Malicious PDF — malware analysis report

Static analysis result for SHA-256 af252371eee10a33…

MALICIOUS

PDF

288.4 KB Created: 2022-02-26 03:29:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 5923898213febd570e82e37861a22900 SHA-1: ac5e3b8f2e8eb24c9744f03285f1a249ea3e522e SHA-256: af252371eee10a33c776684b7cc362fdb50119c80838558caee468bc12b0d99c
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6854

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://lazav.co.za/XSRYdR1H?utm_term=aldeas+infantiles+sos+espa%C3%B1a+informacion PDF link annotation
    • http://uts.edu.co/portal/app/ckfinder/userfiles/files/58236143770.pdfIn PDF document text
    • https://rizecanreklam.com/images/file/76332084753.pdfIn PDF document text
    • http://tyextractor.com/d/files/gitakeruku.pdfIn PDF document text
    • https://akvanova.ru/sites/default/files/27058812323.pdfIn PDF document text
    • http://noithattamphuong.com/upload/files/kovorelesibuxurinimub.pdfIn PDF document text
    • https://kltccompany.com/ckfinder/userfiles/files/nabowaravekarup.pdfIn PDF document text
    • http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618487f018636---givabo.pdfIn PDF document text
    • http://kaies.cn/upfiles/file/rewopar.pdfIn PDF document text
    • https://profitaler.com/UserFiles/file/11051265088.pdfIn PDF document text
    • http://krakow4you.pl/krakow/files/31262752518.pdfIn PDF document text
    • http://www.pattyn360.com/upload/forum/files/55236945064.pdfIn PDF document text
    • https://wittnebel.dk/file/31542211383.pdfIn PDF document text
    • http://lulanjina.net/upload/files/1163405936.pdfIn PDF document text
    • http://gaudi.tw/upload/file/vaberujemupivesa.pdfIn PDF document text
    • http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/16206589b9a9ae---22936982912.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e97ae3dfb3---61675884939.pdfIn PDF document text
    • http://easternhoteljeju.com/FileData/ckfinder/files/20211010_5DD7A380EDB597BD.pdfIn PDF document text
    • http://choinka4x4.org/cms/files/file/kagutepusekudijusonogir.pdfIn PDF document text
    • https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f13de77dd7d---58610181454.pdfIn PDF document text
    • https://music-group-store.com/upload/files/sosewijox.pdfIn PDF document text
    • http://plymouth-logs.co.uk/ckfinder/userfiles/files/30187222936.pdfIn PDF document text
    • https://harmony.im/userfiles/file/19679551770.pdfIn PDF document text
    • https://eminenceconstruction.ca/viking1/uploads/files/87350186185.pdfIn PDF document text
    • https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132ca92428c7---zuzovubevajasijumozokene.pdfIn PDF document text
    • http://valleypainclinic.org/userfiles/file/28486034962.pdfIn PDF document text
    • https://www.mountainhawktrek.com/assets/kcfinder/upload/files/74349968238.pdfIn PDF document text
    • https://associazionebriciole.it/public/file/xofavotirutire.pdfIn PDF document text
    • http://skybuildinfraprojects.com/uploads/gewopezuwebot.pdfIn PDF document text
    • https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161af1a0c60610---togaxisaxerax.pdfIn PDF document text
    • http://suliaox.com/v15/Upload/file/202219049342162.pdfIn PDF document text
    • https://anaksemut.com/contents//files/regipasinoxagosakeveku.pdfIn PDF document text
    • http://sentidoseg.com/resources/original/file/vosolobewumawilumuworaj.pdfIn PDF document text
    • https://www.fondazionepolis.it/blog/ckeditor_fullcolor/kcfinder/upload/files/teteref.pdfIn PDF document text
    • http://cke.hk/userfiles/fizuluwo.pdfIn PDF document text
    • http://gillsandgeckos.com/userfiles/file/sezofo.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_off00040b02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40B02 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00042222.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42222 10968 bytes
SHA-256: 0f8846dcb4d80a0eba670ec7ed76942ee44cc65637aff7f920946510db1e4157
font_02_sfnt_off00043b50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43B50 19916 bytes
SHA-256: 34dbb0738da9039c444bda2574e86a8d910293aa6462fb04c886de7b80af4e98