Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b5f20975875b0c7…

MALICIOUS

PDF

109.5 KB Created: 2021-07-07 02:42:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 35f8e34bb0bb8fa53a08aac286bd221b SHA-1: a07ebf05787c34ab9cbe700714ce43e6b6e33847 SHA-256: 6b5f20975875b0c7170219149a6276dbcd67ac8c2a821b0387ea56a1ab257ae0
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a link farm with numerous URLs, many hosted on compromised WordPress sites, suggesting a phishing or malware distribution attempt. ClamAV detection as 'Pdf.Phishing.Trojan' further supports this assessment. The file's structure and embedded links indicate it's designed to lure users to external malicious content.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3958

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 https://huntic.ru/uplcv?utm_term=pacific+beach+middle+school PDF link annotation
    • http://alphabodysupplements.com/newerac2c/userfiles/file/38414802649.pdfIn PDF document text
    • http://bertrandetgastineaudesigners.com/userfiles/file/77880597769.pdfIn PDF document text
    • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/9h5eb8c4cdchjptqakuaulm0ds/matirazegaxiluvofobuditoj.pdfIn PDF document text
    • https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/30ea9a6c5da4983996407b34ec5485dc/63066764695.pdfIn PDF document text
    • https://luxurytravel-show.com/wp-content/plugins/super-forms/uploads/php/files/a9510924cb75b12aab6d483407523883/79493316666.pdfIn PDF document text
    • https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/p3gk7jhitlp7up9f121loa4bp7/bupux.pdfIn PDF document text
    • https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5c29cf7b0---rizawebifibezuko.pdfIn PDF document text
    • https://nhorizontours.com/userfiles/files/najipegupofusaromiwo.pdfIn PDF document text
    • http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a926f64183---xopipitapisuzumadujufij.pdfIn PDF document text
    • https://3dreamvr.com/wp-content/plugins/super-forms/uploads/php/files/d8a56e526aa068669b6de800cc93f381/wekezujatino.pdfIn PDF document text
    • http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6d06ebb4e7---51471605289.pdfIn PDF document text
    • http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608bd71838c36---vusoxezulinazebepu.pdfIn PDF document text
    • https://www.chesapeake-lighting.com/wp-content/plugins/super-forms/uploads/php/files/34ce3ccabc9ff366f4e4801fb0e0e2f8/dobezegawirixefajijumazu.pdfIn PDF document text
    • http://avtoarka.ru/wp-content/plugins/super-forms/uploads/php/files/31032b0bcc800528ce47ff49d221a939/manajuzupejabemo.pdfIn PDF document text
    • http://nsk-nalogov.net/upload/files/jufaboserasofanaruviton.pdfIn PDF document text
    • https://andana.us/files/files/99940431365.pdfIn PDF document text
    • http://airsoft1.ro/files/file/novosewifef.pdfIn PDF document text
    • http://tauzetaques.com/clients/1/1b/1b95303171b4519794d6fee637ef680e/File/xebewegesopunasifugaduwul.pdfIn PDF document text
    • https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/59ee95e6808de62ac883d2bf50422222/ramixigiba.pdfIn PDF document text
    • https://lightspec.com/wp-content/plugins/super-forms/uploads/php/files/f21600cdf40c7c40db4430b6e056589a/65354180205.pdfIn PDF document text
    • http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1607c87d6847c0---22830717938.pdfIn PDF document text
    • https://oiweld.com/wp-content/plugins/super-forms/uploads/php/files/ccb0f5c89109cd1a6ec9a8da7309d29b/soteke.pdfIn PDF document text
    • https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/112df11ecb8742ecd8a8e362a75601a7/81711406232.pdfIn PDF document text
    • http://aksaaydinlatma.com/img/editor/image/file/dipubav.pdfIn PDF document text

Related samples 8

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