Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7fbfc08dbbf47ae…

MALICIOUS

PDF

67.8 KB Created: 2021-01-27 23:07:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: e908c1fb5047b5c1784d4c4af854b9ed SHA-1: b238fb5a61c679a43c5ee50d0d9140a2af2511de SHA-256: e7fbfc08dbbf47ae0712896113be642281419d54dd0b426116cec93a841918d3
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to a suspicious domain, likely intended to host malicious content or phishing pages. The document body, though heavily obfuscated, suggests a lure related to 'shoes pdf'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://leonvi.ru/123?utm_term=those+shoes+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4412378/normal_5ffba473dee23.pdfIn PDF document text
    • http://gejejok.iblogger.org/classic_mining_guide.pdfIn PDF document text
    • http://wimazosuwoxugij.66ghz.com/fetemunavetisifetafofe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wapowidomuf.epizy.com/polo_t_shirt_template_psd.pdfIn PDF document text
    • https://s3.amazonaws.com/wutogugej/home_rental_agreement_form_california.pdfIn PDF document text
    • https://s3.amazonaws.com/fupanabivote/rafomewawenaledomexoj.pdfIn PDF document text
    • http://rewifavad.epizy.com/channelling_my_spirit_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/fonibinaraj/52741241157.pdfIn PDF document text
    • http://rifunasi.epizy.com/mens_goldfish_platform_shoes.pdfIn PDF document text
    • http://wekameti.rf.gd/nasafipajovigixipomegexus.pdfIn PDF document text
    • https://s3.amazonaws.com/fapaga/86090830977.pdfIn PDF document text
    • https://s3.amazonaws.com/vapite/sakevupate.pdfIn PDF document text
    • http://tejusadesivuti.epizy.com/nivebudozagekowuf.pdfIn PDF document text
    • https://s3.amazonaws.com/jalasilunaz/24062950695.pdfIn PDF document text
    • https://s3.amazonaws.com/voxipanovigepiv/wokivamuwosivodakodek.pdfIn PDF document text
    • https://s3.amazonaws.com/wuxupewu/14875900479.pdfIn 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_off0000cf69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF69 4740 bytes
SHA-256: 40f22be99cbfa3df0081f4a9d6a56b8ee389b0e89c39f1f1fa84e32e9ff98af1
font_01_sfnt_off0000df8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF8D 10300 bytes
SHA-256: f18ef573ed85a520393d9c805af85503fb2603871a5b990e0ec88a2803b2e535

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