Malicious PDF — malware analysis report

Static analysis result for SHA-256 67dbe618549a3411…

MALICIOUS

PDF

58.4 KB Created: 2021-05-10 05:18:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 76395bc2e3702fd1e15cf02536a3feb5 SHA-1: 6db258c4a412c5521a7837d145f026433e067310 SHA-256: 67dbe618549a3411ca1254212bb0c869ae1bdda5844243388bcc1fb8b8b667b9
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous links to external websites, many of which are hosted on compromised WordPress installations. The document body, though heavily obfuscated, suggests a lure related to 'Fema is 700b test answers', indicating a phishing or credential harvesting attempt. The presence of external URIs and link farms points towards the distribution of malicious content or redirection to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6618

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://pixomot.ru/uplcv?utm_term=fema+is+700b+test+answers
    • http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160844cd0f4186---39833624500.pdf
    • http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160988fcd0c9c8---84368075640.pdf
    • https://law.myvzl.com/wp-content/plugins/super-forms/uploads/php/files/tlhic5o5vmc6et1dl9njut3php/rolifisemuxe.pdf
    • https://daleplumbinginc.com/wp-content/plugins/super-forms/uploads/php/files/b312fa8b76ab409dedc998a34c20aa57/tunokoxoxogamovimaneto.pdf
    • http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1608a010ede9a9---4934667194.pdf
    • https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/mo8lps8mbafv46lb7h5vlitka5/zuxujomobaxisutajiwojopun.pdf
    • http://taxicityplus.ru/userfiles/file/60721190637.pdf
    • https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/aaa937484704580d3b10562ae6d5eefa/47042231084.pdf
    • https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/1606e91e51e615---34062931054.pdf
    • https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/u25japn7h5esou12m6q4fo70b5/peduzawobapusolita.pdf
    • https://atraba-holding.com/userfiles/file/lamadumagakunigomala.pdf
    • https://ilc.ua/wp-content/plugins/super-forms/uploads/php/files/9tk96g506bka6ltdapjr257v82/50313693234.pdf
    • http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f9e886bf92---98124615318.pdf
    • https://www.horisunmauritius.com/wp-content/plugins/super-forms/uploads/php/files/a245add4fd641e6b7ae969fab62a6a12/zobuwefakuve.pdf
    • http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16082d2313702b---jatudidukipiwufobene.pdf
    • http://pferdefreunde-brueckenhof.de/sites/default/files/userfiles/file/5308111546.pdf
    • http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f19069f4b3---1060736642.pdf
    • http://adance0112.com/upfile/editor/file/26015218003.pdf
    • https://cosalesrep.com/wp-content/plugins/super-forms/uploads/php/files/03e543d8fb42379f558ff164d1329e04/23914459142.pdf
    • https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/160800dc032515---minamo.pdf

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