodirojep.pdfIn PDF document text
    • https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/at6ehh3kahpibaukmbj4qan1c0/kitudugazoli.pdfIn PDF document text
    • http://myflora888.com/ck_files/files/71180905506.pdfIn PDF document text
    • http://pop-around.com/file_media/file_image/file/93801283503.pdfIn PDF document text
    • http://hyosangjo.com/userfiles/file/20210924182051.pdfIn PDF document text
    • http://mousike.it/img_ins/files/derurulezadanukokemidev.pdfIn PDF document text
    • http://terezszilvia.com/images/uploaded/file/fugedutagoluragaramet.pdfIn PDF document text
    • https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/161a99c3469040---25532298343.pdfIn PDF document text
    • http://nature-revive.org/files/file/voxitavorupadela.pdfIn PDF document text
    • https://russiandance.ru/frontend/web/js/kcfinder/upload/files/78706270402.pdfIn PDF document text
    • https://shirbandifelt.com/userfiles/file/83246146197.pdfIn PDF document text
    • https://smidgel.ru/uplcv?utm_term=pedometer+android+studio+codePDF link annotation
    • https://ducan.knjigae.com/userfiles/file/1146007202.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_off0003beb6.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003beb6.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003beb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3BEB6 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0003d55a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D55A 10584 bytes
SHA-256: 00d360da792633346d348e10c568c68aa676ced5048146d81d57800f0704c182
font_02_sfnt_off0003ed82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3ED82 19000 bytes
SHA-256: 6554b7a874a2b520a26ffc102b57d17b477fafe317cf0c4cc984fef4d9361626