Malicious PDF — malware analysis report

Static analysis result for SHA-256 40bc0da24e3ad3a7…

MALICIOUS

PDF

69.3 KB Created: 2021-07-03 21:45:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: f44851e83905c690e702af36691298be SHA-1: 90f0ffca17c2241f2195c5857648a28f57c420d6 SHA-256: 40bc0da24e3ad3a73814459141d4a807de6a089247fecffb10caaffa3cb64436
182 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains embedded JavaScript and is identified as a phishing lure. The document's structure suggests it's an image-based lure designed to trick users into clicking a link. The linked URLs point to PDFs hosted on compromised CMS uploads, indicating a likely phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7163

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 69 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://ctapigroup3.com/contents//files/42286479563.pdf
    • http://montaze.org/democms/userfiles/file/61286681724.pdf
    • http://hotspot-usa.com/js/upload/files/kofozo.pdf
    • http://sportgalaktik.sk/userfiles/file/18481710019.pdf
    • https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607648722f249---nogotibojigalu.pdf
    • http://2girlstrippin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c27093c940---14630276917.pdf
    • http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/160769e17bafc3---93234314001.pdf
    • http://bualuang101.com/backoffice/upload/files/16514009523.pdf
    • http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160838abae4024---sizosemu.pdf
    • http://blackivy.pl/userfiles/file/zigaxobugonemusisidaralol.pdf
    • http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f16c1d8cb9---36200335025.pdf
    • https://earthideasawnings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e087c442700---tevet.pdf
    • http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079705571937---18056006729.pdf
    • https://alsterparkett.de/wp-content/plugins/super-forms/uploads/php/files/c6ib5rpbpcc29jgefn7ebeagfi/zevijefebexuwufa.pdf
    • https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/hsjdgjcf652ems6cb58a3k5na1/34347207229.pdf
    • http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ce12868a7f---notaradaruvagesuz.pdf
    • https://dm288.rs/slicice/file/sulevefit.pdf
    • https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609aeaa689586---sexujazalofufesenez.pdf
    • http://sochi-vitrazhi.ru/ckfinder/userfiles/files/98024864898.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=catalysis+by+approximation

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