Malicious PDF — malware analysis report

Static analysis result for SHA-256 918034926c7c3160…

MALICIOUS

PDF

63.7 KB Created: 2021-08-01 05:12:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 951ad0a71949ea53cb411b38ab17d4e4 SHA-1: 3bf24b8ccf95125aff8b774729f6d468c3ad4a67 SHA-256: 918034926c7c31603b893953cd8320ccd1c4b5a8e88089010911b4e8ce61535e
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains embedded JavaScript and numerous external links, many of which point to compromised websites or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a non-clustered link farm on disposable hosting, suggesting an attempt to distribute malicious content or phish users. The embedded JavaScript likely facilitates the redirection or download of further malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9517

Heuristics 6

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://sandsflooring.co.uk/ckfinder/userfiles/files/bejunawukojozesav.pdf In PDF document text
    • http://jevades.com/aircraft/fckimages/file/26136541372.pdfIn PDF document text
    • https://eingangrad.ch/userfiles/files/93482610296.pdfIn PDF document text
    • http://ferrocom-spb.ru/userfiles/files/79787391456.pdfIn PDF document text
    • http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16091b0261d178---zagosupibufozuxidunax.pdfIn PDF document text
    • http://hoangnamjsc.com/upload/files/33471476885.pdfIn PDF document text
    • https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/5e8qq1u370qj9ck2ajg44k1n06/wagetis.pdfIn PDF document text
    • https://takipbizde.com/calisma2/files/uploads/699576012.pdfIn PDF document text
    • https://samarthanamparisara.org/apadmin/uploads/userfiles/files/66786569465.pdfIn PDF document text
    • https://www.pennlighting.com/wp-content/plugins/super-forms/uploads/php/files/9e66c1088693ba256f4e10888d8a3bda/85743456022.pdfIn PDF document text
    • http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070dd367a5f8---75147672914.pdfIn PDF document text
    • http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a88d452768e---58037201938.pdfIn PDF document text
    • https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/f23e837ab4ab4fe43cf3beeeabaac890/femufovotiredekuvugeni.pdfIn PDF document text
    • http://autoscuolauniversale.it/userfiles/files/sotogatelofizisemirakazo.pdfIn PDF document text
    • http://draftingfloorplan.com/ckfinder/userfiles/files/xomezuvipakedopesaduwux.pdfIn PDF document text
    • http://pilanatofishing.com/home/sandbox/domains/shelter.sandbox.tritek.hk/public_html/ckfinder/userfiles/files/tebibokumumukuropu.pdfIn PDF document text
    • https://www.hemingway.bg/app/templates/js/ckfinder/userfiles/files/rigeguxatuvusudu.pdfIn PDF document text
    • https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/a3c451975ff69e4c127d447318080d5e/21214380479.pdfIn PDF document text
    • http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c45e8e7212b---47548018313.pdfIn PDF document text
    • https://cashmeredreams.com/wp-content/plugins/super-forms/uploads/php/files/3e96be16b6cc67bc2a37fa69947c2ab6/xezedawomezuzeputabu.pdfIn PDF document text
    • http://cnhhgj.com/upfiles/userfiles/file/73729872294.pdfIn PDF document text
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/e3ce836c5efb3a273b68e3d340a7561b/bofovu.pdfIn PDF document text
    • http://fishtech.org/uploads/userfiles/file/file/86297497645.pdfIn PDF document text
    • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e01f2c61ea1---pubafarafinojiji.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=macbeth+act+1+scene+5+short+summaryPDF link annotation

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