Malicious PDF — malware analysis report

Static analysis result for SHA-256 634efa7f9c0f7826…

MALICIOUS

PDF

359.3 KB Created: 2022-04-15 23:14:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-28
MD5: fc4428f57b3256f5482090abb92e75e0 SHA-1: 018fa6ee4f58e033b12d87f7cdba600685f0a972 SHA-256: 634efa7f9c0f7826303febef6736e0af28d5a8a7941723c589e21aa1c65b94d9
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6763

Heuristics 5

  • 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.
  • 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://podar.co.za/XSRYdR1H?utm_term=horton+hears+a+who+flower+template PDF link annotation
    • https://ideylia.fr/uploads/file/mexokosimumuzikiwoj.pdfIn PDF document text
    • http://namaslennikova.ru/kcfinder/upload/files/46477654940.pdfIn PDF document text
    • http://www.kickcommerce.com/userfiles/file/43815726071.pdfIn PDF document text
    • http://em-mould.com/ckfinder/userfiles/files/deporunodofigutewoz.pdfIn PDF document text
    • http://momsystem.ru/public/file/24881160168.pdfIn PDF document text
    • http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/1620acb497ae94---43548599222.pdfIn PDF document text
    • http://ci-tesco.com/kcfinder/upload/files/timovumufawuvad.pdfIn PDF document text
    • https://mimifutugeteze.weebly.com/uploads/1/3/0/8/130874087/pibopixunin.pdfIn PDF document text
    • https://www.mds-horizons.com/upload/files/panotaxajelodedowufi.pdfIn PDF document text
    • https://eco-translation.ca/upload/editor/file/37625357040.pdfIn PDF document text
    • http://xn--zb0bw3kv4s8mn.com/upload/fckeditor/file/tamixugux.pdfIn PDF document text
    • http://clinicaveterinariasangiacomo.it/userfiles/files/18244278713.pdfIn PDF document text
    • https://namphuctourist.com/userfiles/file/27010578205.pdfIn PDF document text
    • http://www.amis-simserhof.fr/kcfinder/upload/files/47312420849.pdfIn PDF document text
    • https://ridhichowdary.com/assets/ckeditor/kcfinder/upload/files/62443349332.pdfIn PDF document text
    • http://realfootball.gr/userfiles/file/gagedowexezu.pdfIn PDF document text
    • https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1621329861d7bb---10378667548.pdfIn PDF document text
    • http://obraz-tlt.ru/userfiles/file/rojuper.pdfIn PDF document text
    • https://lelibajoterudu.weebly.com/uploads/1/3/4/0/134042739/fewizupukupibo_tekaju_xiguxo.pdfIn PDF document text
    • https://goldfieldssanddrags.com.au/ckfinder/userfiles/files/ralikinakesaxazeliva.pdfIn PDF document text
    • https://123natura.com/stockages/files/65712428451.pdfIn PDF document text
    • https://loppisidjupdalen.se/images/uploaded/file/newajewutulabitoxida.pdfIn PDF document text
    • https://westpakusa.com/phpsites/vertical_living/uploads/file/gezirofofupinesa.pdfIn PDF document text
    • https://www.fcefrance.com/kcfinder/upload/files/bosabojalux.pdfIn PDF document text
    • http://vp-concept.ch/app/webroot/kcfinder/upload/files/jisasoratomusarevalof.pdfIn PDF document text
    • https://tofigota.weebly.com/uploads/1/3/0/7/130775321/d094051331.pdfIn PDF document text
    • http://sandsflooring.co.uk/ckfinder/userfiles/files/guronekuril.pdfIn PDF document text
    • https://rigepapesoruzu.weebly.com/uploads/1/3/4/5/134519565/tefote.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_off00052ef3.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00052ef3.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052ef3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52EF3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00054705.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54705 18120 bytes
SHA-256: f6aac310c636ac2f0eac8da19c1d82888e98b3cff06aaed0c7e89562ac393afc
font_02_sfnt_off000575ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x575EE 10608 bytes
SHA-256: faf444bf404e1871f6a7e1c539a54ff3a76604916cb6efe4dda7ebb07e362a9b