Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b43ca0335623c5…

MALICIOUS

PDF

75.4 KB Created: 2021-10-12 05:18:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 3cc2f2f179c6d8e3e26fe9d8b779844a SHA-1: dea566705c88b421a697b16a8fac7ca5c68847fe SHA-256: 72b43ca0335623c510c7c572b67f8f86844473961475ff9f66b748130b670fd6
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://mobile-translator.eu/app/webroot/media/files/mekunemisimirevor.pdf In PDF document text
    • https://equalitas.es/userfiles/file/4449306288.pdfIn PDF document text
    • https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/161476e77b3f9c---48320240911.pdfIn PDF document text
    • http://magnumprint.ru/upload/files/nizanefelekosazokiki.pdfIn PDF document text
    • https://howardsteeves.com/wp-content/plugins/super-forms/uploads/php/files/18e5d4ab69c27008140c6564808dac5e/jedolazosego.pdfIn PDF document text
    • http://kurumakaitori-one.com/js/upload/files/22870117433.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141dd425fbda---ladenu.pdfIn PDF document text
    • http://fszhenjia.com/upfolder/e/files/20210919030217.pdfIn PDF document text
    • http://snsi.jp/image/news_file/37962353759.pdfIn PDF document text
    • http://odontotecnicacoop.it/userfiles/file/kewegarafobes.pdfIn PDF document text
    • https://khambenhxahoi115.com/images/files/65457799988.pdfIn PDF document text
    • http://goteneplast.se/files/images/file/rokelopupakezodinizopol.pdfIn PDF document text
    • https://csn-alliance.com/data/files/zerisube.pdfIn PDF document text
    • http://ride-on-earth.com/images/blog/file/91847738090.pdfIn PDF document text
    • http://kraciowka.pl/userfiles/file/75014366870.pdfIn PDF document text
    • http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/16158bb606e0b9---84458240176.pdfIn PDF document text
    • https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614e21f6023ab---91222987818.pdfIn PDF document text
    • http://moretonassets.net/userfiles/20753366682.pdfIn PDF document text
    • https://interference.ajoda.eu/userfiles/files/waxajuzuzatiji.pdfIn PDF document text
    • https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143eb62464dd---64918856023.pdfIn PDF document text
    • http://rudolphalexander.com/uploads/files/wujutunufivezex.pdfIn PDF document text
    • http://enricobarraco.com/files/65393271032.pdfIn PDF document text
    • http://dsfly.com/uploads/files/tovunar.pdfIn PDF document text
    • https://successstudio.net/userfiles/file/safaloti.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/23D8k0Ec_6w/uplcv?utm_term=solutions+for+all+english+home+language+grade+9+core+reader+teacher%27s+guidePDF link annotation
    • 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_off0000beee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEEE 17904 bytes
SHA-256: 3d6c6e03c2c29784d2e176746a772f430db515576fce047c9e7236451a9c41cb
font_01_sfnt_off0000ed27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED27 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001053e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1053E 11300 bytes
SHA-256: 1fe8a598aefa393cddadd5706f27ba86fd0f1f5c18c62a3bc03b84c043dda25e