Malicious PDF — malware analysis report

Static analysis result for SHA-256 febc67009f114f30…

MALICIOUS

PDF

94.4 KB Created: 2021-08-03 06:57:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: f2248128d470c75770c3d6bc133a8b74 SHA-1: f1e5a058f7597427bfb408ed071781cadc07e448 SHA-256: febc67009f114f30516127793f75c795ea3ea3d13d993958d04dbfdef48132b1
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous links to external websites, many of which are hosted on compromised WordPress sites or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5999

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://nomylo.ru/uplcv?utm_term=resumen+de+la+divina+comedia+de+dante+alighieri+por+capitulos PDF link annotation
    • https://www.axelendinggroup.com/wp-content/plugins/super-forms/uploads/php/files/2ddbaad3ff5ef688de3726a92152ae3a/guvuwapiferivefig.pdfIn PDF document text
    • https://erdemlerkoleji.com/resimler/files/puveditakufuwa.pdfIn PDF document text
    • https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/4df8eeef79bfb13d10bb5e237a6a1fd8/97256909297.pdfIn PDF document text
    • http://haiphongcontest.com/images/files/diloperadide.pdfIn PDF document text
    • http://www.sevenchurchestour.net/seven/wp-content/plugins/formcraft/file-upload/server/content/files/160c200efde0af---bulojevirogulozoputox.pdfIn PDF document text
    • https://amrapalispot.com/userfiles/file/vaborezap.pdfIn PDF document text
    • https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/d6b5b305306424a8b4bc726200fa7cd3/lajixefosifobuvetegebi.pdfIn PDF document text
    • https://ladangmimpi2.com/contents//files/babozodozagulurix.pdfIn PDF document text
    • http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/160fa06ae63cf9---20855722866.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160841e2c9ce23---rezuvore.pdfIn PDF document text
    • https://cjsc.se/ckfinder/userfiles/files/nubazemisoxilomona.pdfIn PDF document text
    • http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be013e30daf---56270746306.pdfIn PDF document text
    • https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/7fa3bc75311fe8fc4202aca855b850db/41440436330.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081831a2b7b6---segilimulolebewi.pdfIn PDF document text
    • http://auxerretv.com/content/public/file/85092449969.pdfIn PDF document text
    • https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d185963d92---kejozofifepefoberalowe.pdfIn PDF document text
    • https://stopserv.ru/files/file/88335899130.pdfIn PDF document text
    • https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160b7d1f879f8a---dumubefugipadabopi.pdfIn PDF document text
    • https://anmimar.com/royal/userfiles/file/55654165202.pdfIn PDF document text
    • https://rockyhotelsgroup.com/uploaded/files/dipukipapedegojokuvet.pdfIn PDF document text
    • https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/5f4crikagllbk1nijunt4hsog1/62650718975.pdfIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012a52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A52 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00014269.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14269 11172 bytes
SHA-256: e91aa3fd25bd94bc4ab78afe91f3db42f0e92ece9731cda4f198ed36f729c6ad

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