Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c7611e6c9a55ea9…

MALICIOUS

PDF

63.7 KB Created: 2021-08-18 15:28:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: ce12abc512f649a7cf49913485b4bea4 SHA-1: b029f608555d370e9a949c1f121cd50043ef133a SHA-256: 3c7611e6c9a55ea9cd652832723c3fbb6c3ee5e33011142e8d83a2af82bdfd18
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and a link farm pointing to multiple compromised websites, suggesting an attempt to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. The embedded JavaScript is likely used to facilitate the download or redirection to malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7662

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://capesociety.ca/uploads/files/17300233323.pdf In PDF document text
    • https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/160bfa661439e1---xibukem.pdfIn PDF document text
    • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607de054abb0f---vuxugojemipedezidupogad.pdfIn PDF document text
    • http://rolfingnaples.com/clients/a/a5/a5422f62036d2d393d866963e902351c/File/damibudad.pdfIn PDF document text
    • https://classykitchen.pl/web/uploads/files/pafegamuteguzolodogimut.pdfIn PDF document text
    • http://sun-green.be/ckfinder/userfiles/files/1383193272.pdfIn PDF document text
    • http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071f4707b14a---94964021318.pdfIn PDF document text
    • http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160905e911d1fa---tevaregolewapagefovi.pdfIn PDF document text
    • https://vegas-shop.net/uploads/files/13260545150.pdfIn PDF document text
    • http://somersetcountybar.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/57644626569.pdfIn PDF document text
    • https://sensormaticltd.com/app/templates/js/ckfinder/userfiles/files/rekatazanov.pdfIn PDF document text
    • http://royalproductsonline.com/userfiles/file/pugajutoguk.pdfIn PDF document text
    • https://singaporeroadshow.com/wp-content/plugins/super-forms/uploads/php/files/6baea869749e0fb48681c71dcd2dc684/46167886957.pdfIn PDF document text
    • http://mamolenasnc.it/userfiles/files/seridusurafaxudamo.pdfIn PDF document text
    • http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/cp5rnpo2ea09iqqedneuoi4u91/delofumozetanesivutet.pdfIn PDF document text
    • https://jclifeschools.org/wp-content/plugins/super-forms/uploads/php/files/8f18290b59ed9b7efcd2a1cd01d8d5da/lobuw.pdfIn PDF document text
    • http://etnorom.hu/pictures/31754966240.pdfIn PDF document text
    • https://dogathermalhotel.com/resimler/files/45519956170.pdfIn PDF document text
    • http://alexanderjamesbackcatalogue.com/userfiles/file/pugom.pdfIn PDF document text
    • https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/37913f883020c54c9760594da7ef4a1d/notivux.pdfIn PDF document text
    • https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f1f83d0626c---vujafovozibop.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=ap+calculus+ab+final+exam+with+solutionsPDF link annotation

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