Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cba69bcdd58de6b…

MALICIOUS

PDF

63.7 KB Created: 2021-09-03 22:57:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 336163b03602daaf92adf6b6680bbb5c SHA-1: bafa4d733e352d3e016efa368ba06c5c6af142ff SHA-256: 2cba69bcdd58de6b97615857556bb802f0dd94916e9dbd16485ff79a90879920
154 Risk Score

Malware Insights

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

The file was detected by ClamAV as Pdf.Phishing.Trojan and ML classifiers also flagged it as malicious. It contains a link farm pointing to multiple compromised WordPress sites and disposable hosting, suggesting a phishing or scam attempt. The document body is heavily obfuscated and unreadable, providing no further context on the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6381

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 https://wastran.ru/uplcv?utm_term=eviction+letter+template+pdf
    • https://www.indee-r.fr/wp-content/plugins/super-forms/uploads/php/files/a936d63375e2841f26c0ba66edd7aa74/53698276414.pdf
    • https://secolink.sk/userfiles/file/47084165957.pdf
    • http://upservice.expert/admin/ckfinder/userfiles/files/lerujexu.pdf
    • https://ietc-oman.com/userfiles/files/34696712033.pdf
    • http://ippon.lv/uploads/File/pujirumawoxabazegawujexad.pdf
    • http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160f88459620d2---2971914785.pdf
    • http://www.agenbenangbandung.net/file/65258257828.pdf
    • https://pacantioquia.org/aym_image/files/93437075462.pdf
    • https://vas-vill.hu/userfiles/file/36809692997.pdf
    • https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/be0e69c96195a30a100209e588d16b97/38210123214.pdf
    • https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160b37a78aa6bd---vitelegogiwibodomuligagas.pdf
    • http://chhsmahs.com/clients/8/83/83f479e57a8bbaec88b4a04d821ef24e/File/29390842064.pdf
    • http://ipost.mn/ckfinder/userfiles/files/kumemadaduladimalorijujuf.pdf
    • http://tfh-filter.hu/_user/file/pefomugeditiwe.pdf
    • http://sllight.ru/design/img/upload/file/zavene.pdf
    • https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/k7jkeosscks75h9uj5efpl9q8e/17070089166.pdf
    • https://zemiigori.com/uploads/file/gufuvizov.pdf
    • http://driver-jazda.pl/upload/file/dojozeneliba.pdf
    • http://buyyoutubecomments.com/ci/userfiles/files/92884735510.pdf
    • http://hyunbulsa.org/~ewedd2/userfiles/file/perujosoweludejijoz.pdf
    • https://alasclub.gr/neuro/ckfinder/userfiles/files/44219237629.pdf
    • http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6ce3539bfa---tonudeten.pdf
    • http://graviroz.hu/ckfinder/userfiles/files/7980794308.pdf
    • https://leesman.com/wp-content/plugins/super-forms/uploads/php/files/1a7669c42622dc7a2d1a869c4781c9fb/rozadopibesoxotexepod.pdf

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