Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af75a45ab73f034…

MALICIOUS

PDF

243.7 KB Created: 2022-02-02 14:33:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: bea7e96bf52e482b3f7cd90f9aade991 SHA-1: b7487b776c308f5a91845105486f80e34e6cd44b SHA-256: 4af75a45ab73f0341d8a8b4644d8d0ee24f1c45d835e2612068185f6dd5d09a8
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7819

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.
  • 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 https://podar.co.za/XSRYdR1H?utm_term=lightroom+cc+premium+apk+3.+4+free PDF link annotation
    • http://stapper.de/sites/default/files/userfilesfile/52252165920.pdfIn PDF document text
    • http://rediger.vammenkro.dk/upload/files/womopimewotajulujukanowe.pdfIn PDF document text
    • http://ipai-bg.eu/img/file/xabudetunale.pdfIn PDF document text
    • http://alhegazgroup.com/userfiles/file/fiwupag.pdfIn PDF document text
    • https://store-connector.com/_upload_bilder/_filemanager/file/liwosigiwufawige.pdfIn PDF document text
    • http://khaskhaan.mn/uploads/userfiles/files/82206941746.pdfIn PDF document text
    • http://gardenofsound.com/userfiles/files/kiwaresakejuretarisej.pdfIn PDF document text
    • https://watfordfairtrade.org/app/webroot/img/files/wetusimumekukarewaloju.pdfIn PDF document text
    • http://xn--b1agaa2anfqdp.xn--p1ai/ckfinder/userfiles/files/11970786985.pdfIn PDF document text
    • http://srs-budapest.hu/uploads/files/jiroxogudaxovape.pdfIn PDF document text
    • https://www.ogblfrontaliers.fr/wp-content/plugins/super-forms/uploads/php/files/jpvbev4n4gpo9rqma570826917/12740147472.pdfIn PDF document text
    • http://transportdiverse.com/uploads/files/67981856530.pdfIn PDF document text
    • http://isisorganizasyon.net/panel/kcfinder/upload/files/pakutamim.pdfIn PDF document text
    • https://khogiaydantuonghanquoc.com/images/news/file/33384861878.pdfIn PDF document text
    • http://pazzo.jp/js/upload/files/vamifudafekasoxe.pdfIn PDF document text
    • http://globalaircrafttech.com/ckupload/files/11182632257.pdfIn PDF document text
    • https://familienbilstrup.dk/ckfinder/userfiles/files/nakevufit.pdfIn PDF document text
    • https://bodegoncriollo.com/userfiles/file/komirarudapomatasareni.pdfIn PDF document text
    • https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f37ebc314ce---pidakulanus.pdfIn PDF document text
    • http://aodaibooking.com/FileData/ckfinder/files/20210720_29F7DC866E300655.pdfIn PDF document text
    • http://www.rodnolespropertymanagement.com/siteuploads/editorimg/file/33798570052.pdfIn PDF document text
    • http://samtekelektrik.com/files/vilijibifikibexadaz.pdfIn PDF document text
    • https://danangsculpture.com/uploads/image/files/xinisadijiwalokasop.pdfIn PDF document text
    • http://gorzow2.komornik.org/userfiles/file/57422647811.pdfIn PDF document text
    • http://erbamedica.org/userfiles/files/97806549194.pdfIn PDF document text
    • https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1616b7c397bac1---60675561026.pdfIn PDF document text
    • http://ifaistos.reality.gr/~triantaf/images/file/pigitojakotugavu.pdfIn PDF document text
    • http://wib24-admin.de/uploads/file/farijabujunalur.pdfIn PDF document text
    • http://xn----7sbakif2a3azdub.xn--p1ai/admin/ckfinder/userfiles/files/tukudigag.pdfIn PDF document text
    • https://textosl.com/upload/editor/file/8300781625.pdfIn PDF document text
    • http://chongthamnguoc.vn/img/files/difitugexelisogowuf.pdfIn PDF document text
    • http://submission.ksar.kr/pds/userfiles/files/boronu.pdfIn PDF document text
    • http://scales-center.com/shop/fck_file/file/rorisukexafododonefej.pdfIn PDF document text
    • http://abwingsbuffalo.com/uploads/files/fifesafisatajikewezug.pdfIn PDF document text
    • http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/161086750f0165---21882905221.pdfIn PDF document text
    • http://gesgo.de/userfiles/file/85834940802.pdfIn PDF document text
    • http://klubalfa.org/img/userfiles/file/meriromojadofedul.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_off000361a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x361A8 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000378c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x378C3 16996 bytes
SHA-256: 12f0c4ea687d19713d4cec2336026be6b5f0d1eb0e5cc70160b24784fb663310
font_02_sfnt_off0003a559.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A559 11076 bytes
SHA-256: d4f7295b26063460e586e4b0afa6e83a47add9fa28de3ec56d24b1cc3bd8aaa1

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