Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6dfea79d7364b91…

MALICIOUS

PDF

64.0 KB Created: 2021-09-04 08:16:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 9ea94d717de7ae8a88d4fe53e5b003c1 SHA-1: 5b3254c9bb337d7cb5a82c7a6064285fb779bb4b SHA-256: a6dfea79d7364b9158d3677dcc4ee0afee9256196ba698b395f136b54a002631
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm pointing to multiple external URLs, some of which host PDF files. The presence of a raw IP address in one of the URIs and the detection by ClamAV as 'Pdf.Phishing.Trojan' strongly indicate malicious intent. The ML classifier also flagged this PDF with a high score, supporting the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8034

Heuristics 6

  • 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.
  • 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://finproekt-msk.ru/userfiles/file/tagodedewu.pdf In PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5f775ab607---bivasen.pdfIn PDF document text
    • http://ellissi.org/userfiles/files/gokogiliwovekepetidozir.pdfIn PDF document text
    • https://sarujiovalente.com/wp-content/plugins/super-forms/uploads/php/files/su2ksop0jtpvv6u2ogoapm2qvj/bunawexeriresufir.pdfIn PDF document text
    • https://www.idromeccanicasrl.com/idromeccanicasrl.com/wp-content/plugins/super-forms/uploads/php/files/4d52e041369fd77bffc83e1aa5786073/81092880053.pdfIn PDF document text
    • http://tlxzkj.com/uploads/file/312154504140.pdfIn PDF document text
    • https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/7011dd93ba926ec115bd5edc70d0d2b6/xozadifedevafela.pdfIn PDF document text
    • http://dzbnf.com/upload/file///naxopatuba.pdfIn PDF document text
    • https://www.scilights.com/wp-content/plugins/super-forms/uploads/php/files/0ad70bb751e702334d09fbcd420d2157/kurimum.pdfIn PDF document text
    • http://hkbroadwin.com/userfiles/37888801961.pdfIn PDF document text
    • https://www.idd.no/ckfinder/userfiles/files/33240833631.pdfIn PDF document text
    • http://aire-limpio.com/img/editor/file/12882107094.pdfIn PDF document text
    • https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609f1e5dac4d1---ledenexibokuviwimopupora.pdfIn PDF document text
    • https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f57b39054ff---kisoxixo.pdfIn PDF document text
    • http://donauwell.at/userfiles/file/97828228277.pdfIn PDF document text
    • https://camping-du-lac-dijon.com/fichiers/23151891513.pdfIn PDF document text
    • http://prime-standard.com/piceditor/file/26546718060.pdfIn PDF document text
    • http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/16115e1e46aade---bomapuwelajixewuleki.pdfIn PDF document text
    • http://eternaseguros.net/files/files/30941015059.pdfIn PDF document text
    • http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c8d2c20c3c9---sogenupipenevibibamuzeze.pdfIn PDF document text
    • http://157.230.241.115/image/upload/File/rexorafirarakowagepa.pdfPDF link annotation
    • http://schodylux.pl/userfiles/file/xitivexixes.pdfIn PDF document text
    • http://entone.es/wp-content/plugins/super-forms/uploads/php/files/54093667a74fa32428693d9af6c009e5/98304564964.pdfIn PDF document text
    • http://malovanesklomh.cz/images/file/3172448033.pdfIn PDF document text
    • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/260862e47d42342859e2d697078e345d/titemepugopebexifamobuw.pdfIn PDF document text
    • http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c1d24859b86---sonaf.pdfIn PDF document text
    • https://samajsutra.com/userfiles/files/rikafovekinoxifapi.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=extensor+de+wifi+tp+link+manualPDF link annotation

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