Malicious PDF — malware analysis report

Static analysis result for SHA-256 72bd777a2e33a335…

MALICIOUS

PDF

81.4 KB Created: 2021-08-27 21:34:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 073132087823f9cf48c422f2d2ba971e SHA-1: bfeecb83582089d418f2c517a02c64f1d55fdfa1 SHA-256: 72bd777a2e33a3354db46d89f7f90980c4147feeece36d9830bc1258df434469
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9911

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
  • 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.
  • 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://crysiq.ru/uplcv?utm_term=pictures+starting+with+letter+a+to+z+pdf PDF link annotation
    • https://sanipro.ma/app/webroot/uploaderfiles/47904520166.pdfIn PDF document text
    • http://dgjst.com/upfile/file/95659991066.pdfIn PDF document text
    • http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16097caf270565---98073630249.pdfIn PDF document text
    • http://t-p-fortune.com/userfiles/file/jugaramekuvibamenatu.pdfIn PDF document text
    • http://nbkhjc.com/uploads/202108/file/210803075434771888wpukzhagj8mk.pdfIn PDF document text
    • https://drlanda.hu/user/file/redijipebol.pdfIn PDF document text
    • https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/f50651a362dcb766a5e977f086b86f03/mepuzosaw.pdfIn PDF document text
    • http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dfc110b5bb5---93310713112.pdfIn PDF document text
    • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0a75ae248e---75841962745.pdfIn PDF document text
    • https://www.emmabowman.com/wp-content/plugins/super-forms/uploads/php/files/b7099dcd3b1fbda38f33e5d72477144e/92049362519.pdfIn PDF document text
    • http://aiswaryamatrimonials.com/fck_uploads/file/wixixataguni.pdfIn PDF document text
    • https://elsa-daulte.com/ckfinder/userfiles/files/widiwudogekatudib.pdfIn PDF document text
    • https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078b4bd3fc35---bipikutizixebijositaf.pdfIn PDF document text
    • http://tekizolasyon.com/ckfinder/userfiles/files/fudenowexomedopipima.pdfIn PDF document text
    • http://www.injamal.es/nueva/ckfinder/userfiles/files/piranimovifivi.pdfIn PDF document text
    • https://bibliothequedesarts.ch/ckfinder/userfiles/files/50713305417.pdfIn PDF document text
    • https://areopag.ru/sites/default/files/uploads/98950349469.pdfIn PDF document text
    • https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/39481d18cf5b4b59e20f132d64344c37/75198291445.pdfIn PDF document text
    • http://unixsensor.com/uploads/files/202108220354081377.pdfIn PDF document text
    • https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/c67ebbe13d0a68137624a83223ceea1e/25855207339.pdfIn PDF document text
    • http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160b8b301707e9---84558968025.pdfIn PDF document text
    • https://www.servicioscalibrados.com/wp-content/plugins/super-forms/uploads/php/files/549f99a37210a64310664321b7c817e9/62087177077.pdfIn PDF document text
    • https://www.proctoloji.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b51ae29200---56630748351.pdfIn PDF document text
    • http://assytekservizi.com/userfiles/files/37492001616.pdfIn PDF document text
    • http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f4ad3df539---31605911513.pdfIn PDF document text
    • https://charterfori.ir/basefile/charterforiir/files/jepalujabisuwava.pdfIn PDF document text
    • http://cutskytools.com/d/files/feviwojowapigonatuviber.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_off0000d829.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD829 17548 bytes
SHA-256: fc220df0ea3623eb1bdf6b90d3c7b3e1afc9c7b774d20b6108fbc2ff10b24e36
font_01_sfnt_off0001059c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1059C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011db3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DB3 11144 bytes
SHA-256: 7073422efc6cecaabcc2bfa4d53f4b3253a9218ed35cdf4e687c5059ab594459