Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d86296055768446…

MALICIOUS

PDF

601.8 KB Created: 2022-01-19 14:16:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: a48bfb373d0b000128b7209009d9bf7d SHA-1: a03bbaa5c13e506d5f669b1da056109407a4b0e5 SHA-256: 5d86296055768446201f72be8c107ce3a3a77c897444ba17086385ea369aadb7
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4247

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://garglob.ru/uplcv?utm_term=conditionals+1+worksheets+pdf PDF link annotation
    • http://kaitianjinghua.cn/admin/userfiles/file/202109060828024639.pdfIn PDF document text
    • http://uat2.hkha.com.hk/ckfinder/userfiles/files/21470339274.pdfIn PDF document text
    • https://kuadrifoglio.it/upload/userfiles/files/43724193616.pdfIn PDF document text
    • http://vodokanal-proh.ru/files/files/luxixosotofinipelopo.pdfIn PDF document text
    • https://sunriseinnjasper.com/nbloom/fckuploads/file/8542476748.pdfIn PDF document text
    • http://www.bluefashion.cz/ckfinder/userfiles/files/45763607914.pdfIn PDF document text
    • https://luckysurface.itweald.com/uploads/files/614f3736330e2.pdfIn PDF document text
    • https://polenhosting.com/calisma2/files/uploads/ganifi.pdfIn PDF document text
    • https://trungtamgiasuhcmmq.com/uplaod/quangtri/files/54111089199.pdfIn PDF document text
    • https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/161aa32738055c---kakemumutu.pdfIn PDF document text
    • http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/16132654f779aa---14164507547.pdfIn PDF document text
    • https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161617583d5ea5---vekazenodebuwexesum.pdfIn PDF document text
    • http://harringtonassociateslaw.com/Test/JabzMedicalBillingService/userfiles/file/bexesororowonubudo.pdfIn PDF document text
    • http://jiab.net/userData/board/file/rapasoxofufozebojuzipul.pdfIn PDF document text
    • http://gesundezellen.com/neu/userfiles/file/49943565833.pdfIn PDF document text
    • http://doingthing.com/downloads/blog/geust/files/filaxoxojavomaxelara.pdfIn PDF document text
    • http://softtox.com/new/userfiles/file/tebiludow.pdfIn PDF document text
    • http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/161aec362e6d5e---16242152351.pdfIn PDF document text
    • https://www.azulejositurry.com/wp-content/plugins/super-forms/uploads/php/files/3tkrato44fle03ds97a3gu45s6/ludaf.pdfIn PDF document text
    • https://fluffy-chins.com/images/file/vapilopusazuve.pdfIn PDF document text
    • https://jmtours.co/aym_image/files/8309134101.pdfIn PDF document text
    • http://valkexclusief.reviews/app/webroot/files/usf/files/12383099181.pdfIn PDF document text
    • http://vinmexindia.com/uploads/zinebulifamitafiwewepum.pdfIn PDF document text
    • http://voltgroup.com.ua/assets/kcfinder/upload/files/fusaxerojive.pdfIn PDF document text
    • https://questyme.ca/userfiles/file/14274641284.pdfIn PDF document text
    • http://strojsteel.cz/webpagebuilder/ckfinder/userfiles/files/79080155803.pdfIn PDF document text
    • https://superstolarz.pl/files/files/kugenu.pdfIn PDF document text
    • https://www.procotech.be/ckeditor/kcfinder/upload/files/majejebiwo.pdfIn PDF document text
    • http://saeronbio.com/userData/board/file/gikedejovokibe.pdfIn PDF document text
    • http://www.trisad.kz/ckfinder/userfiles/files/jekewi.pdfIn PDF document text
    • http://pereplanirovkaoblast.ru/pict/file/xifoxoza.pdfIn PDF document text
    • https://sunarchegypt.com/userfiles/file/zazaderutisipebunaje.pdfIn PDF document text
    • http://synthecinter.com/userfiles/files/fewovuroxazinadudupobiba.pdfIn PDF document text
    • https://www.cltservices.net/backoffice/kcfinder/upload/files/31777002102.pdfIn PDF document text
    • http://oecschool.com/userfiles/file/kuketopiz.pdfIn PDF document text
    • http://dietmoiquangle.com/webroot/img/files/21463736765.pdfIn PDF document text
    • http://ros-audit.com/i/up/file/3575413197.pdfIn PDF document text
    • http://jor-agric-aqua.com/user_img/files/wenefuvepisijepivugu.pdfIn PDF document text
    • http://clainvest.pl/userfiles/file/32347371224.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_off0008f986.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F986 10856 bytes
SHA-256: a33ce59e223478f9f454174a5c2222be3901e2807161193f00ca0c44484087d0
font_01_sfnt_off000912ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x912AD 17720 bytes
SHA-256: 93a307f2fd0751edcfa7e7f9891350c9feece6fcc39bf12a9fa5d1fd5e328f71
font_02_sfnt_off000940dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x940DD 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336