Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0b2d967951b0a3c…

MALICIOUS

PDF

67.1 KB Created: 2021-09-04 02:15:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: ff73956017fe4021fac134f8aa8dfb1e SHA-1: 5c1316375584b38226510d9d7c1970a70d6b513e SHA-256: c0b2d967951b0a3c784b71980308ff3a1dab5265c4d7a9ccb6f3bbb345b500e4
124 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to compromised CMS upload directories. The ClamAV detection 'Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0' strongly suggests a phishing or trojan distribution intent. The embedded links are designed to lure users to malicious sites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4419

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/042485bc833c0c2b64ae71ecd60366c4/90787776173.pdf In PDF document text
    • https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/78g810g3ncogmcp40bma3v94i1/61113790833.pdfIn PDF document text
    • http://homelife-superstars.com/image/files/gifezatinizu.pdfIn PDF document text
    • https://kebecelectrique.com/upload/editor/file/tidituwitokukasedugew.pdfIn PDF document text
    • https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/160ab0d43b2984---dipozamobasamokidagitu.pdfIn PDF document text
    • http://tecs4.com/intranet/ckfinder/userfiles/files/88265098686.pdfIn PDF document text
    • https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c157e2e9ec3---jepagekudofejifizosem.pdfIn PDF document text
    • http://www.lifestaralberta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c915f20eec---paneleperu.pdfIn PDF document text
    • http://chromavials.com/d/files/29470096163.pdfIn PDF document text
    • https://pypconsultores.mx/userfiles/file/33477053778.pdfIn PDF document text
    • http://bona-agra.pl/Upload/file/36046302744.pdfIn PDF document text
    • http://ain.proximeo.com/ckfinder/userfiles/files/39482926522.pdfIn PDF document text
    • https://bechtoldpaving.com/wp-content/plugins/super-forms/uploads/php/files/835528e3f7bbc782b42547343a1c0b35/86341588495.pdfIn PDF document text
    • http://citygclub.com/ckupload/files/gowanazulideduta.pdfIn PDF document text
    • https://ngusacdon.com/upload/files/69768109842.pdfIn PDF document text
    • https://discovercefalu.it/_data/images/file/forubusebosuxaxudu.pdfIn PDF document text
    • http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608a2ee8d5c51---kedajigokabot.pdfIn PDF document text
    • http://creatinglifeoptions.com/userfiles/files/pigoforewowamumikavon.pdfIn PDF document text
    • http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1a650d3d8f---83637740662.pdfIn PDF document text
    • http://dominoliberec.eu/images/file/files/demizuvegudeluzozo.pdfIn PDF document text
    • https://www.analfissur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160813a6f4c1e7---jababufovexizikuge.pdfIn PDF document text
    • https://utilitydiscount.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085a22d4ef98---51892060658.pdfIn PDF document text
    • https://bayihoki99.com/contents//files/77153856804.pdfIn PDF document text
    • http://treeoflifetolfu.com/clients/0/07/07f122ebb3396bb3f917f2e62af81596/File/52957934264.pdfIn PDF document text
    • http://shriadinathbank.com/uploads/58486365714.pdfIn PDF document text
    • https://dalton-english.com/userfiles/file/77842385980.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=tuberculosis+en+mexico+2019+pdfPDF link annotation

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