Malicious PDF — malware analysis report

Static analysis result for SHA-256 237c717404a4cf06…

MALICIOUS

PDF

107.1 KB Created: 2021-09-20 07:09:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 1da01e9dc611516310f4e1ad2557f86d SHA-1: abca22bf7a94ab4af5326ecada71977792a372c6 SHA-256: 237c717404a4cf06a2e588eaa0f6725f9674e4fd4bff8504daff2063fee71636
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF document that contains numerous links to external websites, many of which are hosted on compromised CMS uploads or disposable domains. The ClamAV detection and ML classifier indicate malicious intent, likely for phishing or distributing further malware. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6574

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://textingrights.com/userfiles/files/90531660315.pdf In PDF document text
    • https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/161430c10add5f---befibaxalosidujupamojotuw.pdfIn PDF document text
    • https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fb592316c6---rafobipezidurani.pdfIn PDF document text
    • http://zabbeleecooking.com/ckfinder/userfiles/files/tezijigegorumakidul.pdfIn PDF document text
    • https://www.agencesramos.com/ckfinder/userfiles/files/voduja.pdfIn PDF document text
    • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/161409252d85de---kipibovefopularexigene.pdfIn PDF document text
    • http://vangphutai.com/images/uploads/files/zedimigifovukomipigotuvo.pdfIn PDF document text
    • http://szentistvanpatika.hu/upload/file/87593017226.pdfIn PDF document text
    • https://voziky-paletove.cz/mctree.cz/pictures/other/files/36344750711.pdfIn PDF document text
    • https://yesilkoyluleriz.biz/resimler/files/bumajovumokekatopevozi.pdfIn PDF document text
    • http://aptekainternetowa.net/_mdm_apteki/file/jajaruwokusefo.pdfIn PDF document text
    • https://snf.styleguides.ch/userfiles/files/nuzujidozidiporiwemi.pdfIn PDF document text
    • https://xyoaa.org/sites/default/files/files/98966751484.pdfIn PDF document text
    • http://sswjeans.com/files/51093557128.pdfIn PDF document text
    • http://koreaseals.com/ckfinder/userfiles/files/bovoxedozunowokutaj.pdfIn PDF document text
    • http://pure-chiral.com/upload/files/zonejabepenum.pdfIn PDF document text
    • https://aildf.in/userfiles/file/zadapokewobivitaluton.pdfIn PDF document text
    • https://esterkins.de/ckfinder/userfiles/files/54820440763.pdfIn PDF document text
    • https://tomaszbizon.pl/web/uploads/files/jijusakibidabavalonijofoj.pdfIn PDF document text
    • https://sportsslife.net/upload/ckfinder/files/linagakere.pdfIn PDF document text
    • http://arcstema.com/userfiles/files/67514193837.pdfIn PDF document text
    • https://sokole-tps.pl/userfiles/file/vexixefurafufukatare.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=windows+update+ssdPDF link annotation

Open this report in the interactive analyzer, or submit your own file for analysis.