Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ed9a948b62930ae…

MALICIOUS

PDF

61.6 KB Created: 2021-06-26 06:10:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 9820a65da48389cdd3058c6d0d25ab06 SHA-1: a3db49df0736fb6d9c77cbdbd8345305c1829340 SHA-256: 3ed9a948b62930ae0822c9657b47316ddee6aab67f6c1d91732b246fe3987f24
124 Risk Score

Malware Insights

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

The file was detected by ClamAV as Pdf.Phishing.Trojan. It contains a link farm with numerous URLs pointing to compromised WordPress sites and disposable domains, indicating a phishing or malware distribution attempt. The presence of external URIs and link farm characteristics strongly suggests malicious intent.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4855

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 http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1609a026cf3061---xujeres.pdf In PDF document text
    • http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609071a5b3f08---9241664968.pdfIn PDF document text
    • http://murphysbeads.com/clients/54316/File/61179561699.pdfIn PDF document text
    • http://polloricowings.com/uploads/files/15725097006.pdfIn PDF document text
    • http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160770a9cf4006---24012933166.pdfIn PDF document text
    • http://tlxzkj.com/uploads/file/161130272860.pdfIn PDF document text
    • https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081ca17c326d---18715069726.pdfIn PDF document text
    • http://toyotarent.kr/FileData/ckfinder/files/20210529_DF909BEF56CB7A43.pdfIn PDF document text
    • http://jyjwqj.com/uploadfile/file///2021060106255882.pdfIn PDF document text
    • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/1607678bb9055e---38168125331.pdfIn PDF document text
    • https://almoheetmanpower.com/public_html/userfiles/file/8649944009.pdfIn PDF document text
    • http://champaigncursillo.com/userfiles/file/10972791413.pdfIn PDF document text
    • http://ackerviewguesthouse.com/userfiles/file/nidabatuwulat.pdfIn PDF document text
    • http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/16071d2947107e---15712816062.pdfIn PDF document text
    • https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/900d17096c86182e78215e98428d7005/85488193137.pdfIn PDF document text
    • http://caphegiabao.com/upload/fck/file/66490399393.pdfIn PDF document text
    • http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/a94fa05c6e562e5c91838d653948f9c5/bekekigavo.pdfIn PDF document text
    • https://cremyco.com/app/webroot/docs/file/88863573644.pdfIn PDF document text
    • https://kme.pl/global/app/webroot/uploads/file/16240721993612.pdfIn PDF document text
    • https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609993f92ebb8---92913910501.pdfIn PDF document text
    • https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/durhj9vg8tp4to7g03t3ledao3/pinoviwudebalax.pdfIn PDF document text
    • https://readxyz.com/wp-content/plugins/super-forms/uploads/php/files/cbac15a90dcff7ba750be1618b9bb8f1/nenigivujeleredir.pdfIn PDF document text
    • https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/dp1hr37v82dipseodtd70iq88t/mirubusezozeridu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=quadrilaterals+coloring+activity+answers+pdfPDF link annotation

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