Malicious PDF — malware analysis report

Static analysis result for SHA-256 d50c12e55d517a0c…

MALICIOUS

PDF

216.0 KB Created: 2022-03-24 09:53:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-29
MD5: 8b0b8ffc47648baeccf001f437e82be9 SHA-1: fa57eb3afaf84797bb4531f99671582b7305f8ec SHA-256: d50c12e55d517a0c38f9f4a99ae1e786215ecd5537f32b2fd30bf2af20169730
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8390

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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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.
  • 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://wirut.co.za/XSRYdR1H?utm_term=android+utorrent+file+location PDF link annotation
    • https://mami-m.com/Uploads/userfiles/files/8544396234.pdfIn PDF document text
    • https://jainajewellers.com/kcfinder/upload/files/dawogevebisoxabugubi.pdfIn PDF document text
    • http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/162385a8cd68aa---kovupixaz.pdfIn PDF document text
    • http://haki.tincorner.com/uploads/files/39369057540.pdfIn PDF document text
    • http://at2apigroup3.com/contents/files/47787672629.pdfIn PDF document text
    • http://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/rusujuzud.pdfIn PDF document text
    • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/162165e9a6ab9f---vexazan.pdfIn PDF document text
    • https://gemwares.iceleajewel.com/userfiles/file/togukob.pdfIn PDF document text
    • http://bong-dem-long.org/upload/editor/files/75261595732.pdfIn PDF document text
    • http://thucphamchucnangmy.vn/uploads/files/dopotuvevin.pdfIn PDF document text
    • https://www.elshandmadedesign.nl/ckfinder/userfiles/files/61854195048.pdfIn PDF document text
    • https://pmayassam.in/assets/kcfinder/upload/files/pebuk.pdfIn PDF document text
    • http://xn--299a941ap1h.com/userfiles/file/20220208092628.pdfIn PDF document text
    • http://piqiso.ru/userfiles/file/tabimib.pdfIn PDF document text
    • http://dok-vo.ru/userfiles/file/lezobonozokixajiber.pdfIn PDF document text
    • http://charge-box.at/upload/files/dedogidolisewudubaru.pdfIn PDF document text
    • https://twojeloty.pl/admin/kcfinder/upload/files/rizelipon.pdfIn PDF document text
    • http://sherpakhabar.com/dbros/public/ckeditor/kcfinder/upload/files/jijodezebitase.pdfIn PDF document text
    • https://nezrenpin.com/calisma2/files/uploads/wajowabibogugo.pdfIn PDF document text
    • http://metaphorcreators.com/kcfinder/upload/files/43705092178.pdfIn PDF document text
    • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/1623a3c280681c---26743329568.pdfIn PDF document text
    • https://plasticosgyc.co/kcfinder/upload/files/38126096368.pdfIn PDF document text
    • http://conflictfreeelectronics.com/ourprojects/chowki/UserFiles/renuka/file/gamipokutolixevukiwitivo.pdfIn PDF document text
    • http://damutech.kz/upload/2022/03files/220319092839702853d1cw0.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_off0002f05f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F05F 10380 bytes
SHA-256: b1ef73c527e39b750f07249c05bdfc9f8db1ed593a8e30850ce80f1cd6fffe90
font_01_sfnt_off000307fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x307FC 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00031f17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31F17 19108 bytes
SHA-256: b6eefe4372cd719b6f9713478be76b13652bf4a032616b0762d3bda9d57f0465