Malicious PDF — malware analysis report

Static analysis result for SHA-256 9001ebcc10e0898d…

MALICIOUS

PDF

54.4 KB Created: 2021-06-29 03:44:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: bfcd358222ebd2c146be2501520a001d SHA-1: eb5db53577fba64b36bccbd2f6dc1bd47283b326 SHA-256: 9001ebcc10e0898d9697168f809057a153f8f7d752929d285d32d284c0fcc01e
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs pointing to various domains, many of which appear to be associated with compromised CMS uploads or disposable hosting. The ClamAV detection and ML classifier strongly indicate malicious intent, likely to redirect users to phishing sites or download further malware. No scripts were extracted from this sample, but the link farm structure is a common tactic for distributing malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6438

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://koreanhotpot.com/uploads/files/nitejifavadizemizonikiri.pdf In PDF document text
    • http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16077866e2e554---52296684909.pdfIn PDF document text
    • http://curry-box-deluxe.de/userfiles/file/55117692070.pdfIn PDF document text
    • http://rufullthrottle.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607eaefb091d2---4874591222.pdfIn PDF document text
    • https://www.ogblfrontaliers.fr/wp-content/plugins/super-forms/uploads/php/files/djet08nu1ji6mi58qn8fuqo9bh/40633543620.pdfIn PDF document text
    • http://mooneyes.pl/userfiles/file/baloxidepimuzutexemosewe.pdfIn PDF document text
    • http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/ofe22c39kfbs82v58g9029lua5/85596821258.pdfIn PDF document text
    • http://delawaretravelmedicine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077529acdd97---19447412945.pdfIn PDF document text
    • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/ro7guu5p8i2p22t6mac8ml7lvd/91647448616.pdfIn PDF document text
    • https://www.ideakliniksisli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609faa2206d44---mufozajexokimodawila.pdfIn PDF document text
    • http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ed3ea6f246---xipomopibisan.pdfIn PDF document text
    • http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608a731415039---39582767816.pdfIn PDF document text
    • http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/51598a607215ce84c6bc137ecc0846b8/16182039067.pdfIn PDF document text
    • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf016c9ab73---tavevatu.pdfIn PDF document text
    • https://daleel.global/wp-content/plugins/super-forms/uploads/php/files/o48cig60id55iudod7g2enacrh/33522790211.pdfIn PDF document text
    • http://careerdynamic.com/clients/3/3d/3d9dba0a3645e5854abf1db7654b9c86/File/46141848383.pdfIn PDF document text
    • https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160d280d555003---zanogibimeduminutokel.pdfIn PDF document text
    • https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/cee1da8027a775bde42d01ab94fbe31f/babubaso.pdfIn PDF document text
    • https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7355cc3532---kugubopigu.pdfIn PDF document text
    • http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/7e5bb5399a11d8074b58876f1ae3d48f/koxorurabewepafasekon.pdfIn PDF document text
    • https://amirep.com/wp-content/plugins/super-forms/uploads/php/files/5ccb6a811cd5829e4303549b1922dc9d/43401634626.pdfIn PDF document text
    • http://alliance-ltd.com/userfiles/574901999.pdfIn PDF document text
    • http://chapelguild.com/images/usr/bekapedep.pdfIn PDF document text
    • https://razdolle.by/wp-content/plugins/super-forms/uploads/php/files/p8l5ktlch2cjs4c4h74sbcla51/tuluzejoxosebo.pdfIn PDF document text
    • http://castrolmintabolt.hu/images/upload/file/gegaforoki.pdfIn PDF document text
    • https://mfdesign.hu/files/file/pozob.pdfIn PDF document text
    • http://bscsaoner.in/ckfinder/userfiles/files/subukat.pdfIn PDF document text
    • https://expresstestingatl.com/wp-content/plugins/super-forms/uploads/php/files/309bcda4986a6144ffd90c1d0d6c73cd/saxozinobaj.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=post+traumatic+stress+syndrome+icd+10PDF link annotation