Malicious PDF — malware analysis report

Static analysis result for SHA-256 be4ccc188182a623…

MALICIOUS

PDF

62.5 KB Created: 2021-08-06 00:52:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 7f9f0863d6ba2784f99c06a923b07d02 SHA-1: 145bab77c976f707fb09d3775bd85ed5001ceb39 SHA-256: be4ccc188182a62321557cdbeb19d55de5c3141b19eba1e1483ef61260149121
124 Risk Score

Malware Insights

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

The sample is a PDF document identified by ClamAV as a phishing trojan. It functions as a link farm, containing numerous URLs that point to various domains, many of which appear to be compromised or disposable hosting. The primary purpose seems to be directing users to external content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3485

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 https://hinodanang.com/uploads/image/files/35222258578.pdf In PDF document text
    • http://agriturismoilnoceto.com/userfiles/files/mulavoxusatonewi.pdfIn PDF document text
    • http://worldofpacifiers.com/editor_uploads/system/files/99950185567.pdfIn PDF document text
    • https://imaggu.com/ci/userfiles/files/41428637619.pdfIn PDF document text
    • http://alt-1c.ru/userfiles/file/favulewukonofalasul.pdfIn PDF document text
    • http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160f34ba9ee702---sefuteropowewuj.pdfIn PDF document text
    • http://notariocprietoa.com/notaria/documentos/files/89541841414.pdfIn PDF document text
    • http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/472d1762b634370464e127296a22c26e/87206814948.pdfIn PDF document text
    • http://indemo.pl/Image/files/fasexubesameradonifejej.pdfIn PDF document text
    • http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/0c5a0e5e7fb6eab728ed47d4a3451cff/64006469342.pdfIn PDF document text
    • http://svenstavik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070b217816d6---devimaxapogonilusamu.pdfIn PDF document text
    • https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2f491e36d9---sozuzawibixogus.pdfIn PDF document text
    • https://52fantasies.com/home/holly/public_html/ckfinder/userfiles/files/tenikobonaz.pdfIn PDF document text
    • https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608a80bcae4e5---68998229553.pdfIn PDF document text
    • http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/pp88bss1c246hnm3nhm5hk9uin/vajuwabenowunamot.pdfIn PDF document text
    • https://insights3.com/wp-content/plugins/super-forms/uploads/php/files/0c8bc1566e034503fedef1fe63a7955e/nomulunifamujesukigizu.pdfIn PDF document text
    • http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/e3a87e427dba598386ca25fe0ebfc3ee/63742291756.pdfIn PDF document text
    • http://acpiindia.com/userfiles/file/24525848966.pdfIn PDF document text
    • http://bafiti.com/sklep/userfiles/file/xukowexon.pdfIn PDF document text
    • https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/fujuag1t6ch2krl0lu9sl9l4f1/fijurekoxazixebe.pdfIn PDF document text
    • https://steklo-shik.ru/userfiles/file/54794757492.pdfIn PDF document text
    • https://jetaime-shop.com/files/305567928.pdfIn PDF document text
    • http://stsaischoolamritsar.com/slbdavbatala/userfiles/file/50405454517.pdfIn PDF document text
    • http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1606cf887be523---fivaxubesixevo.pdfIn PDF document text
    • https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/27a50287ce787f524f3bfb9d46eda922/35936715929.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=aqa+gcse+physics+equation+sheet+2017PDF link annotation
    • https://mediaget.com/userfiles/files/88596580801.pdfIn PDF document text