Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d9ecf15230bd024…

MALICIOUS

PDF

129.1 KB Created: 2021-07-06 22:36:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-29
MD5: d406a7307173be95a6930c872fefa19a SHA-1: f299903dcadcd7824b927d82822e7ced6da5f9d1 SHA-256: 9d9ecf15230bd0241a858abe2d1bbfa02e996194192f9d4b70f06be146782fd1
124 Risk Score

Malware Insights

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

The PDF file contains numerous links pointing to compromised WordPress sites, indicating a link farm designed to host malicious content or facilitate phishing. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature. The presence of multiple distinct hosts and a high number of links suggests a coordinated effort to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4607

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://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/16074c2fe7cf2f---51355630286.pdf In PDF document text
    • https://k2salight.com/wp-content/plugins/super-forms/uploads/php/files/4774b83a0c6ea72932b3e89cae15d218/16147341980.pdfIn PDF document text
    • http://denki-shonan.com/uploadsfile/53905573301.pdfIn PDF document text
    • https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/968788c9debf3040f5c74a6862c0ac84/lofivufofurebujaselimi.pdfIn PDF document text
    • http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e3f08e0f55---13828285859.pdfIn PDF document text
    • https://akapacha.com/userfiles/file/68963572510.pdfIn PDF document text
    • https://tsafar.ir/basefile/tsafarir/files/32185859431.pdfIn PDF document text
    • http://baaningdoi.com/file_media/file_image/file/1155621546.pdfIn PDF document text
    • https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/0b2dcdb89205a0f4e853d5a6bc0dcaaa/zezifumatalidimubusin.pdfIn PDF document text
    • http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160a68f1555ab6---zigabinegubuweb.pdfIn PDF document text
    • https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160a7aae920bbd---15321934836.pdfIn PDF document text
    • http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/1606dc078c6229---32207810807.pdfIn PDF document text
    • https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/r8ck6fr45p65tsb6s7rfi6ic7b/94804512029.pdfIn PDF document text
    • http://sattamatkapatti.com/userfiles/file/84980687418.pdfIn PDF document text
    • http://orgue-chantepie.info/FCKeditor/upload/file/66891457347.pdfIn PDF document text
    • https://calldidocta.com/wp-content/plugins/super-forms/uploads/php/files/2dd785a2356834d1ea9f88aa32af4610/28467242551.pdfIn PDF document text
    • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16070479d119df---kajutudezapema.pdfIn PDF document text
    • https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/292b1a598474f3924b2988a83e6bd8a8/3992424976.pdfIn PDF document text
    • https://www.helpfulhunks.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160dbea2995be6---17531807756.pdfIn PDF document text
    • http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607674966ebb8---62249867516.pdfIn PDF document text
    • http://matsusushionline.com/uploads/files/58732244961.pdfIn PDF document text
    • http://jjburgerut.com/uploads/files/zudaf.pdfIn PDF document text
    • http://dok-vo.ru/userfiles/file/8576782552.pdfIn PDF document text
    • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160be538073a87---3964105280.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=gray+wolf+sizePDF link annotation

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