Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ad62ff1f964e8c2…

MALICIOUS

PDF

63.7 KB Created: 2021-09-04 22:09:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-23
MD5: 6ae93a2894054966598e714947431c8c SHA-1: 003abe95a3e9913461d1afabb65244884625c3cf SHA-256: 7ad62ff1f964e8c217ccc7ad476a6c371ede848d391c57c71898c42a711affd1
154 Risk Score

Malware Insights

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

The PDF contains numerous external links, many pointing to websites that appear to be hosting malicious content or are part of a link farm. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution. The file's structure and numerous links suggest it's designed to lure users to compromised or malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7390

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://huntic.ru/uplcv?utm_term=all+terminal+commands+linux+pdf PDF link annotation
    • https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608208ee5a12b---webevopatalutatosimimil.pdfIn PDF document text
    • http://childhood-matters.com/clients/49507/File/85565537488.pdfIn PDF document text
    • https://hrmconsulting.biz/upload/files/43425886764.pdfIn PDF document text
    • https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/3a5a4c81668071c47f3220f37f87579b/8698079161.pdfIn PDF document text
    • http://zentrumok.com/userfile/files/kigav.pdfIn PDF document text
    • http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609ecd4378492---modileregapo.pdfIn PDF document text
    • http://allasclub.com/campannas/file/motezil.pdfIn PDF document text
    • https://aquatim.ro/uploads/files/11861195933.pdfIn PDF document text
    • http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f58107ba93---15640734496.pdfIn PDF document text
    • https://cardion.dk/gfx/fckimages/file/74117428691.pdfIn PDF document text
    • https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16082540132e97---73589510615.pdfIn PDF document text
    • http://biometria.pl/photos_fck/file/tawafakizawemusalene.pdfIn PDF document text
    • https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081836f69347---13893234642.pdfIn PDF document text
    • https://emmaushuis.org/pages/99190402026.pdfIn PDF document text
    • https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606d903e4ddfc---47200760095.pdfIn PDF document text
    • http://ifaistos.reality.gr/~triantaf/images/file/4450268862.pdfIn PDF document text
    • http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/160a06b0bcd513---8567746899.pdfIn PDF document text
    • http://sms-dk.com/FileData/ckfinder/files/20210831_7ED5166101BACB85.pdfIn PDF document text
    • https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/0f45jvo2ea3u9i3u93kf8gnb1p/91154136704.pdfIn PDF document text
    • https://2ruoteexpo.it/ckfinder/userfiles/files/40327293546.pdfIn PDF document text
    • http://occahomesearch.com/userfiles/files/padejuxedimisi.pdfIn PDF document text
    • http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/161010c07a81d0---puruzitukamijovavigigovav.pdfIn PDF document text

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