Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c010267d6a667f2…

MALICIOUS

PDF

55.3 KB Created: 2021-09-02 20:19:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 7d1d976e73359d314a483478ca7f603b SHA-1: 2680bc6bb3fdb82c252378b2dc559c352c1d25a7 SHA-256: 0c010267d6a667f2018d115f35801b1af5091174f8c4ab3ff574ae45353263cd
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of external links, many of which point to compromised WordPress sites and disposable hosting. The ClamAV detection and ML classifier indicate malicious intent, likely for phishing or malware distribution. The embedded links suggest a link farm strategy to obscure the final malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5046

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://synerhu.ru/uplcv?utm_term=uad+fairchild+670+legacy+manual PDF link annotation
    • https://www.emmabowman.com/wp-content/plugins/super-forms/uploads/php/files/5b09e2238f05aed62155e44b6e082789/27245024567.pdfIn PDF document text
    • http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160a097dcd4ce0---93478691158.pdfIn PDF document text
    • http://saltokisport.com/uploads/files/33863106188.pdfIn PDF document text
    • http://adabaskimerkezi.com/upload/file/98188162619.pdfIn PDF document text
    • https://brianhigbielaw.com/UserFiles/file/fatujejuvuporuxusuvanefu.pdfIn PDF document text
    • https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/070690fb1ffbae5f9f0ea071d08ba9a8/64358997514.pdfIn PDF document text
    • https://lanna-flyingclub.com/ckfinder/userfiles/files/32393523531.pdfIn PDF document text
    • https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b0bba8c0bf0---kudafidemibifirevado.pdfIn PDF document text
    • http://aep-tc.com/cache/fck_files/file/lirezinogepojigubo.pdfIn PDF document text
    • http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607071a73f627---gojefuwapumoxasuk.pdfIn PDF document text
    • https://euroroma-bg.org/files/file/39722132862.pdfIn PDF document text
    • https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/8c5e65ec6d5170d14f072bc30c79a9fe/54598856497.pdfIn PDF document text
    • https://susta.vn/userfiles/file/72619665821.pdfIn PDF document text
    • http://eurogeographyjournal.eu/admin/fckfiles/file/gugawolibebojese.pdfIn PDF document text
    • http://coiffurenais.com/userfiles/file/3315150012.pdfIn PDF document text
    • http://xboxheerlen.nl/userfiles/file/dabakugug.pdfIn PDF document text
    • http://lubrifianti-auto.ro/files/file/9853698264.pdfIn PDF document text
    • https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/f6821hrt02bj6pttit5hjmht41/viwusaw.pdfIn PDF document text
    • http://bona-agra.pl/Upload/file/xuxerifutedubur.pdfIn PDF document text
    • http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/160929e389dda8---17684202714.pdfIn PDF document text
    • https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f87fa1176d9---jozigegisipogonurobivez.pdfIn PDF document text
    • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/k6i2tr5ld8sqvkr4beemf4nja3/14399056218.pdfIn PDF document text
    • http://billedbutikken.dk/articlefiles/file/lasalagawopexisusuwip.pdfIn PDF document text
    • http://przedszkolenisko.pl/userfiles/file/78329349805.pdfIn PDF document text

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