Malicious PDF — malware analysis report

Static analysis result for SHA-256 88ba3d07a5694c20…

MALICIOUS

PDF

292.2 KB Created: 2022-03-10 11:43:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-03
MD5: ca14707b321aff2b0321a30438501f7b SHA-1: 1f66e9546f03b2dbd5be4dd47c19aed7c06ab649 SHA-256: 88ba3d07a5694c208b48f27f006ea472b4388aecbaad74259ee6ef65f781038e
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9535

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.
  • 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://loheb.co.za/XSRYdR1H?utm_term=entropia+universe+beginner+guide PDF link annotation
    • http://bluelakehomestay.com/uploads/image/files/muxowidosesozu.pdfIn PDF document text
    • http://circolosilverblufitnessclub.eu/userfiles/files/nulaze.pdfIn PDF document text
    • http://www.veedik.com/assets/admin/kcfinder/upload/files/xaduganu.pdfIn PDF document text
    • http://darelbachra.com/app/webroot/js/kcfinder/upload/files/88537534037.pdfIn PDF document text
    • https://chataigne-cevennes.fr/imgs/files/4328414377.pdfIn PDF document text
    • http://inbond-cn.com/userfiles/file/45118775061.pdfIn PDF document text
    • http://qazaqbanki.kz/data/content/files/56472794926.pdfIn PDF document text
    • https://nazrabilisim.com/calisma2/files/uploads/zepinarotumajafawitedefo.pdfIn PDF document text
    • http://ruihuitax.com/files/file/8526996768.pdfIn PDF document text
    • http://goodslib.com/userfiles/file/85978257102.pdfIn PDF document text
    • http://architettotamborra.eu/userfiles/files/46911846236.pdfIn PDF document text
    • http://valleytechltd.com/assets/ckeditor/kcfinder/upload/files/bimutazejanab.pdfIn PDF document text
    • http://faithhh.net/js/kcfinder/upload/files/15443838625.pdfIn PDF document text
    • https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/7lpr20v0i5u4tahmc5c4cmg6d7/49903655665.pdfIn PDF document text
    • https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1620f52d485c3c---tubibikefagidabexajos.pdfIn PDF document text
    • https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/16224fafc098fc---28682841510.pdfIn PDF document text
    • http://1night2day.com/UserFiles/file/xulatodekan.pdfIn PDF document text
    • http://robinph.com/images/file/lajugejufefoseni.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_off00042146.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00042146.bin)

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00042146.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42146 10808 bytes
SHA-256: 4497a05ad7a3c78ec07b202baaee9b4a6277ff4d6a9404d8c101c0809088553b
font_01_sfnt_off000439ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x439EA 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00045105.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45105 18952 bytes
SHA-256: dcab6e13a6ac3dae4d03d686bedc27679df6f46283611c3ad4094af2fc479f40

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