Malicious PDF — malware analysis report

Static analysis result for SHA-256 212a1bb68a40011f…

MALICIOUS

PDF

69.9 KB Created: 2021-07-09 01:49:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-29
MD5: 0b9c75988b314611144b73b13dbeddb0 SHA-1: 91690571115b25154fb4ba3e0c80de35fece7aa5 SHA-256: 212a1bb68a40011f353ad630ffb7e61bafc2c3970d7f940f11971aad2d7ad185
124 Risk Score

Malware Insights

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

The file is a PDF document identified by ClamAV as Pdf.Phishing.Trojan. It contains numerous embedded URLs, many of which point to compromised WordPress upload directories or disposable hosting. These links likely serve as a link farm to redirect users to malicious sites for phishing or further malware delivery.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4829

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://firegallery.ru/img/upload/kipalubaxaranom.pdf In PDF document text
    • http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/160a1ba8e5a033---voxozevotusetawajid.pdfIn PDF document text
    • http://valeneighbors.com/userimages/fituware.pdfIn PDF document text
    • https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/f63c33c2a4b8e01cd936ad24187ad04b/76034505820.pdfIn PDF document text
    • https://sbufficio.it/file/kojudomemulabutik.pdfIn PDF document text
    • https://lederstuehle-shop.de/ckfinder/userfiles/files/58576821176.pdfIn PDF document text
    • https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/8a2214f1d5bf18204ad081a255652604/pilalafatived.pdfIn PDF document text
    • http://reunionfamily.com/clients/6/6c/6c58f7de0247188f02debbcda007d80b/File/juzamu.pdfIn PDF document text
    • http://abwvictory.com/uploads/files/dogivokuxak.pdfIn PDF document text
    • https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/40517cfd4f2e5d083d62aff8fa074ccb/sexumitopa.pdfIn PDF document text
    • http://www.goldenlantern.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1608507c1b7a75---785972239.pdfIn PDF document text
    • https://www.ppmcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/hk5hlhmt9cc4cusm7n0b6t8h94/rixobejiximegaxu.pdfIn PDF document text
    • http://absolutelyneon.com/userfiles/file/60092825523.pdfIn PDF document text
    • https://georgiamusicpartners.org/wp-content/plugins/super-forms/uploads/php/files/4fa9fc8a393418605bf30c843434fcbc/10232471210.pdfIn PDF document text
    • http://vanhacollection.com/images/files/71457481509.pdfIn PDF document text
    • http://midiabyz.com/wp-content/plugins/super-forms/uploads/php/files/1164cef9ffbffd1b680ba4b40432b716/40877237962.pdfIn PDF document text
    • https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/51645e0a08dc2a69a6fb5ded12d60274/50319458945.pdfIn PDF document text
    • http://erbaytag.com/resimler/files/moxewisoraver.pdfIn PDF document text
    • https://useoneconvo.com/wp-content/plugins/super-forms/uploads/php/files/7cc2de76d9fd08cbdbadb4f52e0bfdc2/97403248331.pdfIn PDF document text
    • http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/b14e6d105e89c3d9e599b194fb91332d/kesozaraxeka.pdfIn PDF document text
    • http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb1277af35a---42106652842.pdfIn PDF document text
    • https://tenekedjieva.com/uploads/file/kufixatarep.pdfIn PDF document text
    • http://laweasy.kr/userfiles/file/16656811371.pdfIn PDF document text
    • https://ankaratemizlikcim.com/depo/sayfaresim/file/43400480495.pdfIn PDF document text
    • https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/6f77b091d7db729387714f6992b1841d/95962265679.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=reel+in+a+fishPDF link annotation

Related samples 8

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