Malicious PDF — malware analysis report

Static analysis result for SHA-256 38bb5a1ff627c627…

MALICIOUS

PDF

62.3 KB Created: 2021-06-30 18:06:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 8cf718efe12c1b09fd3d8da335f1e57c SHA-1: e911254097110364cfbb91da1d14923677c816f8 SHA-256: 38bb5a1ff627c6274d7db264fb9a0ad2b179a617d155b0eb7e394d25a4764dbb
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous links to compromised WordPress sites, indicating it functions as a link farm to distribute malicious content. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature. The presence of UTM parameters in some URLs suggests an attempt to track campaign effectiveness, common in phishing or spam operations.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3510

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://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac83e816fab---89231621234.pdf In PDF document text
    • https://qualitylightsolutions.com/wp-content/plugins/super-forms/uploads/php/files/7688f89e89a0ea894841c84b77385e54/didepipobopo.pdfIn PDF document text
    • https://vico-domrep.com/ckfinder/userfiles/files/voridew.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ce9fdce2349---tatofodovoxa.pdfIn PDF document text
    • http://kusadasidentalclinic.com/img/userfiles/files/dawaparobibefotozetofevo.pdfIn PDF document text
    • https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/c5caaae2031420ac5881e64d5f873848/63053709576.pdfIn PDF document text
    • https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a83e4786a9---43763736634.pdfIn PDF document text
    • http://phillipsbrothersmill.com/clients/6/65/65192871cce8a6e36080a9ebd2808b02/File/10280697344.pdfIn PDF document text
    • https://cleanenergy.mn/uploads/files/sizepafopatofujesezokodo.pdfIn PDF document text
    • https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/rq81qiqnet2d58bdt4ffu2ai6m/60909614024.pdfIn PDF document text
    • http://akcjonariusz.com/UserFiles/file/21683506985.pdfIn PDF document text
    • https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/acdf702a88be3a90b71e6b8c871ae36e/kedebalepede.pdfIn PDF document text
    • http://archissimo.eu/userfiles/files/tijokifuwuxobekegeselar.pdfIn PDF document text
    • http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083598ecef06---75263086763.pdfIn PDF document text
    • http://tubietelbar.hu/uploadfile/buwaruponi.pdfIn PDF document text
    • https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/16084f5368d0df---milonofime.pdfIn PDF document text
    • https://www.straightmyteeth.eu/wp-content/plugins/super-forms/uploads/php/files/858dd289a21c8745cabcd848236b9f76/pemewiwitegoriburozotoju.pdfIn PDF document text
    • https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/98kr6tepu4jd4u29b03cus9qae/fevanewivukefiba.pdfIn PDF document text
    • http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608ac3f448ed2---sodoserazogukiwaviz.pdfIn PDF document text
    • http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d365b5686ac---netopog.pdfIn PDF document text
    • http://www.anjhimayath.com/upload/file/nibitub.pdfIn PDF document text
    • https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/smt7ltb9ugge3pntnugdjfvla7/pipefit.pdfIn PDF document text
    • https://www.makathastaliklari.net/wp-content/plugins/formcraft/file-upload/server/content/files/160724a17e6d6c---tages.pdfIn PDF document text
    • https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/vo22m7l74tjaqa2fj2guqec9fe/jobazutabuva.pdfIn PDF document text
    • http://montaze.org/democms/userfiles/file/wisusatagiwadamivo.pdfIn PDF document text
    • https://kristinanamaste.eu/files/31212336285.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=2011+altima+owners+manualPDF link annotation

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