Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0cb11e963f45037…

MALICIOUS

PDF

325.3 KB Created: 2022-04-13 07:46:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-03
MD5: 8f9026d8e05e2af6b1acc5de58e3712d SHA-1: 25767f89b5097b579a5999cfd2b5a6cc514d757c SHA-256: c0cb11e963f4503788f6d45655e09cb74e6147418b10586a89a096772ee60ca0
191 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6677

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://plenerowe.kbo.pl/ckfinder/userfiles/files/33164393591.pdf In PDF document text
    • https://tndvn.com/js/ckfinder/userfiles/files/voxelibopuvi.pdfIn PDF document text
    • https://www.steyr-mannlicher.hu/admin/kcfinder/upload/files/73570822039.pdfIn PDF document text
    • http://partnerplus30.ru/images/fornews/files/55479510706.pdfIn PDF document text
    • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/4751df7cc430af6a8784d46b9b617714/vefutuji.pdfIn PDF document text
    • https://agregadoschucuri.sinecsas.com/ckfinder/userfiles/files/13387729461.pdfIn PDF document text
    • http://fitnessklub-impuls.pl/uploads/assets/file/nigedosanadenag.pdfIn PDF document text
    • http://automsystem.com/UploadFile/file/20220406190527544.pdfIn PDF document text
    • http://tamezou.com/upload/ckfinder/files/wizumowizukufun.pdfIn PDF document text
    • http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/16249ad32a8ced---21561265307.pdfIn PDF document text
    • http://goodmax.ru/i/files/96489603450.pdfIn PDF document text
    • https://craft-personal.de/userfiles/file/bomadekobekibizegu.pdfIn PDF document text
    • http://mediasingrid.com/js/new/fckeditor/userfiles/file/virifobaguj.pdfIn PDF document text
    • http://petgears.com/app/webroot/files/file/rubowinoxup.pdfIn PDF document text
    • https://www.amc-lda.com/assets/kcfinder/upload/files/47299019392.pdfIn PDF document text
    • https://dialogueinpraxis.net/files/docs/zetenifupudasepibaloveto.pdfIn PDF document text
    • https://munkenpo.or.jp/kcfinder/upload/files/lumujitefufanexew.pdfIn PDF document text
    • http://advocaciaciervo.com/kcfinder/upload/files/kawonapokofimebevawaj.pdfIn PDF document text
    • https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1622e6f37605bb---xevenot.pdfIn PDF document text
    • https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/6bf51d224ad1fe249df41e2f7284d292/64182329524.pdfIn PDF document text
    • http://lousart.com.br/ckeditor/kcfinder/upload/files/21236687766.pdfIn PDF document text
    • http://www.fishandcosolicitors.com/uploads/files/1299840933.pdfIn PDF document text
    • http://serramentisiciliano.it/userfiles/files/ludiwekaj.pdfIn PDF document text
    • https://aawyx.com/sites/default/imageuser/file/poxugapolilediwoxada.pdfIn PDF document text
    • http://longbienco.com/js/ckfinder/userfiles/files/fesuledujipaforajuwixez.pdfIn PDF document text
    • http://www.sanjuktabanerjee.com/fckimages/file/3395426826.pdfIn PDF document text
    • https://www.drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/162056bac29e39---lapulizibarari.pdfIn PDF document text
    • http://www.fichetalmeria.com/admin/kcfinder/upload/files/lejuwoloxufabapotu.pdfIn PDF document text
    • http://www.dieseproductions.com/upload/customNews/files/dituten.pdfIn PDF document text
    • http://ariogalospspc.lt/userfiles/file/kudep.pdfIn PDF document text
    • http://biometria.pl/photos_fck/file/97521815959.pdfIn PDF document text
    • https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/1a2d7764d7a0bfdd69893f34a5d569e1/bopudiligixupalil.pdfIn PDF document text
    • http://npxbyy.com/wang3_3_10_27/Upload/Upload/file/2022222447523839.pdfIn PDF document text
    • http://www.cbt-trans.eu/upload/files/20146947417.pdfIn PDF document text
    • http://93564497.com/userfiles/feveniluzerejuponinenabum.pdfIn PDF document text
    • https://www.ibbfvhn.org/recursos/kcfinder/upload/files/68021334854.pdfIn PDF document text
    • https://atwoodgroup.ca/atwoodtechnology/userfiles/file/32671668346.pdfIn PDF document text
    • https://megatekspb.ru/sites/default/files/uploads/65322979780.pdfIn PDF document text
    • https://norin.co.za/XSRYdR1H?utm_term=curse+of+chucky+full+movie++mp4PDF link annotation
    • 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_off0004a7b5.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004a7b5.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004a7b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A7B5 17520 bytes
SHA-256: 3c2e08ceb659e29e0501cfbaa406fe41746707a56f30872ed9ddb8b4022941e8
font_01_sfnt_off0004d47e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D47E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0004ec95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EC95 10860 bytes
SHA-256: 08bdefc6158f98f5c33576fb98f75e607d7dde11ff2c927466657d747c9d6a4c