Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fd025f3f6357f05…

MALICIOUS

PDF

56.7 KB Created: 2021-09-08 17:46:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: 81b4e7d0b28ef5bca4ad4b40bb0c86e0 SHA-1: 1ca4ffb2196a3184f9170770dac4d55b10d77111 SHA-256: 0fd025f3f6357f0552bc2fdfe57ddee2153750c32d021c2c221465686ab30a62
154 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It functions as a link farm, containing numerous URLs that point to potentially compromised websites or disposable hosting, designed to lure users into clicking malicious links. The presence of multiple 'link farm' heuristics and the nature of the extracted URLs strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5046

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://yourmoneyyourbank.com/uploads/File/vorijetemosifadesoded.pdf In PDF document text
    • http://kantoromega.pl/userfiles/file/85018111176.pdfIn PDF document text
    • http://sakulchaiplace.com/Uploads/file/jedogibimaposoden.pdfIn PDF document text
    • https://tidurmalam.com/contents/files/47654070375.pdfIn PDF document text
    • https://netcsemege.hu/ckfinder/userfiles/files/5607595349.pdfIn PDF document text
    • https://kibledergisi.net/resimler/files/93837801849.pdfIn PDF document text
    • https://mallncart.com/userfiles/files/57548813784.pdfIn PDF document text
    • https://deepex.hu/hirek/files/46981596901.pdfIn PDF document text
    • http://broadgatecapital.com/userfiles/file/33274215225.pdfIn PDF document text
    • http://alpes-de-haute-provence.proximeo.com/ckfinder/userfiles/files/kadipazexuxanuwizexow.pdfIn PDF document text
    • http://studiogeologicotrilobite.com/userfiles/files/38777447738.pdfIn PDF document text
    • https://a1-recruitment.fr/v2011/Files/fck_upload/file/2962479911.pdfIn PDF document text
    • http://maketmaster.ru/admin/ckfinder/userfiles/files/viregubafoxopomuzupuxufo.pdfIn PDF document text
    • https://www.syah.org/wp-content/plugins/super-forms/uploads/php/files/28c337b123ceb746fa307f0d30087ac4/jezonaxeb.pdfIn PDF document text
    • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132d66668b7e---fogirizosuwe.pdfIn PDF document text
    • http://okvin.org/userfiles/file/wowop.pdfIn PDF document text
    • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613111fcc0844---putufojolomalapinebenoti.pdfIn PDF document text
    • http://sro52.ru/uploads/files/63649141141.pdfIn PDF document text
    • https://orsam.org.tr/paketler/ckfinder/dosyalar/files/15261233273.pdfIn PDF document text
    • http://ginzaramen.us/uploads/files/vuxupulijagofomejatimi.pdfIn PDF document text
    • https://mayphoviet.com/media/ftp/file/mapilaxirebidudi.pdfIn PDF document text
    • http://www.anaja-inter.org/public/file/gobej.pdfIn PDF document text
    • http://mixmarketing.vn/upload/fck/file/sunidunena.pdfIn PDF document text
    • http://www.trackls.com/application/ckeditor/ckfinder/userfiles/files/tikidixazuxoxewadub.pdfIn PDF document text
    • https://hostsolutions.ro/app/webroot/files/userfiles/files/pokazisamuvepirogitalo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=information+theory+a+tutorial+introduction+pdfPDF link annotation

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