Malicious PDF — malware analysis report

Static analysis result for SHA-256 11ff46ee80f51c5f…

MALICIOUS

PDF

40.1 KB Created: 2021-09-07 04:44:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 92af3188380ed4906db61d98531a085e SHA-1: 62cb98bd775d8627e4775389aa0e28339f605e92 SHA-256: 11ff46ee80f51c5f09854951f261eeeae905777a1ff69e273d144b036d60dc04
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing lure. It contains numerous links to potentially compromised WordPress sites, suggesting an attempt to redirect users to malicious content or download further stages. The heuristic 'PDF_IMAGE_LURE' indicates the document is designed to appear as an image, hiding clickable elements that likely lead to the embedded URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8821

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 40 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://www.travelticket.com.au/wp-content/plugins/super-forms/uploads/php/files/7scgal4mcm2vt2007s8etcdpf4/17610505730.pdf In PDF document text
    • https://renault-service.com/userfiles/24990098877.pdfIn PDF document text
    • http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a3ab27a7b17---jedurebawi.pdfIn PDF document text
    • https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a1c8cdd433e---rixixabuvurenikibibapow.pdfIn PDF document text
    • https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607e74e862220---gitixikagovoleduxituxer.pdfIn PDF document text
    • https://alarrabnews.com/images/content/content/file/dipulutugovukozo.pdfIn PDF document text
    • https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/f69d660ca00a239d4a4cb53e71df5658/bulonanubawibegukazupa.pdfIn PDF document text
    • https://petala.gr/userfiles/file/fowizosizowu.pdfIn PDF document text
    • http://industrialdevices.in/uploads/jivunux.pdfIn PDF document text
    • http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/16099cd6f8e3d0---kavitujarofopata.pdfIn PDF document text
    • http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608e729941c06---rinemogetiwoledoxibixa.pdfIn PDF document text
    • http://struttur-arch.it/userfiles/files/13003990195.pdfIn PDF document text
    • https://endoaccessories.com/wp-content/plugins/super-forms/uploads/php/files/186om1uhultn2kngvdv2mj7nhg/dusodem.pdfIn PDF document text
    • https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/f7e9a0c79187b0352c762ea1f9994f26/7835060473.pdfIn PDF document text
    • https://dixietemporarystorage.com/wp-content/plugins/super-forms/uploads/php/files/d24dbdc385aaee54435959457f59e823/83042969535.pdfIn PDF document text
    • https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/84a5c2fbf3094daed55a4f1f15a8da06/dumanawarojolakikazot.pdfIn PDF document text
    • http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608113efd5e6b---sonelomepiluwupawa.pdfIn PDF document text
    • http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606cIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=modificare+pdf+su+macbookPDF link annotation

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