Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcd9daafa7a53cd0…

MALICIOUS

PDF

58.7 KB Created: 2021-05-05 18:17:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 794f35fbe9b41cb05422e915c44ffbcc SHA-1: 0e96e2654b1dbdbf6bc34b69ed6c48b639721858 SHA-256: fcd9daafa7a53cd074ebd2c18b90869d055c163d3f46806b3d3a88c1dd040599
154 Risk Score

Malware Insights

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

The PDF file contains a large number of links, many of which point to compromised WordPress sites. The ClamAV detection and ML classifier indicate malicious intent, likely phishing or malware distribution. The presence of a link farm on disposable hosting further supports a malicious purpose.

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 https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/160724fb893c76---51346821882.pdf
    • https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca0abbea8d---fadenetevi.pdf
    • http://akcjonariusz.com/UserFiles/file/kunurafitosutepodig.pdf
    • https://www.finestkindcharter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160705793ef846---motabupitolekezawed.pdf
    • https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/8890ab59516c699b076f2dd7cf10bbae/29953086505.pdf
    • http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160799d71030e5---vuzegatonokudi.pdf
    • http://maidnheaven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fb8f931196---93182119048.pdf
    • http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7fcd0a3e8---zojire.pdf
    • http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608261a79b71c---69993528099.pdf
    • http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084a4506ac8e---bepusujakisamedi.pdf
    • https://www.wflorlando.com/wp-content/plugins/super-forms/uploads/php/files/3062e71243f8f75edf64827f66e112a0/xesolowelijuzowala.pdf
    • http://www.apsetedavisi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bcf598ba80---betesatumakeme.pdf
    • https://asaptransfers.co.uk/wp-content/plugins/super-forms/uploads/php/files/taho1qdt2v4asmprqjlrml24h4/97247952066.pdf
    • https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/6bd72b0372923ad0e951b7a115891669/96193819822.pdf
    • https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/d726b866b876a40c593b5ccb9b2cc503/57739218806.pdf
    • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce60293a0d---nebuvutaw.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=salesforce+marketing+cloud+ampscript+guide

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