Malicious PDF — malware analysis report

Static analysis result for SHA-256 de4f3e4efb4ed206…

MALICIOUS

PDF

554.4 KB Created: 2022-02-16 19:17:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-03
MD5: 013b8f548d4519f88c0eb799cd5913ec SHA-1: 851b90d5776d1d5c9431aa02c068be912b1b2d55 SHA-256: de4f3e4efb4ed206f4f04785219f16902c0c964ddd74ec1e32da08ee184aeb39
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3710

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
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://lovig.co.za/XSRYdR1H?utm_term=format+of+absence+application+letter PDF link annotation
    • https://conexkarvan.com/cache/fck_files/file/zevobi.pdfIn PDF document text
    • https://jordanadams.com/ckfinder/userfiles/files/25463279427.pdfIn PDF document text
    • http://hoya-system.com/uploads/files/202201111757304043.pdfIn PDF document text
    • http://boldino-hotel.com/ckfinder/userfiles/files/besovosewosifekovevodunu.pdfIn PDF document text
    • http://getsolarnj.com/userfiles/file/54524038741.pdfIn PDF document text
    • http://www.web-globus.de/ckfinder/userfiles/files/dewovononelamugowine.pdfIn PDF document text
    • http://makeyourpartnermelt.com/userfiles/file/56981346628.pdfIn PDF document text
    • https://benqmusicworkshop.com/fupload/file/5440858294.pdfIn PDF document text
    • https://grupo.iberia.es/js/ckfinder/userfiles/files/55412511283.pdfIn PDF document text
    • https://datajournonepal.org/files/ruveriragezunelinad.pdfIn PDF document text
    • https://thehideawayresortpattaya.com/userfiles/files/sejilorifegixaf.pdfIn PDF document text
    • https://www.hkfew.org.hk/ckfinder/userfiles/files/weliraxepufopobetibitotow.pdfIn PDF document text
    • http://satisfytech.com/ck/upload/files/3409093998.pdfIn PDF document text
    • https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/162096f3ae4204---75754564503.pdfIn PDF document text
    • http://king-pro.com/userfiles/files/53228092298.pdfIn PDF document text
    • https://transilvaniafishing.ro/app/webroot/files/userfiles/files/7882953916.pdfIn PDF document text
    • https://pointvirgule.ca/upload/editor/file/91350457211.pdfIn PDF document text
    • http://haiannweb.com/uploads/files/dukubefakekuxavarego.pdfIn PDF document text
    • http://mecateengenharia.com.br/ckfinder/userfiles/files/goviga.pdfIn PDF document text
    • https://www.blondel-bois.fr/ckfinder/userfiles/files/54922694650.pdfIn PDF document text
    • https://anna-bel.com/app/webroot/files/usf/files/10997703451.pdfIn PDF document text
    • http://chieucoingason.vn/files/57496554200.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620d2052b1322---debisoweveweta.pdfIn PDF document text
    • https://lixtech.com.tw/ckfinder/ckfiles/files/50022938490.pdfIn PDF document text
    • https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140d9e9d114d---98375476276.pdfIn PDF document text
    • http://suphammamnon.org/uploads/files/64314419139.pdfIn PDF document text
    • http://gorzow2.komornik.org/userfiles/file/67422388827.pdfIn PDF document text
    • https://dutchhaves.com/uploads/files/202110070656271593.pdfIn PDF document text
    • http://chi-kara.net/userfiles/file/94279498736.pdfIn PDF document text
    • http://strandkrabbe-hohenfelde.de/sites/default/files/files/wirasatodajosanewa.pdfIn PDF document text
    • http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161b33dd97fbca---45045098693.pdfIn PDF document text
    • http://sushigonewildtogo.com/uploads/files/15138516620.pdfIn PDF document text
    • https://contact-house.com/fckeditor/upload/file/fanuvobosolug.pdfIn PDF document text
    • https://soalmatematik.com/userfiles/file/vutolivaponuditibozapum.pdfIn PDF document text
    • http://premiercontainerlines.com/media/ftp/file/lazokev.pdfIn PDF document text
    • http://eptesteplelek.com/uploads/file/ranedotisono.pdfIn PDF document text
    • http://hytechplus.com/userfiles/file/sujokavida.pdfIn PDF document text
    • https://bak.vn/upload/files/33012453573.pdfIn PDF document text
    • https://sport-jicin.cz/dokumenty/14434790100.pdfIn PDF document text
    • http://kamkmori.cz/ckfinder/userfiles/files/96549585352.pdfIn PDF document text
    • https://www.almuhja.com/ckfinder/userfiles/files/39442333422.pdfIn PDF document text
    • https://kemxoi.vn/app/webroot/files/images/pages/files/makanojebaterejova.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_off00083458.bin)
    +1 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00083458.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83458 19424 bytes
SHA-256: d84a1466f3a4e04a140eb09d2cffe9cfadd09b6dad7af0a5224b8688a2424bef
font_01_sfnt_off00086762.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86762 10756 bytes
SHA-256: 4dc4070601112a03577035e83651fc0769b1acfe124435ea73a6403bf9786da6
font_02_sfnt_off00087fe7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87FE7 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9