Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa7d60d46fb52544…

MALICIOUS

PDF

47.4 KB Created: 2021-09-30 12:10:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-21
MD5: 009309f277e5620e4b74858a09745097 SHA-1: 68f0e1e1c96a6be7878989a0dc5340c307d836a0 SHA-256: aa7d60d46fb5254458b6111852618ec4983a31018c648cd095e172577e2222b9
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or other potentially malicious hosting. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware delivery through these links. The file's structure as a link farm suggests an attempt to obscure the ultimate destination and evade detection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7332

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 http://iraneto.com/basefile/iranetocom/files/56991323017.pdf In PDF document text
    • http://www.prctech-th.com/ckfinder/userfiles/files/joziwumexawudapami.pdfIn PDF document text
    • http://goldmustang.ru/files/files/kirilu.pdfIn PDF document text
    • https://dalton-english.com/userfiles/file/37273060651.pdfIn PDF document text
    • http://crystalnymph.by/wp-content/plugins/super-forms/uploads/php/files/6d4516be9aef14dfa8e73687ec129d89/61886044953.pdfIn PDF document text
    • https://segurosjdd.com/wp-content/plugins/super-forms/uploads/php/files/lqmrkispbjqo0inascf8vblru3/medegavivaxezulunojezumi.pdfIn PDF document text
    • https://artcorner-fiberglass.com/userfiles/files/xomabufagupiw.pdfIn PDF document text
    • https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/161433aae9b074---miroserewew.pdfIn PDF document text
    • https://broadcasthub.com/ci/userfiles/files/82381251655.pdfIn PDF document text
    • https://viettincapital.vn/upload/files/wubiramubelejuveliwip.pdfIn PDF document text
    • https://mlbcsimleague.com/ckfinder/userfiles/files/zabojipiloji.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161507355d7a22---gupigigogaxupovosojix.pdfIn PDF document text
    • http://zekejozsef.eu/FCKfeltoltott/file/46341556993.pdfIn PDF document text
    • http://foodchemsino.com/d/files/zamapoduwijitipa.pdfIn PDF document text
    • http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/1614827ec28ece---lonoxewaduzanojizu.pdfIn PDF document text
    • https://www.aaptuk.org/ckfinder/userfiles/files/34705362011.pdfIn PDF document text
    • http://zamokugrofa.sk/admin/fckeditor/file/4377921699.pdfIn PDF document text
    • https://eletmodguru.hu/files/files/semijoxigesobimanavux.pdfIn PDF document text
    • https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/130c06af3634932ddbe4193f71dc7418/bijokajix.pdfIn PDF document text
    • https://adeptos.clevercloud.pt/images/items/files/xajekogek.pdfIn PDF document text
    • http://argol-editions.fr/userfiles/file/79163687574.pdfIn PDF document text
    • http://manchetenewsms.com.br/ckfinder/userfiles/files/zugafubupukubup.pdfIn PDF document text
    • https://www.acta-mobilier.fr/ckfinder/userfiles/files/fidabim.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=microsoft+powerpoint+crack+downloadPDF link annotation

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