Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0c061c9f48a3d7d…

MALICIOUS

PDF

80.5 KB Created: 2021-05-10 14:13:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: b85b8e8653e276856a994234a71c56be SHA-1: cb0b30c33c561cd637a93bb25837b358c7c1aae8 SHA-256: e0c061c9f48a3d7d0aa1360b132c6a4d71741845b97532c58cc520812b1b2250
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7539

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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    URL https://bologen.ru/strik?utm_term=citing+unpublished+federal+cases+in+california+state+court PDF link annotation
    • https://cdn.sqhk.co/duromivap/hhgdBES/junafukupedixizekuwavidij.pdfIn PDF document text
    • https://giruwaferelesed.weebly.com/uploads/1/3/4/8/134850821/16fafdd64183.pdfIn PDF document text
    • https://jokanile.weebly.com/uploads/1/3/5/9/135962808/pewuremix.pdfIn PDF document text
    • https://cdn.sqhk.co/senepaderu/gJifhgU/zumevojaloziz.pdfIn PDF document text
    • https://nuvitofoje.weebly.com/uploads/1/3/4/6/134640236/davuxebilokir.pdfIn PDF document text
    • http://nosetibadap.iblogger.org/zenebiwig.pdfIn PDF document text
    • http://bobujosu.epizy.com/ruvonapabutuduvuxajame.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/52397891707.pdfIn PDF document text
    • https://s3.amazonaws.com/minaxigevani/cayman_islands_government_scholarship_application_form.pdfIn PDF document text
    • https://s3.amazonaws.com/fajujiju/isometric_and_orthographic_drawing_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/xufoxorog/tedegudito.pdfIn PDF document text
    • https://s3.amazonaws.com/kudowo/gemesapudivemanogituva.pdfIn PDF document text
    • https://s3.amazonaws.com/bitizopovopaso/wukosuwiresax.pdfIn PDF document text
    • https://s3.amazonaws.com/bejexe/dinoxunap.pdfIn PDF document text
    • https://ca6b24e6-01cd-4368-a310-1df05077a315.filesusr.com/ugd/11b39a_3e41128ac2744683883a87cd4fd3db57.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wavunot/idioms_worksheets_for_grade_5.pdfIn PDF document text
    • https://s3.amazonaws.com/nisiwanolom/el_mundo_magico_de_terabitia_pelicula_completa.pdfIn PDF document text
    • https://s3.amazonaws.com/jaloto/pabupekidopidogodol.pdfIn PDF document text
    • https://e301b21f-f707-426c-a094-6199d4b1a2d6.filesusr.com/ugd/f65518_fc59ce3c42d149fab4ce59bd89922f40.pdf?index=trueIn PDF document text

Related samples 8

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