Malicious PDF — malware analysis report

Static analysis result for SHA-256 f990590475c8c2f1…

MALICIOUS

PDF

478.5 KB Created: 2022-02-06 06:10:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: b879b0994fec3df1c52db27ce9375bab SHA-1: 067c86c90322a857453fa4e2004b13bc7301c9af SHA-256: f990590475c8c2f10c3077bfb2d8d6f9292d02eb8de99ef2fa516dc5d6e2062d
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4616

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://lazav.co.za/XSRYdR1H?utm_term=oxford+phonics+3+pdf PDF link annotation
    • http://www.catedralirodahaz.hu/data/editorfile/50606940625.pdfIn PDF document text
    • http://mail49.imgwill.com/editor/images/file/3921_20211128055143.pdfIn PDF document text
    • http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161e34167d0b46---nuxevibop.pdfIn PDF document text
    • https://ximatinhdongnai.com/app/webroot/files/images/pages/files/sorujimefodedanenijonof.pdfIn PDF document text
    • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/161053871efaa5---78494330681.pdfIn PDF document text
    • https://www.mountainhawktrek.com/assets/kcfinder/upload/files/kogumobumenoradilas.pdfIn PDF document text
    • http://azseal.net/uploads/userfiles/file/17230784777.pdfIn PDF document text
    • https://aathichudi.org/userfiles/file/buzimizulomelutul.pdfIn PDF document text
    • http://keemunblacktea.cn/uploads/file/310132123641.pdfIn PDF document text
    • https://chaletvenay.skidnapping.com/uploadfiles/files/49578640369.pdfIn PDF document text
    • https://clubesolbra.com/uploads/files/67716092856.pdfIn PDF document text
    • https://rintrans.com/files/lisavaz.pdfIn PDF document text
    • http://pieseclimaauto.com/files/file/koxutimulasumadipa.pdfIn PDF document text
    • http://glaukom.cz/upload/files/pugogipom.pdfIn PDF document text
    • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/161593e2607abd---54705277205.pdfIn PDF document text
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1612111637389c---lerap.pdfIn PDF document text
    • http://askort.pl/Upload/file/22342163844.pdfIn PDF document text
    • http://drironcat.com/images/file/likike.pdfIn PDF document text
    • http://ahjygjg.com/upload_fck/file/2021-12-7/20211207162621181207.pdfIn PDF document text
    • https://jxlmedu.com/file/files/20211126_195637.pdfIn PDF document text
    • http://membre3.trajetplus.fr/userDocs/file/bosogove.pdfIn PDF document text
    • http://es88.tw/pro_pic/files/kupudedixiduweni.pdfIn PDF document text
    • http://lesen-und-schenken.de/userfiles/files/83712915663.pdfIn PDF document text
    • http://ristoranteibucanieri.it/userfiles/files/79597689783.pdfIn PDF document text
    • http://aktifbant.com/resimler/files/dezolinezixefegazivufalid.pdfIn PDF document text
    • https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/cc146333c7b767d74ba2cbacc99cab46/44909872481.pdfIn PDF document text
    • http://piannocreativo.com/js/new/fckeditor/userfiles/file/tonerabamadimuzubafopak.pdfIn PDF document text
    • http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161d9e5e6b470e---pemelu.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_off00070506.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70506 24380 bytes
SHA-256: 900eb9c5df6dbc6028c29c8a02cbf907ec038ebcbd3dc1a76dde02d5ac7a7067
font_01_sfnt_off00073bbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73BBC 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000752dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x752DC 10576 bytes
SHA-256: 1f1192b078a33200abaab66360f3b8ff7ff0e81f4b8fe58247a9727e12bd30cb