Malicious PDF — malware analysis report

Static analysis result for SHA-256 de69967112e1c39c…

MALICIOUS

PDF

48.9 KB Created: 2021-08-07 14:46:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 4c5005cb16fd5a9a3a7ac7a011061e33 SHA-1: b95845910ed26386cc364efe37ae9c214c492ecc SHA-256: de69967112e1c39c09ca9999a794d46b1814d6ea0a52bd30e51360229e317184
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links, many of which point to compromised WordPress sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to lure users to phishing or malware distribution sites. The document body is heavily obfuscated and unreadable, providing no direct clues to its purpose beyond what the heuristics reveal.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9066

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://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c19ae0040b4---lolirabadevadolupupi.pdf In PDF document text
    • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e372f969f86---7434347423.pdfIn PDF document text
    • http://www.heksan.com.pl/file/nufodabotivaperuxidazug.pdfIn PDF document text
    • http://scoutpate.com/userfiles/file/lubowij.pdfIn PDF document text
    • http://didula.com/img/file/kavovawewe.pdfIn PDF document text
    • https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d3ae5be043e---18270877712.pdfIn PDF document text
    • http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098886c15c97---bufitumuba.pdfIn PDF document text
    • https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/6cfvkbdstvhf94etg6fmsmrfs1/31713386884.pdfIn PDF document text
    • http://zhhyhb.com/uploadfiles/files/67076909465.pdfIn PDF document text
    • http://healhumanity.foundation/userfiles/file/83017490552.pdfIn PDF document text
    • https://oncetrabzon.com/resimler/files/lirasopomuperijasovimoki.pdfIn PDF document text
    • https://sancarspune.com/wp-content/plugins/super-forms/uploads/php/files/2b039d5569d1fb70693a7600c216461b/zexobofawowibowuniwil.pdfIn PDF document text
    • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609c2ea18bddf---1005968760.pdfIn PDF document text
    • https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160748b019e88e---xarixoxefazejupaf.pdfIn PDF document text
    • https://ip-kamera-rendszer.hu/ckfinder/userfiles/files/vadude.pdfIn PDF document text
    • http://lovemyskindayspa.com/clients/d/d9/d99ed7cf7cbac978b7326c22a81d1608/File/73538174078.pdfIn PDF document text
    • http://longearedhounds.com/clients/65743/File/11079194848.pdfIn PDF document text
    • https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160819d4ce9909---kiwuf.pdfIn PDF document text
    • https://mygamedaysports.com/wp-content/plugins/super-forms/uploads/php/files/40b32e8ee4830810196346a0683c669e/sutulizewamegumidok.pdfIn PDF document text
    • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/ijr6hr09g90ap240sa8m4qhmn6/pajezagokik.pdfIn PDF document text
    • http://avandcie-energy.com/ckfinder/userfiles/files/lutix.pdfIn PDF document text
    • http://xn--80aafmoni2biho.xn--p1ai/admin/ckfinder/userfiles/files/13614203731.pdfIn PDF document text
    • http://omg.su/upload/File/18394296958.pdfIn PDF document text
    • http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e92c1248dc6---54772386051.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=how+to+attract+money+joseph+murphy+pdfPDF link annotation

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