Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8bb3088a4b6cf6…

MALICIOUS

PDF

366.1 KB Created: 2022-01-27 09:26:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-07
MD5: c44e64afceb2d9228ad63b7de45988cc SHA-1: e708c7396c6d437d199f193ba093e224966eecbc SHA-256: aa8bb3088a4b6cf6417bf55bb2c60c7274cf25da46fdc8b34fdbebf30d2b096b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7188

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://yubit.co.za/XSRYdR1H?utm_term=monthly+financial+report+template+ppt PDF link annotation
    • https://loyq.ru/admin/upload/photos/library/files/jeduvaw_1642972004.pdfIn PDF document text
    • https://csn-alliance.com/data/files/nosisamukuzusurosojus.pdfIn PDF document text
    • https://sportnazona.bg/f/uploads/files/32401629563.pdfIn PDF document text
    • http://iltorg.ru/upload/file/43058635573.pdfIn PDF document text
    • https://truyenskyt.com/upload/ckeditor/files/menobelajolesaje.pdfIn PDF document text
    • https://www.econiwas.com/econiwascontrol/bower_components/ckeditor/kcfinder/upload/files/mipabekoxagijigew.pdfIn PDF document text
    • https://queensflower.nl/clientfiles/51967128926.pdfIn PDF document text
    • http://www.mswest.co.jp/cmsdesigner/kcfinder/upload/files/zipekikozodarununu.pdfIn PDF document text
    • https://acv-verdun.fr/kcfinder/upload/files/13957772947.pdfIn PDF document text
    • http://www.pro9apps.com/app/webroot/files/uploadimagesfile/91277999504.pdfIn PDF document text
    • https://namratalakhotia.com/userfiles/files/84032436268.pdfIn PDF document text
    • http://www.alfapilates.pl/upload/file/1265840710.pdfIn PDF document text
    • https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/161e0f3ba53fd7---sanojidivugub.pdfIn PDF document text
    • http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/16197edf604ef0---zezadesowejufuvo.pdfIn PDF document text
    • https://faceless.me/userfiles/files/jomozezopig.pdfIn PDF document text
    • http://grafittipng.com/userfiles/files/tafadev.pdfIn PDF document text
    • http://ttmm.co.jp/ckfinder/userfiles/files/50141340383.pdfIn PDF document text
    • https://burkina-businessschool.com/business_school/uploads/file/78333548310.pdfIn PDF document text
    • http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ee18a4e60f0---nupuluwizabavalalat.pdfIn PDF document text
    • http://russkiivopros.com/images/FCKeditor/file/retagi.pdfIn PDF document text
    • https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/386cc208bb6502cc83cb42183546e94f/bemujosozetedesapenek.pdfIn PDF document text
    • http://jsdarvin.com/files/vipesa.pdfIn PDF document text
    • https://turasmobilya.com/img/editor/image/file/zutotuneledonap.pdfIn PDF document text
    • http://glassick.com/userfiles/file/50537538026.pdfIn PDF document text
    • http://location-venise.com/italie_documents/files/xalarigijovorewujimu.pdfIn PDF document text
    • http://xuanfe.com/uploads/FCKeditor/file/gunatujexufalub.pdfIn PDF document text
    • https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a1a505a4360---24810087198.pdfIn PDF document text
    • https://luxm.pl/userfiles/file/zudomemopudagomiliki.pdfIn PDF document text
    • https://tworaise.com/userfiles/file/95018115868.pdfIn PDF document text
    • https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/8l0oemhrqmfoei1q852rkkaef6/98469505263.pdfIn PDF document text
    • https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/0annj7ppail5t91ehnnk3crqd7/32555452422.pdfIn PDF document text
    • http://ficfart.org/userfiles/file/55648624598.pdfIn PDF document text
    • http://gilendor.cz/userfiles/file/49044164654.pdfIn PDF document text
    • http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16170fb0487096---51296785300.pdfIn PDF document text
    • https://vectronic.tech/admin/ckeditor/kcfinder/upload/files/41294532702.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_off00054d24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54D24 10684 bytes
SHA-256: c4ac7bb0d58e162a447b844014aa6a315c4d5a6ff89edb30fad05cacbd46b093
font_01_sfnt_off00056577.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56577 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00057c16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57C16 17192 bytes
SHA-256: 3f48af4139063d185fa38c69d6e40765d1bf8edee2e915455922972072bf31f8