Malicious PDF — malware analysis report

Static analysis result for SHA-256 e27d0552cc477e14…

MALICIOUS

PDF

58.2 KB Created: 2021-10-05 02:51:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-20
MD5: c765b9329cda0c904a820cb6c144e5a5 SHA-1: 2d339f7b25bbf782f24bf4279c47d6e72043c1d7 SHA-256: e27d0552cc477e146700037d9cb7f63bd37eacda86e8070a0b060670d71b734b
124 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV with a 'Pdf.Phishing.Trojan' signature. Static analysis revealed it functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites and disposable domains. These links are likely intended to lure users into phishing scams or download further malicious content.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3485

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://garglob.ru/uplcv?utm_term=area+of+a+10+foot+circle PDF link annotation
    • http://seto.cz/uploads/97352086105.pdfIn PDF document text
    • http://abwrva.com/uploads/files/63242116658.pdfIn PDF document text
    • http://shanghaicruiseparty.com/uploads/file/56599721411.pdfIn PDF document text
    • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615ac810884ac---vebasalisevu.pdfIn PDF document text
    • http://sjar-tech.com/uploadfile/file///2021090504123112.pdfIn PDF document text
    • http://donleroy.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/jitikiwetifijaxi.pdfIn PDF document text
    • http://jedzenie365.pl/ckfinder/userfiles/files/gokoxubivomegepoviga.pdfIn PDF document text
    • http://esistore.be/userfiles/file/69087607496.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135bac2f3d33---gexilanatosusitewedeto.pdfIn PDF document text
    • https://crownprolaw.com/userfiles/Proj_Name/files/megito.pdfIn PDF document text
    • https://www.colline-eternelle.com/ckfinder/userfiles/files/badoxuxetimizifo.pdfIn PDF document text
    • https://filetorme.com/upload/files/26105560610.pdfIn PDF document text
    • http://dorrstrechy.cz/UserFiles/File/minimalarevulal.pdfIn PDF document text
    • https://ezsprinting.com/userfiles/file/34638713598.pdfIn PDF document text
    • http://isystem.hu/userfiles/file/wofesikudadusov.pdfIn PDF document text
    • http://gayaarchi.com/userfiles/file/20210910083713.pdfIn PDF document text
    • http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614d70ca8a3b7---42037352265.pdfIn PDF document text
    • http://merlegdoktor.hu/tmp/kutexarepibivuni.pdfIn PDF document text
    • https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/161590988c43b5---xejadegedafite.pdfIn PDF document text
    • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615aedec7fc38---pipunavinafoxelejojuvunez.pdfIn PDF document text
    • https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/43abfea9df16cc49ed69bb21b5751fc9/gisikiwagek.pdfIn PDF document text
    • http://lacasedescaraibes.fr/file/bokujifu.pdfIn PDF document text
    • https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/lk7e5clsqbp7j5i50fmqt2pptc/rofuzajijokiwomugupubuvib.pdfIn PDF document text
    • https://m-astar.com/UserFiles/files/nijimubiga.pdfIn PDF document text
    • http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/raut3a1kd7ql0ld1cs3f60t751/93217957599.pdfIn PDF document text
    • http://soles2walk.com/data/file/sogawemupedefemilow.pdfIn PDF document text

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