Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0f1fdc062a4c6af…

MALICIOUS

PDF

38.6 KB Created: 2021-06-13 16:59:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 3403604e4492f9c8f118d6b53e8a51bc SHA-1: bc31d37c18c37ade4b2d684e70bffad8237b3dd1 SHA-256: e0f1fdc062a4c6afd2ce9a41ac10002ee56a19da6d6e601dc48dd8e54486c940
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF is identified as malicious by ML classifiers and ClamAV, and exhibits characteristics of a phishing lure. It contains an image designed to obscure clickable links, directing users to various domains, some of which appear to be compromised WordPress sites. The presence of multiple external URIs suggests an attempt to redirect users to malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7332

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
  • 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.
  • 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.
  • 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://coretry.ru/uplcv?utm_term=careers+for+consul+personality PDF link annotation
    • https://sasalidayanisma.org/uploads/file/funutizedawuranuzap.pdfIn PDF document text
    • https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2b7539be46---nikivoninosasogirofe.pdfIn PDF document text
    • https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/d84e75836201f9708524f4081880d876/sojasurubum.pdfIn PDF document text
    • https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/ed74d83e809030fdae07c92ba2b75644/7976468465.pdfIn PDF document text
    • https://taxiporec.top/wp-content/plugins/super-forms/uploads/php/files/9v6mpv7str6pq244vn249rvlg4/mebekeme.pdfIn PDF document text
    • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/cgoetu8hb16to020rkiohjrl27/29733839944.pdfIn PDF document text
    • http://aliceinformaticasrl.com/user/pages/20991962233.pdfIn PDF document text
    • http://bsp-oblspl.org/ckfinder/userfiles/files/67775902478.pdfIn PDF document text
    • http://www.ambredore.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071b1ec1830a---dirajala.pdfIn PDF document text
    • https://securitydm.rs/slicice/file/zuxotogamuvusiz.pdfIn PDF document text
    • http://bualuang101.com/backoffice/upload/files/nikatuje.pdfIn PDF document text
    • https://realestateconnect.biz/wp-content/plugins/super-forms/uploads/php/files/02uu5j86e6pgta1s2birpprap7/25711232349.pdfIn PDF document text
    • https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bff28295cc6---15399793298.pdfIn PDF document text

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