Malicious PDF — malware analysis report

Static analysis result for SHA-256 50c34004b579a203…

MALICIOUS

PDF

64.0 KB Created: 2021-07-24 04:51:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: df0c9beb33a79ef1f2f335f5a87d4d3f SHA-1: 4566bc437426257fd84427e6d90906933a3f9b76 SHA-256: 50c34004b579a203ada1aa0e1be1d5e137b180d2b522193de5b7985e9411226d
124 Risk Score

Malware Insights

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

The PDF file contains a large number of links pointing to various websites, many of which appear to be compromised CMS uploads. The ClamAV detection 'Pdf.Phishing.Trojan-d2568dad23a94d95' strongly suggests a phishing or trojan distribution intent. The embedded links are likely used to lure victims to malicious sites, potentially for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.2704

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
  • 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 http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7b32a8bc9e---82764654141.pdf In PDF document text
    • http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e088f4cebd3---49369113676.pdfIn PDF document text
    • https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160a3d2a538730---setebubojitu.pdfIn PDF document text
    • https://pezenasenchantee.fr/userfiles/file/78444180391.pdfIn PDF document text
    • http://www.anjhimayath.com/upload/file/purezejutafupejomaxojud.pdfIn PDF document text
    • https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/tbu7c5v6a401nld3q8frlmgg0p/88187527917.pdfIn PDF document text
    • https://ruedi-leuthold.com/userfiles/files/labetobewojijuki.pdfIn PDF document text
    • http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ec4dbc55514---wezonuro.pdfIn PDF document text
    • http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/160809d9b7eb4f---65440691705.pdfIn PDF document text
    • https://designcoordinators.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607df9f46c481---29545959466.pdfIn PDF document text
    • https://profbuhotchet.ru/wp-content/plugins/super-forms/uploads/php/files/1346a57848699441a0cee4bb2d8742b8/14225798456.pdfIn PDF document text
    • http://casier-a-bouteilles.fr/file/lojidutuzixu.pdfIn PDF document text
    • http://sh-ruiyangcpa.com/userfiles/file/2021-7///20217304499051.pdfIn PDF document text
    • http://taxilitomerice.cz/ckfinder/userfiles/files/46206271227.pdfIn PDF document text
    • https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1606c6a2213dc8---zutaz.pdfIn PDF document text
    • https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1609957784acaa---21680543070.pdfIn PDF document text
    • http://memphiscentral1969.com/clients/865565/File/pufisadubuluxutigu.pdfIn PDF document text
    • http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073cb3fb26a5---medefazukekerese.pdfIn PDF document text
    • http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160883d252c80e---rewafategeb.pdfIn PDF document text
    • https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/0a3de0bc550fc9ff3b0293fb510ee40a/sekizukofuxigedepib.pdfIn PDF document text
    • https://www.endthestigmacounselling.com/wp-content/plugins/super-forms/uploads/php/files/f408lsarj971jmot8c1j4ujc6i/13298411493.pdfIn PDF document text
    • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609fdf21d3110---67236462429.pdfIn PDF document text
    • https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/029ddbe4f3b02bd64d4b762401862927/49859731517.pdfIn PDF document text
    • http://metabolit-plus.ru/files/file/vuwugoniwi.pdfIn PDF document text
    • http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/phm5pppm21k0rr41p80rfl75g4/56462900377.pdfIn PDF document text
    • http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ec436aa60ed---mewawosokes.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=what+does+arm+stand+for+in+azurePDF link annotation