Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ce34e14e550e266…

MALICIOUS

PDF

72.1 KB Created: 2021-09-02 13:18:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: a9b4fc0e656e68c5783840e2ca25f176 SHA-1: 7066e7ad946d1f09cd947c85852f16b2d3c580b2 SHA-256: 9ce34e14e550e26663650d75f471ee0f3f32f7dd03ead967fc657de34f6228bc
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous links to external websites, many of which appear to be compromised WordPress installations or disposable hosting, suggesting a phishing or link-farming operation. The embedded URLs are designed to trick users into downloading further malicious content or visiting phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8398

Heuristics 5

  • 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
  • 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://krisoc.ru/uplcv?utm_term=student+cv+template+south+africa+pdf PDF link annotation
    • https://armagedonspedycja.pl/files/file/39968967615.pdfIn PDF document text
    • https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/1609beb1cd94d9---zatelizuzavese.pdfIn PDF document text
    • https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/1608076726ddb2---68654743569.pdfIn PDF document text
    • https://prosegik.com/wp-content/plugins/super-forms/uploads/php/files/053d4792f442fdb49ac845f947da50aa/84592485616.pdfIn PDF document text
    • http://savalis.ru/userfiles/file/rabizoragavatutifinimi.pdfIn PDF document text
    • https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/bb87ab99a64244c3498061bf148f7541/68341937651.pdfIn PDF document text
    • https://mszukam.pl/dat//file/62011061969.pdfIn PDF document text
    • http://e-park.es/img/uploads/files/moveroresari.pdfIn PDF document text
    • http://curry-box-deluxe.de/userfiles/file/16626714819.pdfIn PDF document text
    • http://studioscoponi.eu/userfiles/files/biduturolusaneni.pdfIn PDF document text
    • http://pizzeriadevita.it/userfiles/files/62095313629.pdfIn PDF document text
    • http://seoulsquare.com/userfiles/file/gabiledosutolasuvovi.pdfIn PDF document text
    • https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/8ubrfga95na3ajk5m51hm1dc16/44247131603.pdfIn PDF document text
    • https://stdtekstil.com/upload/ckfinder/files/fanogutajona.pdfIn PDF document text
    • http://synergyproperty.com/images/files/46471879651.pdfIn PDF document text
    • http://twozonechickenlasvegas.com/uploads/files/48098811892.pdfIn PDF document text
    • https://takipbizde.com/calisma2/files/uploads/volosumepizebelelete.pdfIn PDF document text
    • http://pogologistics.com/ckfinder/userfiles/files/39425290708.pdfIn PDF document text
    • http://longchimvac.net/app/webroot/uploads/files/nizenuripolawonujapatawa.pdfIn PDF document text
    • https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f5c3e9f6a2---40599119131.pdfIn PDF document text
    • http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca7d14b9a7---38369413522.pdfIn PDF document text
    • http://litho-and-co.fr/ckeditor/upload/files/denefowobuvijabof.pdfIn PDF document text
    • http://spadhotel.com/basefile/spadhotelcom/files/lalubuxikofesu.pdfIn PDF document text
    • http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609285e5c4435---vutagimi.pdfIn PDF document text
    • http://salonorganica.ru/upload/files/xezekubebuxelewu.pdfIn PDF document text
    • https://fatheragneliti.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c60b93411b8---ginemosojowumogizuforufis.pdfIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e8d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8D7 18256 bytes
SHA-256: a720da797f8344a1ca79d6a6aa724a4d6734c2e068af279b071901ef3b5f4158

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