Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa85e5522d2a9b2c…

MALICIOUS

PDF

215.8 KB Created: 2022-01-29 07:11:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 5b4a63e4473cfc4fe2c64dc07b1f8e8d SHA-1: 7d322664ab1102a8e88625e1fca08f641469709e SHA-256: aa85e5522d2a9b2c7107c4c9a89701aa246f8f115656a567ec076ea29b83330e
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8404

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://podar.co.za/XSRYdR1H?utm_term=baseball+boy+mod+apk+ios PDF link annotation
    • http://oppedisanorobertosrl.com/userfiles/files/xaxofutudo.pdfIn PDF document text
    • http://suachuadienlanhhoaphat.com/hinhanh_fckeditor/file/81071333956.pdfIn PDF document text
    • http://korea-labels.com/ckfinder/userfiles/files/vejowakimudajomu.pdfIn PDF document text
    • https://krzczonowice.pl/gfx/file/52639467356.pdfIn PDF document text
    • http://quickwaycargo.com/userfiles/file/13097525002.pdfIn PDF document text
    • https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145a752513d5---93425443832.pdfIn PDF document text
    • http://maezawa-jidousha.com/js/upload/files/318106305.pdfIn PDF document text
    • https://asiastudy.in/ckfinder/userfiles/files/nopur.pdfIn PDF document text
    • https://amgab.se/wp-content/plugins/formcraft/file-upload/server/content/files/1618a059c0dfde---zubevasegi.pdfIn PDF document text
    • https://solidpractise.com/files/userfiles/file/wedar.pdfIn PDF document text
    • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/161bbef5e6f0f4---38925508473.pdfIn PDF document text
    • http://prosquash.by/data/gotikakura.pdfIn PDF document text
    • http://kultpro.ru/userfiles/files/99204324372.pdfIn PDF document text
    • https://prestinieurope.com/userfiles/files/tijegojexivofebufa.pdfIn PDF document text
    • http://georgewongdesign.com/gwd/upload/files/33266343373.pdfIn PDF document text
    • https://takitech.hu/userfiles/file/pakukumosexuzi.pdfIn PDF document text
    • http://satunatc.ac.th/ckfinder/userfiles/files/78055476010.pdfIn PDF document text
    • http://adance0112.com/upfile/editor/file/44218941958.pdfIn PDF document text
    • http://sirindhorn.net/upload/File/27597081431.pdfIn PDF document text
    • https://securitydm.com/slicice/file/dovetoni.pdfIn PDF document text
    • http://bbckorea.org/user_data/kcfinder/files/34187153041.pdfIn PDF document text
    • http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/afe6eb6677626695e388afd1d9c65bab/21783034400.pdfIn PDF document text
    • https://pui-vital.ro/msg_media/file/35649771894.pdfIn PDF document text
    • https://kalyna.ua/sites/default/files/userfiles/file/65351699935.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_off0002f4a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F4A2 10648 bytes
SHA-256: 3a05bf393875dbf5644139ff2a19d471f4d9fce4009b9728d431290349892757
font_01_sfnt_off00030cd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30CD5 17544 bytes
SHA-256: 2b4cb215c7c2830daff4b2758db09189fcfcd2ff2378fda21644482889d5939b
font_02_sfnt_off000339ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x339EE 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336