Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd73a19072a72a24…

MALICIOUS

PDF

361.2 KB Created: 2022-01-19 19:54:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: c9e165f71ac9b00aa052d96e82894807 SHA-1: c009649f92bad1d6bebf646d0040d86769325c52 SHA-256: cd73a19072a72a2428fb1632a408ebc8710241fd2b4bb2a2314060f40cfc25ea
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6543

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://mtcnx.com/upload/fckimagesfile/linizerumidas.pdf In PDF document text
    • http://www.forexfunction.com/ckeditor/kcfinder/upload/files/58605531604.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ccc91718da0---53534019335.pdfIn PDF document text
    • http://geoman.cz/data/file/58862556560.pdfIn PDF document text
    • https://toyotaautobody.com/ckfinder/userfiles/files/fudokavadonukijisoxolereb.pdfIn PDF document text
    • https://123natura.com/stockages/files/kafebofile.pdfIn PDF document text
    • http://uniquehotelsolutions.com/files/others/37160032875.pdfIn PDF document text
    • http://milkyway-vn.com/upload/files/dobikikakese.pdfIn PDF document text
    • http://trungnguyenjsc.vn/uploads/image/files/28113315647.pdfIn PDF document text
    • https://bbpartner.cz/userfiles/file/medigum.pdfIn PDF document text
    • http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618dbf6c6c4b4---30520261667.pdfIn PDF document text
    • https://www.padanguparduotuve.lt/ckfinder/userfiles/files/zoxivepav.pdfIn PDF document text
    • http://bowlingkillers.com/imgdb/files/gebatuxolakidarukedu.pdfIn PDF document text
    • http://autosoftware.company/autoresponders_images/files/79224928845.pdfIn PDF document text
    • http://xn----8sbfeahwarn6ac1adp3fb2p.xn--p1ai/userfiles/file/xojuma.pdfIn PDF document text
    • http://tycoonmedical.com/userfiles/file/kozekap.pdfIn PDF document text
    • https://akanaymatbaa.com/calisma2/files/uploads/xudulevusomamo.pdfIn PDF document text
    • https://bhiringisamsankalimandir.org/ckfinder/userfiles/files/56302642364.pdfIn PDF document text
    • http://perlawarmii.pl/userfiles/file/40081415044.pdfIn PDF document text
    • http://kaithompson.com/userfiles/file/pomovi.pdfIn PDF document text
    • https://cicasoftavukatwebsitesi.demowebsiteleri.com/upload/files/80636778130.pdfIn PDF document text
    • http://hawaiianhunareiki.it/file/lagezituditabuxujujejale.pdfIn PDF document text
    • http://sk-massimo.com/js/upload/files/30488803574.pdfIn PDF document text
    • https://playerpress.com/ckfinder/userfiles/files/sedab.pdfIn PDF document text
    • http://theurbanbazzaar.com/userfiles/file/3827464436.pdfIn PDF document text
    • http://kondicionery-himki.ru/upload_picture/file/86432679447.pdfIn PDF document text
    • http://araratmebel.ru/img/file/zijidurizobugevusuni.pdfIn PDF document text
    • http://atad.ae/emanager/assets/ckeditor/plugins/kcfinder/upload/files/pifodo.pdfIn PDF document text
    • https://karate2.cdmedia.pl/userfiles/file/37547880700.pdfIn PDF document text
    • http://babyindex.nl/images/uploads/23289330977.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/EqozwcbAC44/uplcv?utm_term=high+school+vocabulary+word+list+pdfPDF 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 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_off00053de5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53DE5 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off00055484.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55484 15296 bytes
SHA-256: fd786e751001baeec8bb19b2e9a35908ae73c4adaec6455347a562f4fea726ae
font_02_sfnt_off00057b24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57B24 11160 bytes
SHA-256: f9a505eed25805bf7b8533c3469ea8dcef3a3976b95f6ed9aede9650cb138ce4