Malicious PDF — malware analysis report

Static analysis result for SHA-256 abdd544a01aa2e4d…

MALICIOUS

PDF

40.4 KB Created: 2021-09-27 12:11:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: ab12d79d837f92a1e21394a3ae253c5c SHA-1: c911b2c5e8d46ecc62a0c1ad3ecb37e1fcfe2f52 SHA-256: abdd544a01aa2e4d8d17c0fa17462305c314f4c0d111de3326848a8fa5d91daa
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to various domains, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery. No scripts were extracted, but the PDF structure itself is indicative of a malicious lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7976

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://crewmak.ru/uplcv?utm_term=what+is+the+collective+noun+of+policemen PDF link annotation
    • http://cattaneoarchitetti.it/userfiles/files/xozonakulikij.pdfIn PDF document text
    • http://holzbau-napetschnig.at/rijomokifidukikagi.pdfIn PDF document text
    • http://oumkua.com/userfiles/file/69497238398.pdfIn PDF document text
    • https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/d77fefeddf87fed541b9dc709c782f3d/98019152085.pdfIn PDF document text
    • https://cet.sk/res/file/kunoxuzaripusi.pdfIn PDF document text
    • http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b6d60f2bee---2338603690.pdfIn PDF document text
    • http://hoaisonland.vn/upload/files/16116491423.pdfIn PDF document text
    • http://gazduire-domeniu.com/UserFiles/file/judizu.pdfIn PDF document text
    • http://tdbakademi.org/userfiles/files/99287819829.pdfIn PDF document text
    • https://consultemergingmarkets.cubsindia.com/files/lezadedolukemekefit.pdfIn PDF document text
    • https://trimix.bg/UserFiles/File/tabis.pdfIn PDF document text
    • http://prepearl.com/uploadsfile/nazunitojuzikaga.pdfIn PDF document text
    • http://salman-is.com/userfiles/file/kamidawe.pdfIn PDF document text

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