Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ab9578b9f75353f…

MALICIOUS

PDF

53.9 KB Created: 2021-08-19 13:19:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 701bb5ac1c190f68fb5c90505308f862 SHA-1: 284e8fee50bcfd7cd1169917c083d13e1f0e2c33 SHA-256: 7ab9578b9f75353fa7d505ae23e2a559ddcc17946a4e13706242727b58b1bb86
182 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF contains embedded JavaScript and multiple external URIs, many pointing to compromised WordPress sites or disposable hosting, suggesting a phishing or malware distribution lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8525

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://samuelben-horin.com/userfiles/file/woweziwef.pdf In PDF document text
    • https://ethiquedevelopers.com/wp-content/plugins/super-forms/uploads/php/files/5d5d3110f4b7aa2c6ad1fbe20639cb43/wewemuredidog.pdfIn PDF document text
    • https://majubesar.org/contents//files/fekagedinujekejijadukizol.pdfIn PDF document text
    • http://marthomaiticherukole.com/userfiles/file/sutus.pdfIn PDF document text
    • https://chachachat.info/js/ckfinder/userfiles/files/wopik.pdfIn PDF document text
    • http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606f64b23bb6f---zimonupo.pdfIn PDF document text
    • https://whiteelephant.co.in/wp-content/plugins/super-forms/uploads/php/files/ab4873024a1a18d0d8c674181a606b12/68129990631.pdfIn PDF document text
    • https://www.ideakliniksisli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc83b68a206---fifibiwo.pdfIn PDF document text
    • https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/160812097eed00---53836699239.pdfIn PDF document text
    • http://ranch.pl/files/file/25774905732.pdfIn PDF document text
    • http://aviteksural.ru/admin/ckfinder/userfiles/files/lurelobufufonepivup.pdfIn PDF document text
    • http://www.knickmeier.net/images/pageimg/file/66572594395.pdfIn PDF document text
    • http://curry-box-deluxe.de/userfiles/file/xopulatanovojoxogenu.pdfIn PDF document text
    • http://canadapremiumlubes.com/survey/userfiles/files/8572245671.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b1941c5750---kamixesovufetijak.pdfIn PDF document text
    • http://xn--h1acbpobggs.xn--p1ai/data/files/wenapekeduwit.pdfIn PDF document text
    • https://earplighting.com/wp-content/plugins/super-forms/uploads/php/files/43bd11e0b0d98243851adfe75269594a/42598841651.pdfIn PDF document text
    • http://denis-lefebvre-services.com/fichiers/file/jokisi.pdfIn PDF document text
    • http://bamila.vn/luutru/files/wogebagigabekapi.pdfIn PDF document text
    • http://www.socalgreatwhite.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c01c0a4146---5647856327.pdfIn PDF document text
    • http://krevue.cz/UserFiles/File/55704924135.pdfIn PDF document text
    • http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/160729815438a5---lobiterijovowadojopo.pdfPDF link annotation
    • http://xn--2e0b95unoa536adofm5h.com/userfiles/file/kokibesaravifijevuw.pdfIn PDF document text
    • https://12shio1.com/contents/files/sazanebapimekofabojowir.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=por+que+a+mi+valeria+piassa+polizzi+pdfPDF link annotation

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