Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3cdc6b7dbbc4832…

MALICIOUS

PDF

65.6 KB Created: 2021-02-17 16:50:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: b205a937ed0b5a994f6dbb9c40459f08 SHA-1: 40d1b984522e9e178e838039e37373aa2cec296d SHA-256: e3cdc6b7dbbc483248cd315a5fefe11f9f4909fc456bee7bbabd2c9efc238636
96 Risk Score

Malware Insights

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

The file is a PDF document that contains a lure related to 'Narnia prince caspian song list'. It embeds a URL that points to a suspicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/strik?utm_term=narnia+prince+caspian+song+list PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4484364/normal_5fe2fefb06f07.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367622/normal_5ffe910b32882.pdfIn PDF document text
    • http://dutov.org/28189357421r3sgc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384167/normal_6005f2885fa78.pdfIn PDF document text
    • http://kyponnik.online/acer_aspire_5250_service_manual9q2mk.pdfIn PDF document text
    • http://tibetterrier.ru/48814052965xnant.pdfIn PDF document text
    • http://secret-empire.ru/mafijamodofasobugubzr0w.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/davolazupivowi/tajuribulesikujukineki.pdfIn PDF document text
    • http://vakakumiwizexoj.epizy.com/busekemurozanubibof.pdfIn PDF document text
    • http://gokixedotoj.epizy.com/tor_browser_mac_10._7._5.pdfIn PDF document text
    • https://s3.amazonaws.com/jipowumat/grade_9_mathematics_questions_and_answers_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/xipavir/logo_quiz_answers_level_1_logo_22.pdfIn PDF document text
    • https://s3.amazonaws.com/silubebebefuju/barrios_julia_florida_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/7z_file_extractor.pdfIn PDF document text
    • https://s3.amazonaws.com/xumakomowi/arbol_de_decisiones_ejercicios_resueltos.pdfIn PDF document text
    • http://bisiziwaros.epizy.com/newsletter_format_html.pdfIn PDF document text
    • https://s3.amazonaws.com/sabegokek/malasegamopukukipajixeraz.pdfIn PDF document text
    • http://megisaduvivegi.epizy.com/kiwovoletuzubido.pdfIn PDF document text
    • https://s3.amazonaws.com/jepavilutabilel/jugepa.pdfIn PDF document text
    • https://s3.amazonaws.com/kewakuko/windows_10_iso_version_1809.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_off0000c85d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC85D 5068 bytes
SHA-256: cb02de3c1cb495eacebabdb220a2337e5fa6520ee6665c79ead44218a7eac7b3
font_01_sfnt_off0000d9ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9AB 9280 bytes
SHA-256: 2d485d2a0b7558130772feb63a91e072f67bf6546d42e41375142e6142c12a45

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