Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f7f88fc3571303…

MALICIOUS

PDF

410.2 KB Created: 2022-03-12 05:34:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-02
MD5: 27bf94643dedc4214a0d3383cf9844a3 SHA-1: cb24d726097b449de223936862e23adcc92653ce SHA-256: a4f7f88fc35713030d159cc9b645f729118933e347e2cbd4e7343c155fa487c7
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5484

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
  • Travel-support phone-number stuffing scam critical SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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://norin.co.za/XSRYdR1H?utm_term=before+the+rains+movie PDF link annotation
    • http://umpn.pnl.ac.id/asset/kcfinder/upload/files/14717030767.pdfIn PDF document text
    • http://pwmtqatar.net/userfiles/file/59479453971.pdfIn PDF document text
    • https://kameno.bg/userfiles/files/7965357224.pdfIn PDF document text
    • http://csc0535.com/userfiles/file/20220228075759_w379ck.pdfIn PDF document text
    • http://nellion.ru/upload/files/sotegokobatoxamenusam.pdfIn PDF document text
    • https://edgecs.com/documents/kufefigagidawoluzevux.pdfIn PDF document text
    • http://metaphorcreators.com/kcfinder/upload/files/12619264376.pdfIn PDF document text
    • http://rayocazar.com/images/elfinder-1.1/files/file/diretakarajomivajor.pdfIn PDF document text
    • https://pristineleather.com/userfiles/file/tajab.pdfIn PDF document text
    • http://progettarecasa.com/userfiles/files/93762340741.pdfIn PDF document text
    • http://erictex.com/ufiles/files/nusupeworedujivase.pdfIn PDF document text
    • http://cuoredicane.it/userfiles/files/21438453833.pdfIn PDF document text
    • http://eortak.com/img/fck_temp/file/faberigeduxavenimoremox.pdfIn PDF document text
    • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/1622905347ac2c---38973678154.pdfIn PDF document text
    • https://sinditamaraty.org.br/site/public/ckeditor/kcfinder/upload/files/lakufiter.pdfIn PDF document text
    • https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files/jumisufuvovimupuwulol.pdfIn PDF document text
    • https://nodka.eu/ckeditor/ckfinder/userfiles/files/rubafavokodog.pdfIn PDF document text
    • http://zdk-engels.ru/upload2/files/lanoreloxinipet.pdfIn PDF document text
    • http://billedbutikken.dk/articlefiles/file/20103628739.pdfIn PDF document text
    • https://bloomland.com/sites/bloomland.com/files/4814707250.pdfIn PDF document text
    • http://grandviewgroupresort.com/upload/files/679954003.pdfIn PDF document text
    • http://forensique.ch/app/webroot/kcfinder/upload/files/sapuxujejekano.pdfIn PDF document text
    • https://komodovo.ru/upload_picture/66952288549.pdfIn PDF document text
    • http://alfadent-volg.ru/images_uploads/files/21455353298.pdfIn PDF document text
    • http://serviskytar.cz/kcfinder/upload/files/setupixek.pdfIn PDF document text
    • http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/1622b21a791dcf---88241541454.pdfIn PDF document text
    • http://miyagi.chi-kara.net/Upload/files/kalot.pdfIn PDF document text
    • http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/1621439322cf06---19370026197.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_off0005f832.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005f832.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005f832.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F832 10552 bytes
SHA-256: 56587c9d8917c89ef43a274bcc4191daf875dc48732ebe169efe9959f1fe59f3
font_01_sfnt_off0006101d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6101D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00062738.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62738 19188 bytes
SHA-256: 12c8cbb6a6d8cb68cde466ac152fd848f22968fb4958d0a7c8310c2ff5bf949d