Malicious PDF — malware analysis report

Static analysis result for SHA-256 197a69225629070d…

MALICIOUS

PDF

73.6 KB Created: 2021-06-08 20:09:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 25f36cf18b33ec748f5d267d352d68ae SHA-1: 47d89e14502343ba5071570a596ed63fc0387a0e SHA-256: 197a69225629070d54fc746e960a82fd42112d0b8b10bc345c049366a98ea268
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document is classified as malicious, exhibiting characteristics of a phishing lure. It contains numerous links, many pointing to compromised WordPress sites, suggesting an attempt to distribute further malicious content or redirect users to phishing pages. The primary lure appears to be a fake movie download link, designed to trick users into clicking on malicious URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://infrive.ru/uplcv?utm_term=harry+potter+and+the+prisoner+of+azkaban+full+movie+online PDF link annotation
    • http://ampletrekking.com/userfiles/file/vuzemafemalitefo.pdfIn PDF document text
    • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/962sjf3phd3lj5ql64cto7ks5u/vunul.pdfIn PDF document text
    • https://canadiancontractorservices.com/wp-content/plugins/super-forms/uploads/php/files/ah3qh1iihtmafoovnntl6hull3/27932830491.pdfIn PDF document text
    • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2de629d77a---85486532575.pdfIn PDF document text
    • http://aiswaryamatrimonials.com/fck_uploads/file/13748799542.pdfIn PDF document text
    • http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/789eda53edd5624f573e2e65390e61d2/32841608102.pdfIn PDF document text
    • https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/a9522417e356eb17a6f0078e4caa6646/majifotiwemomorona.pdfIn PDF document text
    • https://llibreriaha.com/img/events/file/nobuviratoxe.pdfIn PDF document text
    • http://alituncer.com/userfiles/file/limutidopijogewuzofexug.pdfIn PDF document text
    • https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/aslfkhp7edufckg76su2nmt45d/vunuxinodoxavoteponexon.pdfIn PDF document text
    • http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608272caeedfc---49207428855.pdfIn PDF document text
    • https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/bcaeda694e038c28f502c33e37e058e6/xisiwokakovobunoret.pdfIn PDF document text
    • https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/98ccb5424cba407b4f8a3664c78a6f7e/bomunelugenoro.pdfIn PDF document text
    • http://ersatzmonitor.de/userfiles/file/magekodizegujuzebu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000df5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF5F 5660 bytes
SHA-256: 83d94deb6012ec4c310f578c018d06af85814a41286986ea1ce517957c6d95bd
font_01_sfnt_off0000f27f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF27F 11364 bytes
SHA-256: 22f5eeb293772902e943bf0462d884c2d60215e46e668df313286b335034b0cb

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