Malicious PDF — malware analysis report

Static analysis result for SHA-256 03114eda8f2f55e5…

MALICIOUS

PDF

47.6 KB Created: 2021-09-23 18:21:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: 8708a8de4aa4fb5dead73353b6ea489f SHA-1: f1c4c85610690c50d3a08a223b3eb29198048117 SHA-256: 03114eda8f2f55e592b2d3afae7a6ac2e665de4fa04476a575dbc13fd354ad25
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and numerous external URIs, many of which are hosted on disposable domains and appear to be part of a link farm. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or distributing further malware. The embedded JavaScript is a common technique for exploiting PDF vulnerabilities or redirecting users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6210

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
  • 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://chcial.ru/uplcv?utm_term=smart+iptv+apk+download+for+android+box PDF link annotation
    • http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132e319d22dd---31130789551.pdfIn PDF document text
    • http://www.galiantsolutions.com/emailimages/file/60904323235.pdfIn PDF document text
    • http://artanuji.ge/admin/ckeditor/ckfinder/userfiles/files/59657927313.pdfIn PDF document text
    • http://safeabortionnepal.com/userfiles/file/pamabaxawilazoxad.pdfIn PDF document text
    • https://hw-power.com/uploads/ckfiles/files/6149283be6718.pdfIn PDF document text
    • https://la-klamm.org/Files/files/53646908448.pdfIn PDF document text
    • http://huthamcauquanggiap.com/upload/files/73023812004.pdfIn PDF document text
    • http://tanabuauto.com/js/upload/files/wexon.pdfIn PDF document text
    • http://datavincity.com/uploads/ckfinder/files/pisomitipuxonibigixodix.pdfIn PDF document text
    • http://philboyd.com/19727920387.pdfIn PDF document text
    • http://kiszelyugyvediiroda.hu/docs/file/gazenesabisozuvegube.pdfIn PDF document text
    • https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16133b8a4b6987---nawizuzufinepekidete.pdfIn PDF document text
    • http://chugguwang.com/files/fckeditor/file/54238387264.pdfIn PDF document text
    • http://nktrading.qa/file/files/pujibaduwitapuke.pdfIn PDF document text
    • https://apz-arte.com/ckfinder/userfiles/files/fubolureremari.pdfIn PDF document text
    • https://acavacecio.it/userfiles/files/29196383570.pdfIn PDF document text
    • http://bettaletroom.com/file_media/file_image/file/revegitidolibulexaj.pdfIn PDF document text
    • http://ladyqueen.it/userfiles/files/xotumadatopa.pdfIn PDF document text
    • http://araratmebel.ru/img/file/91123579513.pdfIn PDF document text
    • https://ilonew.tasksplan.com/userfiles/files/vinakilededarobovabar.pdfIn PDF document text
    • http://gryfarmerskie.pl/pliki_wyswig/files/82292597328.pdfIn PDF document text
    • http://kcpsystem.com/userData/board/file/65365185794.pdfIn PDF document text
    • http://michardardillier.com/ckfinder/userfiles/files/39918648335.pdfIn PDF document text
    • http://supermarketdv.ru/files/file/bufasozalerejimezakox.pdfIn PDF document text
    • http://jarauwerdaenzn.nl/userfiles/file/riremisaj.pdfIn PDF document text
    • http://denis-lefebvre-services.com/fichiers/file/45644310326.pdfIn PDF document text

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