Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a18e83990eaabc8…

MALICIOUS

PDF

262.0 KB Created: 2022-03-14 21:37:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-31
MD5: f8f4cfaa7f93b35e3e5854d0d0319c2a SHA-1: 8e8cf36327d0dd60caf7f2ddcd8c567831c9d885 SHA-256: 5a18e83990eaabc828d92b5a38fdf196c64a43f7687b9aa8f27e22ace74b093b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7877

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://ragaz.co.za/XSRYdR1H?utm_term=hunter+svc+irrigation+controller+manual PDF link annotation
    • http://biopole.overscan.biz/uploads/gestion_contenu/files/ludafetaxi.pdfIn PDF document text
    • https://kenkochaya.com/user_data/ckfinder/files/biniwofise.pdfIn PDF document text
    • https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/161f971d0b11d3---kudaxugunexexevifina.pdfIn PDF document text
    • https://ehilteknik.com/uploads/files/78200347406.pdfIn PDF document text
    • https://hhwholesaleclub.com/admin/kcfinder/upload/files/wutowefuronulas.pdfIn PDF document text
    • http://hamdannepal.com/userfiles/file/bipugaxelabafojiz.pdfIn PDF document text
    • http://ztkammer.at/uploads/file/xotedelamixinibupeveper.pdfIn PDF document text
    • http://www.greddy.com/admin/common/ckfinder/userfiles/File/punavesirerog.pdfIn PDF document text
    • https://aceold.lrsinc.co/userfiles/file/vikojagun.pdfIn PDF document text
    • http://www.littlebookofjohn.com/kcfinder/upload/files/pufufaturazafi.pdfIn PDF document text
    • https://bkr.jetdesign.pl/files/files/vimud.pdfIn PDF document text
    • http://coopaac.com/assets/kcfinder/upload/files/munawomomi.pdfIn PDF document text
    • http://manilag.com/FileData/ckfinder/files/20220312_F4AE9D7367D77F92.pdfIn PDF document text
    • https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622d8e3b15a11---64526401467.pdfIn PDF document text
    • https://eastmanllc.net/ckfinder/userfiles/files/2368219898.pdfIn PDF document text
    • http://lycee-elm.com/userfiles/file/lofuzirud.pdfIn PDF document text
    • http://rejs2013.cycling-recycling.eu/imgturysta/files/gizasorikudelewaxizip.pdfIn PDF document text
    • https://semineebrasov.ro/printuri-fi/files/sorek.pdfIn PDF document text
    • http://birizgardenhotel.com/userfiles/file/xavadujusufukomup.pdfIn PDF document text
    • http://hiredriver.com/uploads/assets/files/4055471316.pdfIn PDF document text
    • https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/d7568348db06e49f06eb95b1102b2206/77794292944.pdfIn PDF document text
    • http://rcsiprojectracker.com/userfiles/files/57959777495.pdfIn PDF document text
    • http://ccsup.co.th/uploads/ckfinder/files/bozululajusavewuwibutok.pdfIn PDF document text
    • http://robwalker.net/fckupload/file/nikajilegapemukisamo.pdfIn PDF document text
    • http://xn--80aesyq.xn--p1acf/files/file/63937707317.pdfIn PDF document text
    • https://voctestbursa.org/editconsole/kcfinder/upload/files/wurojexitifab.pdfIn PDF document text
    • http://tuning-zone.eu/userfiles/file/12564642860.pdfIn PDF document text
    • http://apisicul.com/userfiles/files/nijepeniwinago.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_off0003a983.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A983 18448 bytes
SHA-256: 0eb0700b800094ed4dfd3baef3c257a828a739a93713fbff8f47f57b36e5a812
font_01_sfnt_off0003d906.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D906 10728 bytes
SHA-256: 8520ed3b21f2be34c2dca649360c998b383f530414326d1f8a3f5647f1a5a07b
font_02_sfnt_off0003f1b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F1B0 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9