Malicious PDF — malware analysis report

Static analysis result for SHA-256 95ed10ed82bc4ac3…

MALICIOUS

PDF

45.9 KB Created: 2021-07-15 15:14:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 98c7d5820defaad26068c0c17a190d87 SHA-1: ac1c5115a80ed57d821601dabf1aa3baa9de0460 SHA-256: 95ed10ed82bc4ac34123a5b988c327ffaa47e6e9ab186b5fdb7c1d7a8193af2d
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many of which point to compromised websites or link farms, as indicated by heuristics like PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM. The ML classifier and ClamAV detection further support its malicious nature. While no scripts were explicitly extracted, the structure suggests it's designed to redirect users to potentially malicious content, aligning with phishing or malware distribution tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7152

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.oasipizza.it/wp-content/plugins/formcraft/file-upload/server/content/files/16089cb370782c---14661738985.pdf In PDF document text
    • https://acronimocostanzo.com/userfiles/file/92077619182.pdfIn PDF document text
    • https://irepairplus.nl/app/webroot/files/userfiles/files/walul.pdfIn PDF document text
    • https://pousadamarazul.tur.br/wp-content/plugins/formcraft/file-upload/server/content/files/16080e430a56d0---4241813431.pdfIn PDF document text
    • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8b6671e67---zakejiwumajagututazexu.pdfIn PDF document text
    • https://1877painters.com/FCKeditor/file/31879279069.pdfIn PDF document text
    • http://piazzademarini3ge.com/userfiles/files/85683538685.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cfdd66d95f---rilogowezutulorowerod.pdfIn PDF document text
    • https://accounting789.com/ThImg/file/kulixusik.pdfIn PDF document text
    • http://kutyasturak.hu/images/files/50587339831.pdfIn PDF document text
    • https://rabudiagnostic.com/userfiles/files/bokijulakil.pdfIn PDF document text
    • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cc193a6d8b---12344759479.pdfIn PDF document text
    • http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a24f08e2a42---xofibozoxisi.pdfIn PDF document text
    • http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609aa77b2958c---rilozu.pdfIn PDF document text
    • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160efd27bb5e83---59739309257.pdfIn PDF document text
    • http://viettelhaiphong.me/data/dulieu/files/30145359477.pdfIn PDF document text
    • https://parfumzone.ro/files/file/xofod.pdfIn PDF document text
    • https://sdyh.gr/wp-content/plugins/super-forms/uploads/php/files/dia3kl5jdvjed1kj5j5i5om2d6/tizesigozavasedodafowixa.pdfIn PDF document text
    • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/434099fe725516e90b1bd0d2607a7af8/sijabejitilusu.pdfIn PDF document text
    • http://afghansolar.com/userfiles/file/16911684132.pdfIn PDF document text
    • https://indacphuc.com/wp-content/plugins/super-forms/uploads/php/files/5ct687ifa5apltfpflpm56u0ol/9209659227.pdfIn PDF document text
    • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b4afdb85247---wutufog.pdfIn PDF document text
    • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a433a02e42d.pdfIn PDF document text
    • http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084e6b33e3c7---saziletepififejulugoviv.pdfIn PDF document text
    • https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/p3gugqfonub77fn7h5u9bnlva7/galafezelujuramudoju.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=playboy+mansion+for+salePDF link annotation

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