Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c6498bd22bfa751…

MALICIOUS

PDF

375.3 KB Created: 2022-03-02 16:06:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-06
MD5: 4bc66b91093d6113a9593287f775968a SHA-1: 4c9d534c83a14d73d5bb95b4f82bfd2c3d054a23 SHA-256: 6c6498bd22bfa751e16dfc6cb5fa8c5f3cb506ca03ab13d3b904a788076c97f2
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6448

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 http://classicalgardenfountains.com/uplds/file/jezatowiwigiwibaxux.pdf In PDF document text
    • http://bwemfjhjk.friend-match.com/upload/files/19015355926.pdfIn PDF document text
    • https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/e848434ae60334d3c4edb2d630b8ca1c/65925757491.pdfIn PDF document text
    • https://nesselaarbestratingen.nl/plaatjes/file/86793549071.pdfIn PDF document text
    • http://dulichgiahy.com/upload/file/35897092671.pdfIn PDF document text
    • https://temahr.hr/files/pisadawaxowodokesusawon.pdfIn PDF document text
    • http://nattukoottam.com/userfiles/file/65433333040.pdfIn PDF document text
    • https://mytshirtcreator.com/app/webroot/files/file/lalupudizolaron.pdfIn PDF document text
    • https://rtvpuls.com/ckfinder/userfiles/files/sixodozidikukope.pdfIn PDF document text
    • https://am-system.eu/ckfinder/userfiles/files/jidijowarevatizabotip.pdfIn PDF document text
    • https://anotera.kopro.fr/userfiles/file/16095259821.pdfIn PDF document text
    • https://supermagnum-bg.com/userfiles/file/likinutes.pdfIn PDF document text
    • http://z-him.ru/userfiles/file/45578586044.pdfIn PDF document text
    • https://www.au-holding.ru/kcfinder/upload/files/fowusasumorero.pdfIn PDF document text
    • https://administrador.bannik.com/benkio/files/xulakoketozutigafamiraz.pdfIn PDF document text
    • http://startent.ru/SITE/files/editor/file/pilexujeduzekafoj.pdfIn PDF document text
    • https://kodeac.com/wp-content/plugins/super-forms/uploads/php/files/qh8olrrq5ormpmgn54il56jooa/29761352621.pdfIn PDF document text
    • https://directglobal.ro/files/file/lutavovurej.pdfIn PDF document text
    • https://tramtron.vn/uploads/files/files/pinexurigamifuwesifebu.pdfIn PDF document text
    • http://kshp-company.ru/userfiles/file/wibiluniwugusafovomepef.pdfIn PDF document text
    • https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/8ba4fc80bd0773d010e52b19e1de30f9/74479547170.pdfIn PDF document text
    • https://themalc.org/files/file/gisoxomofugetugerar.pdfIn PDF document text
    • http://coreaad.com/DreamDataUpload/file/xexab.pdfIn PDF document text
    • http://gartenstadt-apotheke.com/userfiles/file/rakazikol.pdfIn PDF document text
    • http://faurau.com/luodan/images/userfiles/file/4760987861.pdfIn PDF document text
    • https://voskovefiguriny.eu/kcfinder/upload/files/64027010883.pdfIn PDF document text
    • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/1621e9ae129a1b---22183190667.pdfIn PDF document text
    • http://robvancampen.nl/userfiles/file/vutiwedofewojotuvako.pdfIn PDF document text
    • https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/98d4c16484554200a117d90d8290829e/65225637547.pdfIn PDF document text
    • https://premiumvipbusiness.com/wp-content/plugins/super-forms/uploads/php/files/c42b94c7b3386721356e67438b7aeaa0/masanizu.pdfIn PDF document text
    • http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620685a3e4a41---malogolawuxonomirulozes.pdfIn PDF document text
    • http://chandox.yun2u.com/upload/files/42446530950.pdfIn PDF document text
    • http://coffeexclusive.co.uk/kcfinder/upload/files/vukofonewisalu.pdfIn PDF document text
    • https://yubit.co.za/XSRYdR1H?utm_term=free+home+education+worksheets+ukPDF link annotation
    • http://thrifthelp.com/flash/thrifthelp.com/file/mudeganadikodururagederuj.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_off00057098.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00057098.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057098.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57098 17260 bytes
SHA-256: fdcdfc1b482b9a48787924ac790bde84bfc165c25ff42d7ea67481cc9889a592
font_01_sfnt_off00059d31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59D31 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0005b451.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B451 10844 bytes
SHA-256: d612a1dc66c4dd98ea03af4a9e010445bf1137cccbb875639eb17f2031f33dde