Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e0c848a1e5d64bc…

MALICIOUS

PDF

62.3 KB Created: 2021-09-09 08:12:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 2ccc55ecba2f8ebe59b5a22e5022cf0e SHA-1: 8f71e19bbd36b999f3125f5dcba5d37b20ef6c0a SHA-256: 9e0c848a1e5d64bc3c2d8a6cd21269b568205375fd06abd413b9690756aabe57
154 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan-like behavior. It contains a link farm pointing to multiple domains, some of which are hosted on compromised CMS uploads or disposable hosting, suggesting an attempt to distribute further malicious content. The presence of a 'utm_term' parameter in one URL indicates a potential SEO-based lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8923

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://tgvl.in/uploads/fck/files/guzufesuwalij.pdf In PDF document text
    • http://kaztelcom.kz/ckfinder/userfiles/files/37814574009.pdfIn PDF document text
    • http://yh-nutri.com/filespath/files/20210904185121.pdfIn PDF document text
    • https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/2682a70109f1778e815f4295e869fc47/32251765090.pdfIn PDF document text
    • http://augustaelectricalwork.com/editorData/file/38222266319.pdfIn PDF document text
    • http://ilkjv.com/Images/Media/files/63778306915.pdfIn PDF document text
    • http://espaciocultivarte.com/ckfinder/userfiles/files/rogosiwif.pdfIn PDF document text
    • https://nutricount.cz/UserFiles/File/98897725003.pdfIn PDF document text
    • https://ndmoyun.com/calisma2/files/uploads/vuditixefome.pdfIn PDF document text
    • https://nabsangram.com/userfiles/file/lamikituwofejadebutuja.pdfIn PDF document text
    • http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613703e526fe7---leziripakiro.pdfIn PDF document text
    • https://cuatudongsaigon.vn/uploads/files/66524456231.pdfIn PDF document text
    • http://www.nachtruhe.info/up/files/masidalekisogewipujuwoda.pdfIn PDF document text
    • https://valeaflorilor.ro/img/uploads/file/panimafodore.pdfIn PDF document text
    • http://fabtur.ru/upload/files/vebixinoje.pdfIn PDF document text
    • https://pass-eco-energies.com/ckfinder/userfiles/files/gawaf.pdfIn PDF document text
    • http://ig-einheitsloks.de/medien/file/ximuwusexi.pdfIn PDF document text
    • https://myphi.biz/nbloom/fckuploads/file/1330373756.pdfIn PDF document text
    • https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/0d3c8ae6e4e7c10b9d82e96fcb4bfcee/jepivova.pdfIn PDF document text
    • http://xn----ftbkdcamitb5h.xn--p1acf/files/fck/file/58781795616.pdfIn PDF document text
    • http://insfilings.com/skyzone_classic/upload/files/77595496275.pdfIn PDF document text
    • http://sushimura1.com/uploads/files/36606299141.pdfIn PDF document text
    • http://gdgom.com/upload/file/210908200639994225orx1dg3h0th8.pdfIn PDF document text
    • http://mateuszkucharski.pl/admin/file/tujukinikoxagawugab.pdfIn PDF document text
    • https://itchanoi.vn/uploads/news_file/firebokevusekuzo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=the+dreamers+full+movie+downloadPDF link annotation

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