Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b55b056f34e4b7e…

MALICIOUS

PDF

71.3 KB Created: 2021-06-26 16:58:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 0bd29c68931cc4fdfcaca879d700d2e2 SHA-1: e9e3a59f0207c3d752d76ff4ac25c912d9327ce7 SHA-256: 6b55b056f34e4b7e81d6cfd58529f5be6d3e9b8b8f42ce4b9c47950a12a1dac8
154 Risk Score

Malware Insights

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

The PDF contains a large number of links, many pointing to compromised CMS upload directories, indicating a link farm designed to host or redirect to malicious content. ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious intent. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6468

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://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16096cf5e673bd---51779390130.pdf In PDF document text
    • https://llibreriaha.com/img/events/file/32369025322.pdfIn PDF document text
    • https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/c0gvm3pa09hsb39bfs0qq5bkdt/2496708020.pdfIn PDF document text
    • http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/160cd17f54c559---83982445128.pdfIn PDF document text
    • https://www.scilights.com/wp-content/plugins/super-forms/uploads/php/files/48829cf43ef67a59b600fc60de265589/teduwowidevetukufiz.pdfIn PDF document text
    • https://sasalidayanisma.org/uploads/file/kiviwapun.pdfIn PDF document text
    • https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/ae1da85eed5917a1b13b57f4831db78a/4869615140.pdfIn PDF document text
    • http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160945db50f6eb---67518383391.pdfIn PDF document text
    • http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160ad5ace7e59a---23403016975.pdfIn PDF document text
    • https://srldirect.com/ckfinder/userfiles/files/92082521334.pdfIn PDF document text
    • http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/160c330e87067a---46978071093.pdfIn PDF document text
    • http://koszyczarek.pl/userfiles/file/gebiv.pdfIn PDF document text
    • http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/f0ea1faeb0c81c76e5f3be0e67ceab32/wufefavoxozej.pdfIn PDF document text
    • https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/f2938b312c893af58ae8247069fc8756/72433117788.pdfIn PDF document text
    • https://www.chartsunlimited.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160b2b1e57180d---92854396401.pdfIn PDF document text
    • https://afd.me.uk/wp-content/plugins/super-forms/uploads/php/files/2oru5elpj6fv12i65gtijv11qb/jodigo.pdfIn PDF document text
    • http://au-zlato.sk/upload/files/3674433964.pdfIn PDF document text
    • https://www.sadcmedia.com/wp-content/plugins/super-forms/uploads/php/files/k6559knf7n57hderfvjvc42dlg/bigimijonabifokinu.pdfIn PDF document text
    • http://sghscsjamarai.org/guruhargobind/userfiles/file/fepapanuzotekogoto.pdfIn PDF document text
    • https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/d8836d58833314a5679e9f383c7956b5/66941852045.pdfIn PDF document text
    • http://pcmcpropertyblog.com/wp-content/plugins/super-forms/uploads/php/files/6d036153675a1a7210ee1680751523a3/danifoxujole.pdfIn PDF document text
    • http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f68ea277da---33276919927.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=2+types+of+eclipsePDF link annotation

Open this report in the interactive analyzer, or submit your own file for analysis.