Malicious PDF — malware analysis report

Static analysis result for SHA-256 59ce9a102cacc95d…

MALICIOUS

PDF

73.5 KB Created: 2021-08-12 01:00:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 9405fd2d919ac17ed7092b12668e6016 SHA-1: 295ee79005fbba2c2e2f2a236ac89eec438426b3 SHA-256: 59ce9a102cacc95d2de6613024b8aaa0652bbd790ebe2861c3123699a9e15d4e
162 Risk Score

Malware Insights

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

The PDF contains embedded JavaScript and a significant number of external URIs, many of which point to compromised WordPress sites and disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9720

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://coming-c.com/userfiles/file/88964411777.pdf In PDF document text
    • http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160cd16f2bcd28---84985168661.pdfIn PDF document text
    • https://institut-arabe.org/ckfinder/userfiles/files/27577235082.pdfIn PDF document text
    • http://alexdisinfestazioni.com/userfiles/files/11007094497.pdfIn PDF document text
    • http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a13d5396c0f---12823581188.pdfIn PDF document text
    • http://barudan.hk/UploadFile/file/20210626073206763.pdfIn PDF document text
    • http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/c893ba39883a3023da14873c1a0c19db/pawix.pdfIn PDF document text
    • http://artpolinakuzina.ru/pict/file/gatepuwu.pdfIn PDF document text
    • https://fotofidelity.cz/userfiles/file/tugafiw.pdfIn PDF document text
    • https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/1607159e0e542c---nikoji.pdfIn PDF document text
    • http://eco-versute.com/app/webroot/ckfinder/userfiles/files/1664761552.pdfIn PDF document text
    • https://earthideasawnings.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a945989524---6543676840.pdfIn PDF document text
    • http://abwalabamaave.com/uploads/files/99061670747.pdfIn PDF document text
    • http://peach2560.xyz/js/ckfinder/userfiles/files/96532306444.pdfIn PDF document text
    • http://hauptlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/90918203027.pdfIn PDF document text
    • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/60b2476132fea49dbb31561a39b6aec1/60299687232.pdfIn PDF document text
    • https://alkalacarservice.com/public_html/userfiles/file/vefepogivoru.pdfIn PDF document text
    • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/4191b8cfbb74082d8d9affd405922e15/32904021332.pdfIn PDF document text
    • http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/1606f6087e9078---16831889253.pdfIn PDF document text
    • http://merwepizza.com/upload/file/40167405821.pdfIn PDF document text
    • http://moscow-vernisage.com/files/files/lebofibukasodibitajexor.pdfIn PDF document text
    • https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16072473cd4671---6757933462.pdfIn PDF document text
    • http://eldmsh1.ru/js/ckfinder/userfiles/files/zosilonavazitipeg.pdfIn PDF document text
    • http://ontsgoi.shop/uploads/files/dopaju.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=elodie+bouchez+filmPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eda5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDA5 10392 bytes
SHA-256: 6bf9342e5a05fccd08a0a987ee9055f86f532f99dc3e6164f501b88f2d4a6d55

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