Malicious PDF — malware analysis report

Static analysis result for SHA-256 be7e396254410176…

MALICIOUS

PDF

42.1 KB Created: 2021-05-17 23:38:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 9e3e14f07bde75568fe7843f887bf787 SHA-1: 5106144f4b773aac7f9c1445cc45f09b60db1032 SHA-256: be7e396254410176e587a5046b0be85cf7bd6f3c4ccbac8d12591728bdd3586f
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its image-only nature and embedded clickable links. Several heuristics indicate it's a link farm hosted on compromised CMS uploads, likely directing users to malicious content. The ML classifier and ClamAV detection strongly support its malicious classification. No scripts were extracted, but the PDF structure itself suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9297

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 42 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://bodwellassociates.com/wp-content/plugins/super-forms/uploads/php/files/b99be44afd15109ae8de9c5fa77ccdbf/fajixa.pdf In PDF document text
    • http://amuseonline.com/absite/userfiles/file/sapojutox.pdfIn PDF document text
    • http://abpaluso.com/upload/file/41427248180.pdfIn PDF document text
    • https://mfdesign.hu/files/file/nanudotatubugebo.pdfIn PDF document text
    • http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b93d041497---40123256755.pdfIn PDF document text
    • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/160854256ea9bd---82794360321.pdfIn PDF document text
    • https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/7a03fbb4f7cd322cbd81adf540f1ca70/zepawo.pdfIn PDF document text
    • https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/f83a173db0a5847901a6ceb315ba2a4e/58645642802.pdfIn PDF document text
    • https://medtek.vn/storage/file/36644816951.pdfIn PDF document text
    • https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/6de44893cff8183eb5e1b0f0f5492acd/82663602694.pdfIn PDF document text
    • https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fd2364d9b7---35547433449.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca6810ff63---26018204990.pdfIn PDF document text
    • http://samuiluxurytravel.com/Uploads/file/28693653781.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=euro+truck+simulator+2+bus+mod+apk+free+downloadPDF link annotation

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