Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f7375fe46380c6d…

MALICIOUS

PDF

38.1 KB Created: 2021-09-29 09:25:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-21
MD5: 9f4eaf9f89e6b6a3a7bfd72d6fbc0ef0 SHA-1: d380261b4a0d2e329ba3e0b476da701d74d0f153 SHA-256: 2f7375fe46380c6dee7f66cfd00702b34b66ccb4d4df3f36e791312aa809f036
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF is identified as an image-only lure, typical for phishing campaigns, and contains numerous embedded URLs pointing to potentially malicious content. The ClamAV detection and ML classifier further support its malicious nature, indicating it's likely a trojan designed to redirect users to harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8144

Heuristics 5

  • 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 38 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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.
  • 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://fullerton.kopanramen.com/uploads/files/pozuluwojizu.pdf In PDF document text
    • https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/ddce08ea5a49a148508f96dfb06d28df/14038726187.pdfIn PDF document text
    • http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1613c7dfc9facc---legolijevofipas.pdfIn PDF document text
    • http://jmlukanich.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/3058723806.pdfIn PDF document text
    • https://eltonltd.ru/sites/default/files/uploads/roraneroziputopawuti.pdfIn PDF document text
    • http://archifolder.com/userfiles/files/27215726728.pdfIn PDF document text
    • http://litroshaber.net/resimler/files/8684626785.pdfIn PDF document text
    • http://fructusartis.com/i/File/luzolizok.pdfIn PDF document text
    • https://adium.ru/userfiles/file/83987501093.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f5ba2016c0---21644659940.pdfIn PDF document text
    • https://atputasbaze.lv/images/userfiles/files/xaziliwamote.pdfIn PDF document text
    • http://chugguwang.com/files/fckeditor/file/60740616963.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=how+to+download+pokemon+sword+and+shield+apkPDF link annotation

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