Malicious PDF — malware analysis report

Static analysis result for SHA-256 8802cd70010bc8d8…

MALICIOUS

PDF

61.3 KB Created: 2021-08-16 09:20:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: b8e409aabd4620d4bbc90f934136699e SHA-1: 95f901f44a8e6d63d8146993605cc2acdaff264f SHA-256: 8802cd70010bc8d83bbf6e5f0ea635099b007eca0b501ffe4d93f27204f58ea9
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to compromised CMS upload directories, suggesting it's designed to lead users to malicious content or phishing sites. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded links are indicative of a phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9548

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://www.aifimm.it/admin/inc/ckfinder/userfiles/files/junuwerotatukifuloxalem.pdf
    • https://marmarases.com/upload/ckfinder/files/tomijakoguzenikefu.pdf
    • http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c064cb2475a---85206944758.pdf
    • http://kristenpell.com/userfiles/files/89196602933.pdf
    • http://cokhibaosang.com/media/ftp/file/wedenajubupupu.pdf
    • http://popeyebio.com/upload/files/94619171167.pdf
    • http://recit-de-vie.fr/userfiles/file/pukolavogisirub.pdf
    • https://parklanehotel.asia/userfiles/file/vobagusudovuvaveboliru.pdf
    • http://www.neocota.com/fckimages/file/95554338076.pdf
    • http://101eyewear.com/luutru/files/zadanuwururapikupebuk.pdf
    • https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/f75225680323560dfad2782424a3627c/50416876124.pdf
    • https://aftaplan.com/works/peepsparty/html/upload_files/file/bikujozenufunuboburo.pdf
    • http://fd-health.com/upload/ckeditor/files/36531281689.pdf
    • http://masan315.net/board/imagefile/file/47569932832.pdf
    • http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16070045e33168---87015189104.pdf
    • http://af.ssla.ru/images/fornews/files/kavuvanituxajez.pdf
    • http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/f38fe0ffd75d3e3c8672c7a98f8f9945/papupenukulusijalesase.pdf
    • https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c82925f9ae---41187188187.pdf
    • http://hoaisonland.vn/upload/files/sefoxesuvepobur.pdf
    • https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/16109a232ab6c3---sumid.pdf
    • http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610bb6808c2da---51922272108.pdf
    • https://people11people.gr/uploads/File/17917998545.pdf
    • http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609fd716968bd---gupadisaz.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=insanity+workout+t25+free+download

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