Malicious PDF — malware analysis report

Static analysis result for SHA-256 aeb3bff9d6bc6267…

MALICIOUS

PDF

61.0 KB Created: 2021-07-25 03:48:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 9c65b63e28fb8815592990f0be98c94b SHA-1: c242706afb922eda76ccb2ff747f386eb5669f87 SHA-256: aeb3bff9d6bc626710ce6483ad736348df173b0aad77a9e54fd46837cb3f0c28
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample contains embedded JavaScript, a common technique for executing malicious code within PDF documents. It also features numerous links to compromised websites, suggesting an attempt to lure users to malicious content or download further payloads. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly indicates malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5046

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 https://www.skyline-recruiting.com/wp-content/plugins/super-forms/uploads/php/files/ade6fbd162d72bb36337a00164f4729e/11980365566.pdf
    • https://chandrakantmusicacademy.org/ckfinder/userfiles/files/redetobezoropunemomeziv.pdf
    • https://prospr.fr/ckfinder/userfiles/files/fanugijufodo.pdf
    • https://empylean.com/wp-content/plugins/super-forms/uploads/php/files/ak72cs55a9mn5hphdtab7cf3se/wirirowegokawina.pdf
    • https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607f2a794a666---34097876920.pdf
    • https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606f483d67798---fafewezupuvumesaviwis.pdf
    • http://ikhmongol.mn/ckfinder/userfiles/files/dusofanedapewejaketiga.pdf
    • https://chinatupai.com/web/js/ckfinder/userfiles/files/6951187846.pdf
    • http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086907b07b15---60255959924.pdf
    • http://geometrabottero.it/userfiles/files/timorexidanizexofasip.pdf
    • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16074f8a01278d---jorivagesemupefuledolefoz.pdf
    • https://performanceltg.com/wp-content/plugins/super-forms/uploads/php/files/b88b7b644feb9cf8ffd083ce6fd9b3a5/68288869497.pdf
    • https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b2d69c0241---kuvuxovagem.pdf
    • https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/5313769a5b6d5a333c9d72b1b847eea9/wovasikududoruragusupeza.pdf
    • http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e48ef87212---29485683621.pdf
    • http://ahlhy.com/uploads/file/290310004706.pdf
    • https://getracemirates.com/userfiles/files/zugugofunetomadexixora.pdf
    • http://safeabortionnepal.com/userfiles/file/54869882945.pdf
    • https://ises.ca/phpsites/vertical_living/uploads/file/sisukotariwetugimure.pdf
    • https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/4db9e68834f1d9289e526daf42076689/44279149703.pdf
    • https://agrilaui.com/userfiles/file/61011900671.pdf
    • http://d4smontreal.com/clients/f/f5/f58105ca183540932673f5bf18e62671/File/23994981700.pdf
    • https://lasvegasrebath.com/wp-content/plugins/super-forms/uploads/php/files/ca53cd4f1612fd75fda5e5d589508c89/nodemuwapopaga.pdf
    • https://ajitcoatings.com/uploads/nukataj.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=how+to+bypass+mega+limit

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