Malicious PDF — malware analysis report

Static analysis result for SHA-256 afdb52cae764f700…

MALICIOUS

PDF

62.4 KB Created: 2021-09-01 02:20:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 7277caa1d402e9945a7acf69153fae82 SHA-1: 23d6944734138f8ac71caf903719cc3de0323580 SHA-256: afdb52cae764f700af634a867e5aea529d344bc41f01a03173f4480f580e8036
154 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The document contains a link farm pointing to numerous websites, many of which are hosted on compromised CMS upload storage or disposable hosting. These links are likely intended to direct users to phishing sites or download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9350

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://hpx.com.ua/wp-content/plugins/super-forms/uploads/php/files/b2abc469d511523586c976fa3ab8d226/80710171691.pdf In PDF document text
    • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cfb2a0bd532---58704835101.pdfIn PDF document text
    • https://www.idd.no/ckfinder/userfiles/files/fatafuguviwokajofigemij.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/rb0vvqoh9ge9lrjiua07nag3e7/matubafovu.pdfIn PDF document text
    • http://topup-fight.com/ckfinder/userfiles/files/paraviwuwifajubat.pdfIn PDF document text
    • http://edu-family72.ru/content/images/uploads/file/60216526051.pdfIn PDF document text
    • http://fritz-fahrlaender.ch/download/sumumo.pdfIn PDF document text
    • https://www.wflorlando.com/wp-content/plugins/super-forms/uploads/php/files/f5f4d2d7a11877f346857b86e1fe626f/femaxalonobavakopixuzoj.pdfIn PDF document text
    • https://aartipalette.com/userfiles/file/71635779059.pdfIn PDF document text
    • https://bibliothequedesarts.ch/ckfinder/userfiles/files/wunixibivugategifu.pdfIn PDF document text
    • https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160762057b248e---zaridesotab.pdfIn PDF document text
    • http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d2bf273700---babufutuj.pdfIn PDF document text
    • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f0e3d8ae79---56166280588.pdfIn PDF document text
    • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a84c162aaed---63729996560.pdfIn PDF document text
    • http://crosswaysrecruitment.com/userfiles/file/12462435096.pdfIn PDF document text
    • http://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609350ef25a0b---75795309853.pdfIn PDF document text
    • http://naturallabs.fr/userfiles/file/23026138836.pdfIn PDF document text
    • http://jun-travel.com/userfiles/file/nejama.pdfIn PDF document text
    • http://studioego.cz/userfiles/file/rakopifu.pdfIn PDF document text
    • http://zhxndl.com/uploadfiles/files/jomixoboladikugosikus.pdfIn PDF document text
    • http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/cfd6b7b1221bd61d7288081658915e48/votumiluguw.pdfIn PDF document text
    • https://aymsoft.us/aym_image/files/17971253489.pdfIn PDF document text
    • https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/1610fd420ee7bb---14792074828.pdfIn PDF document text
    • http://falls67.com/clients/50406/File/9135556879.pdfIn PDF document text
    • http://heatexchangersolution.com/upload_fck/file/2021-8-11/20210811130142980786.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=the+largest+cruise+shipPDF link annotation

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