Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3ea72e694902dd…

MALICIOUS

PDF

386.0 KB Created: 2022-02-26 20:22:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: e3671c5e68e21f4dd56090a835f22735 SHA-1: 30b9635d8066d7fdb9a2d169d105bd506d1966e5 SHA-256: 0d3ea72e694902ddfdfc2d1aacaa03acb4a977cd385040870ad3edeb0e11927c
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains embedded JavaScript and multiple external URIs, including one pointing to a compromised WordPress upload storage. The heuristic 'PDF_SEO_UTM_REDIRECTOR_LINK' indicates the PDF uses an image lure to redirect users to a download page, a common phishing tactic. ClamAV also detected this file as 'Pdf.Phishing.Trojan-d2568dad23a94d95-10044375-0', further confirming its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6197

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://tevav.co.za/XSRYdR1H?utm_term=free+5th+grade+math+worksheets+place+value PDF link annotation
    • http://sibstroiexp.ru/userfiles/file/zodenalinatifufasituwu.pdfIn PDF document text
    • https://cardolf.ro/files/gubegezegepurefu.pdfIn PDF document text
    • http://parbatsamajjapan.com/img/files/files/66618620500.pdfIn PDF document text
    • http://k-ookuma.com/js/upload/files/13902449952.pdfIn PDF document text
    • http://naturallabs.fr/userfiles/file/64007677191.pdfIn PDF document text
    • http://upasamed.org/Content/uploads/files/gamutufedofizifoxidakim.pdfIn PDF document text
    • http://squarcialupirelaxinchianti.com/writable/public/userfiles/file/2333889707.pdfIn PDF document text
    • https://badeluxe.com/userfiles/files/fijibud.pdfIn PDF document text
    • http://www.northern-japan.com/image/upload/File/28799322385.pdfIn PDF document text
    • http://bwc.lt/i/49596454384.pdfIn PDF document text
    • https://eletvital.hu/uploads/files/deximaxibipeb.pdfIn PDF document text
    • https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/17216310653a79fe13fbd0104433f7de/29986060089.pdfIn PDF document text
    • https://sportnazona.bg/f/uploads/files/30240927878.pdfIn PDF document text
    • http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/161c761694300c---kanurite.pdfIn PDF document text
    • http://delve-cr.com/uploads/mabivulurubaxikop.pdfIn PDF document text
    • http://conblocmanado.com/pics/file/41230315993.pdfIn PDF document text
    • https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/160edb7ba5b450---sibivepavewopizinewem.pdfIn PDF document text
    • http://2446665a.ru/ckfinder/userfiles/files/13172055495.pdfIn PDF document text
    • https://trade.inter-ural.ru/ckfinder/userfiles/files/zinukixajujixita.pdfIn PDF document text
    • http://biancoacolori.it/userfiles/files/79061787762.pdfIn PDF document text
    • http://kidzcastleschool.com/singhania/downloads/file/28785725586.pdfIn PDF document text
    • http://batteryzone.pk/assets/kcfinder/upload/files/dofixumupodejepunenu.pdfIn PDF document text
    • http://reklama-opole.pl/userfiles/file/jukesoloxotin.pdfIn PDF document text
    • http://debsecond.net/UserFiles/File/31866911289.pdfIn PDF document text
    • https://heyratacademy.ir/file/14566267672.pdfIn PDF document text
    • https://heritagecambodiatravel.com/userfiles/file/saxubosefojesubuzom.pdfIn PDF document text
    • https://betoimobiliaria.com.br/admin/kcfinder/upload/files/sukew.pdfIn PDF document text
    • https://vatlieuxanh.vn/resources/uploads/files/pelexuvejuzetumotubises.pdfIn PDF document text
    • http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/koho113k1iuhv00j24vccrbmk1/kunoxumosapep.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_off00059768.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59768 18204 bytes
SHA-256: 66ea0ab2f842cf46b9d64546f549926e37d1c28e6d2fd9f4c1f198d0f17f4e32
font_01_sfnt_off0005c710.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C710 11220 bytes
SHA-256: 2a050ba1045b289ceb9915557bb2cddd200eb5d3767e33207db786391709ac57
font_02_sfnt_off0005e151.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E151 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9

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