Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0619dcd8a007944…

MALICIOUS

PDF

72.6 KB Created: 2021-08-03 22:57:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-02
MD5: b4da68d13f7aad36e153edae6db65fe4 SHA-1: 565436c278e3167c7c0657938f2ade1a3bbbe4db SHA-256: d0619dcd8a00794481fed18562dea7f68eddf6ff27b00756e36eb23091a57022
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file contains a large number of external links, many of which point to websites hosted on compromised CMS platforms or disposable hosting. The ClamAV detection and ML classifier indicate a high likelihood of malicious intent, specifically phishing or malware distribution. The file's structure suggests it is designed to lure users into clicking links that lead to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9720

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://akproauto.com/nbloom/fckuploads/file/81290812437.pdf In PDF document text
    • https://lesartsdansmonjardin.com/userfiles/file/20210621000430.pdfIn PDF document text
    • https://alihuata.com/userfiles/file/31286357113.pdfIn PDF document text
    • http://creativeindustries.ru/uploads/userfiles/file/61541241256.pdfIn PDF document text
    • http://chsbicentennialclassof1976.com/clients/c/c2/c283bfa2537a82fb79a670aa087b4bd4/File/82698909802.pdfIn PDF document text
    • http://alfavit.tv/userfiles/file/kovowa.pdfIn PDF document text
    • http://vina2002.com/uploads/files/12982988695.pdfIn PDF document text
    • http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/16104d7f9401fa---22978611814.pdfIn PDF document text
    • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e08d5ee1db5---9685105811.pdfIn PDF document text
    • http://axwelindia.com/uploads/24879078501.pdfIn PDF document text
    • https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/e2eccd8b14cde79667faf76dea5816fc/lazek.pdfIn PDF document text
    • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160fa0309e7cad---gujok.pdfIn PDF document text
    • http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c557eb9b77a---41679446324.pdfIn PDF document text
    • https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/334f9e9db6351ac8e6a1fba19e250e12/totagejenawodejoso.pdfIn PDF document text
    • http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160777a5cc38ec---papepasotipiza.pdfIn PDF document text
    • https://notofthisgalaxy.com/wp-content/plugins/super-forms/uploads/php/files/a5j0gs52f12nti1jqb38t4cmrv/65290327788.pdfIn PDF document text
    • http://creative-format.com/upload/editor/files/regesosipobutoni.pdfIn PDF document text
    • https://principesgs.com/userfiles/file/52242473223.pdfIn PDF document text
    • http://bindashnews.com/userfiles/file/9858247826.pdfIn PDF document text
    • https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b8b83c223d0---tovowugutitenuwosuwili.pdfIn PDF document text
    • http://webelievedin1984.com/clients/6/67/676624d6593aa512bfa6e10e765af00e/File/88943106638.pdfIn PDF document text
    • http://botanicgardenscafe.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b5c0a1010c9---biradafofisolitejimati.pdfIn PDF document text
    • https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/16078b34160477---vojirawigonivazalitedori.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=does+fat+reducing+cream+workPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f6c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6C9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1