Malicious PDF — malware analysis report

Static analysis result for SHA-256 d68115d224fbcce1…

MALICIOUS

PDF

67.8 KB Created: 2021-09-19 11:51:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: e7156b14616690a9c1e7ed6fbd4c6bdb SHA-1: 7fbeb6371a6b0cb2a02f8f514b9d6103830b602e SHA-256: d68115d224fbcce1231e067b430cc17e66c42ccef5f54653d2b45062cef65cc0
124 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV, indicating a phishing or trojan threat. It contains a link farm pointing to compromised CMS uploads and disposable hosting, suggesting an attempt to redirect users to malicious content. The presence of multiple PDF links and the use of 'utm_term' parameters in some URLs further support a phishing or malicious download lure.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.2621

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://hibertek.com/image/files/20210901_194731.pdf In PDF document text
    • http://przychodnia-felinskiego.pl/uploads/editor/file/32220332747.pdfIn PDF document text
    • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130788ea9618.pdfIn PDF document text
    • http://www.look4job.gr/images/_user_na/file/27126643696.pdfIn PDF document text
    • https://htapigroup3.com/contents/files/90320224132.pdfIn PDF document text
    • https://tahitotfalu.hu/ckfinder/userfiles/files/saxurajititerope.pdfIn PDF document text
    • https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cf0790e5a9---nekamuzetosipax.pdfIn PDF document text
    • http://annassteen.com/ckfinder/userfiles/files/dudepufuletopugalirini.pdfIn PDF document text
    • https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135fbec66121---85997558809.pdfIn PDF document text
    • http://geodavidepini.it/userfiles/files/tekuwezorikam.pdfIn PDF document text
    • https://liho.cz/UserFiles/File/terujofev.pdfIn PDF document text
    • http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130688ca1554---63529546538.pdfIn PDF document text
    • http://www.gonouvellezelande.com/files/11343969654.pdfIn PDF document text
    • https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/161352a6a28bfd---wovikijotijapizuxawekazep.pdfIn PDF document text
    • http://www.fan-consultants.com.tw/ezadmin/ckfinder/userfiles/files/nemol.pdfIn PDF document text
    • http://kleinschadenexperte.com/userfiles/file/3951361555.pdfIn PDF document text
    • http://phonphangschool.com/upload/files/nutenoribamib.pdfIn PDF document text
    • http://doggystylzgrooming.com/admin/photos/file/93919443147.pdfIn PDF document text
    • http://rigosarchitects.gr/userfiles/file/93298873280.pdfIn PDF document text
    • https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613d1d6dcc265---49814676751.pdfIn PDF document text
    • http://amblesidewindermere.ca/fckuploads/images/file/barulebusuzisewafewene.pdfIn PDF document text
    • http://meghdoothsuzuki.com/uploads/mebatewefesopakabon.pdfIn PDF document text
    • https://inprovituruguay.com/ckfinder/userfiles/files/jixekemadefanewu.pdfIn PDF document text
    • http://www.roosprommenschenckelfoundation.nl/ckfinder/files/files/wojule.pdfIn PDF document text
    • http://wacommerce.net/home/integrity/public_html/ckfinder/userfiles/files/zovusozexatiwote.pdfIn PDF document text
    • http://se-ty.com/uploads/userfiles/file/fokasebaf.pdfIn PDF document text
    • http://seoulsquare.com/userfiles/file/sekadatitupawokofejaje.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=avatar+full+movie+downloadPDF link annotation

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