Malicious PDF — malware analysis report

Static analysis result for SHA-256 1de6ff4bbad6f6e8…

MALICIOUS

PDF

56.6 KB Created: 2021-09-22 23:49:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 23c9c272707c449304c2827b39d66ea6 SHA-1: 2a8c195ba76246584e64952f04ac08493e7bee9a SHA-256: 1de6ff4bbad6f6e878e8dbdce55d4ae8648cb25b7ba0f889a1764ec89a3e464f
154 Risk Score

Malware Insights

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

The PDF contains numerous external links, many of which point to URLs hosted on compromised WordPress sites or other disposable domains, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery through these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7337

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 http://multi-accueil.fr/ressource/site-image/files/jagubi.pdf
    • https://daiichitravel.com/uploads/news_file/wineporurutule.pdf
    • http://xecuoihuyhoang.com/uploads/userfiles/file/96971531694.pdf
    • http://stihoplet.by/upload/editor/files/88595456112.pdf
    • https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/161398491ae855---63059185699.pdf
    • https://sacc-la-chaux-de-fonds.ch/fichiers/file/37149945968.pdf
    • http://krzysztofmalec.pl/gfx/fck/file/75025759727.pdf
    • https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/rrraoha6l3dn4k8j7i35k0pph6/jojuxetulizilujo.pdf
    • http://wami.cc/data/files/monajozaf.pdf
    • https://www.pharmawell.eu/ckfinder/userfiles/files/42663373344.pdf
    • http://nhakhoauytinhaiphong.com/upload/files/jusanapopupuvuvakixaza.pdf
    • https://warungmimpishio.com/contents/files/guxexosubanevisujarifis.pdf
    • https://alaskaproauto.net/nbloom/fckuploads/file/mewelubu.pdf
    • http://icaalliance.org/filespath/files/20210901132143.pdf
    • http://saigonford3s.com/uploads/2021-09-01/images/files/sofazemijaw.pdf
    • http://studiosantomauro.it/userfiles/files/vutave.pdf
    • http://kd-council.com/upfile/files/28676301336.pdf
    • http://antwerp-reefer-tournament.be/argt/files/17135785097.pdf
    • http://ltptech.vn/uploads/userfiles/file/dilupigugarurixenugeki.pdf
    • http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1612fb902b9ac7---foxudufelamipuwomedub.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=the+law+of+evidence+batuklal+pdf

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