Malicious PDF — malware analysis report

Static analysis result for SHA-256 72797f7226e37db9…

MALICIOUS

PDF

70.2 KB Created: 2021-08-03 10:46:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: de020ef37612df444f4b174a871265e4 SHA-1: 73149afba1876d526c945bea725bbfe10bb6f49f SHA-256: 72797f7226e37db90152f8b177a8bf2bbdfdf556a8b2ed2a8db70e4c8bfe9626
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is a PDF file flagged by multiple heuristics and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external URLs, many hosted on compromised WordPress sites or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics indicates a pattern of using PDFs to host links for SEO manipulation or to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8802

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://pixomot.ru/uplcv?utm_term=what+is+the+best+ship+in+star+trek+online PDF link annotation
    • http://fbhsclassof70.com/clients/f/f6/f6e65d48c6cf753e26882f86001d336b/File/74992553777.pdfIn PDF document text
    • https://law.myvzl.com/wp-content/plugins/super-forms/uploads/php/files/indht4sp5dvon10751vv898k9t/runumuxiwiw.pdfIn PDF document text
    • https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/d83ur4ndh7s78a269ooo7gatoc/7866728239.pdfIn PDF document text
    • http://daotaonhaccong.com/uploads/userfiles/file/zosotej.pdfIn PDF document text
    • https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/fm6u1albchcahukfda4fi5vjkm/bujevogixekexesoku.pdfIn PDF document text
    • http://activesolutionelectric.com/images/file/26195137973.pdfIn PDF document text
    • http://dui-antidote.net/images/userfiles/file/kutiremogomilas.pdfIn PDF document text
    • http://www.darvidproperty.com/news/file/84120115337.pdfIn PDF document text
    • http://plenaadoracao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609df313599de---gatolevosadepubivabexosi.pdfIn PDF document text
    • https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607830daeca1e---7141570369.pdfIn PDF document text
    • http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c02d28710fc---saxazuziwafipinibidikugi.pdfIn PDF document text
    • http://automsystem.com/UploadFile/file/20210608045941472.pdfIn PDF document text
    • http://zbraneklapka.cz/ckfinder/userfiles/files/34515493259.pdfIn PDF document text
    • http://www.associatedomains.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607370fd529b6---meseforuxivawamudolo.pdfIn PDF document text
    • http://hitecds.com/userfiles/file/laraned.pdfIn PDF document text
    • https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082997631b92---jexug.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a403a15fee1---16412833341.pdfIn PDF document text
    • http://lev-steklo.ru/userfiles/file/19369899284.pdfIn PDF document text
    • http://ildong.org/sa_upload/userfiles/file/20210721232509.pdfIn PDF document text
    • http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608c3b817283a---27175264733.pdfIn PDF document text
    • http://www.apsetedavisi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160793db18cd8d---gadufovewesulazamejabized.pdfIn PDF document text
    • http://www.communityheroesproject.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b73abdf27ba---wakaxazafiwuzera.pdfIn PDF document text
    • https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b93ff6ef131---kerozumuzejapufadas.pdfIn PDF document text
    • https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/powoxonaradodi.pdfIn PDF document text

Open this report in the interactive analyzer, or submit your own file for analysis.