Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1416d4324265456…

MALICIOUS

PDF

62.3 KB Created: 2021-09-19 06:45:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 57265f4405ab6fe59a613159c39b39f7 SHA-1: fce0a005334fccd2fdb517533a02a62168ac29aa SHA-256: a1416d43242654562fe4112aaf10edc50894b6896981900da72679c43fba0c23
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many pointing to potentially compromised websites, and one heuristic identifies it as a link farm designed to obscure malicious destinations. The presence of PDF_URI and EMBEDDED_URL heuristics indicates the document's intent to redirect users to external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6913

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://fotostudiovaccari.it/userfiles/files/43323382567.pdf In PDF document text
    • http://www.mbk-montage.nl/ckfinder/userfiles/files/31672209244.pdfIn PDF document text
    • https://cahayaapi1.com/contents/files/50679572848.pdfIn PDF document text
    • http://bdsps.org/slbdavbatala/userfiles/file/rabagetupudamegusimavis.pdfIn PDF document text
    • http://cmorshomecareassociates.org/uploaded_files/userfiles/files/39254425482.pdfIn PDF document text
    • https://dp-engineers.com/admin/userfiles/file/77634951442.pdfIn PDF document text
    • http://www.uc-kushiro.net/images/library/File/xovesifepoku.pdfIn PDF document text
    • http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613dd83f2fb77---34790088237.pdfIn PDF document text
    • http://lse.hu/userfiles/file/64020701036.pdfIn PDF document text
    • https://zohopinler.com/calisma2/files/uploads/99650707873.pdfIn PDF document text
    • http://sellmysayarah.com/userfiles/files/24462293851.pdfIn PDF document text
    • https://topupdana.com/contents/files/tukolebupinewiwulir.pdfIn PDF document text
    • http://businessdevelopmentcenter.pl/uploads/userfiles/files/sazefak.pdfIn PDF document text
    • http://kfnmsz.com/upfolder/e/files/20210905211624.pdfIn PDF document text
    • https://deepex.hu/hirek/files/41399291748.pdfIn PDF document text
    • https://hoavily.com/uploads/files/59177298903.pdfIn PDF document text
    • http://ttccid.com/userfiles/file/mezuwowiwomoj.pdfIn PDF document text
    • http://floramarble.com/uploads/14741880564.pdfIn PDF document text
    • http://energy-labels.nl/userfiles/file/bekifivizemojigikibiwo.pdfIn PDF document text
    • https://namphuctourist.com/userfiles/file/dideda.pdfIn PDF document text
    • http://lorichphoto.com/pictures/file/dejenekowokomupasasaz.pdfIn PDF document text
    • https://dcicz.org/userfiles/file/mewabidesenos.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=game+robbery+bob+mod+apkPDF link annotation

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