Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e068b6fda1ed552…

MALICIOUS

PDF

76.2 KB Created: 2021-09-03 00:09:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 4295228ddc294706e7cbc61e9a381d19 SHA-1: a45d5d3564aa2db2bb1194b19a50cff6233e15bc SHA-256: 3e068b6fda1ed5524d8d785f65e34f2a453f9240463dd548683b315fc58291f9
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links to external websites, many of which are hosted on disposable domains or compromised CMS uploads, indicating a link farm designed to distribute malicious content. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5886

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://hb1004.com/userData/board/file/xidofazebozej.pdf In PDF document text
    • http://aybar-gallery.com/userfiles/files/38932243112.pdfIn PDF document text
    • https://prsnashville.com/wp-content/plugins/super-forms/uploads/php/files/3c17b7be225e8a65e95f086e9268b13b/tonopuxakinapuxukuvu.pdfIn PDF document text
    • http://popnmusic.fr/userfiles/file/53583053648.pdfIn PDF document text
    • http://buddhavehicle.com/userfiles/file/wuzuvolafiwinusoxoxokepok.pdfIn PDF document text
    • https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/16084b67020a39---puxoxakegagalivoborotab.pdfIn PDF document text
    • https://vallejardin.com/wp-content/plugins/super-forms/uploads/php/files/703c2945c069eda1b20047516dffd6d0/67583109367.pdfIn PDF document text
    • https://dixietemporarystorage.com/wp-content/plugins/super-forms/uploads/php/files/c9c4b2a67f3ebf23fdb241117aa63b0d/35597114108.pdfIn PDF document text
    • http://g-shocktou.com/user_file/file/wuzano.pdfIn PDF document text
    • http://machinegroup.ru/img/outer/files/47036351610.pdfIn PDF document text
    • https://kemxoi.vn/app/webroot/files/images/pages/files/98130240303.pdfIn PDF document text
    • http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608c8a5aa059f---75098479022.pdfIn PDF document text
    • https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076d6396d73f---fotusasajigerojikid.pdfIn PDF document text
    • http://www.huntsvillepr.com/files/files/85173963991.pdfIn PDF document text
    • http://aylincinarli.com/fckfiles/file/21279604579.pdfIn PDF document text
    • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f655853116---13499991026.pdfIn PDF document text
    • http://starlightcelebrates.org/clients/4/43/43e9139217482d7666ce300faf566241/File/23987070388.pdfIn PDF document text
    • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c016ac9bcf3---73628819563.pdfIn PDF document text
    • http://nkmate.com/FileData/ckfinder/files/20210721_53EECBA17551030B.pdfIn PDF document text
    • http://sanzmendia.com/userfiles/files/74398826477.pdfIn PDF document text
    • http://majubesar.net/contents/files/vojidonumawivavu.pdfIn PDF document text
    • http://ntep2008.com/UserFiles/File/43741756784.pdfIn PDF document text
    • http://gidaero.com/upload/fckeditor/file/53878331558.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=ford+focus+2012+sel+manualPDF link annotation
    • https://mediaget.com/userfiles/files/vetasajodapo.pdfIn PDF document text

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