Malicious PDF — malware analysis report

Static analysis result for SHA-256 c29fef957dd33f3a…

MALICIOUS

PDF

70.2 KB Created: 2021-03-15 18:12:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 2377b7634fd82efeae51cf68a0e2d23d SHA-1: 4ec3fa839cd64ea2a079d19029c2f20b37bdf2b7 SHA-256: c29fef957dd33f3ac021009cee05a60126450fc9d3cb7a8a5a62b4b6b193bfda
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a suspicious domain, identified as a phishing lure for a ringtone. ClamAV detection and ML classification strongly indicate maliciousness. While no scripts were extracted, the presence of the malicious URL and the document's likely intent to trick users into visiting it suggest a phishing attack.

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://golowaki.ru/123?utm_term=anuragini+flute+ringtone PDF link annotation
    • https://cdn.sqhk.co/zudilubal/cg9geib/best_free_color_splash_app_for_android.pdfIn PDF document text
    • http://rurotal.22web.org/39813404979.pdfIn PDF document text
    • http://wopexobow.mywebcommunity.org/30366884581.pdfIn PDF document text
    • http://sibuvre.com/18374414822p7oml.pdfIn PDF document text
    • http://dududuw.mypressonline.com/good_books_for_12_year_olds_boy.pdfIn PDF document text
    • http://nokasosozigof.mypressonline.com/69369111388.pdfIn PDF document text
    • https://cdn.sqhk.co/wobuwozavenu/cichbaf/nunomuf.pdfIn PDF document text
    • https://cdn.sqhk.co/sileluzorupo/fgcV3ji/fopupatadepofulasesukil.pdfIn PDF document text
    • http://websporizle4.com/valuation_sur_le_cercle_ce2fd1et.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/pujinit/shopfine_premium_bootstrap_ecommerce_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/xovekolamoxe/81812452605.pdfIn PDF document text
    • https://s3.amazonaws.com/xukonakefules/express_bios_update.pdfIn PDF document text
    • https://s3.amazonaws.com/jumedemimo/wondershareelement_blogspot.pdfIn PDF document text
    • https://s3.amazonaws.com/paxunu/3807087625.pdfIn PDF document text
    • http://sajulugebimisu.myartsonline.com/13414146746.pdfIn PDF document text
    • https://s3.amazonaws.com/tufujifinobiro/marathi_hd_movies_site_list.pdfIn PDF document text
    • http://masomivi.rf.gd/math_equation_solver_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/mamibis/tekogasefobugimugawinof.pdfIn PDF document text
    • https://s3.amazonaws.com/tonisefoteka/93442003154.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_off0000d6b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6B6 4744 bytes
SHA-256: 11bf3bb49a5bcd39c6c09cecd90bb792bdc6c33031f317b331c1c876adfa3630
font_01_sfnt_off0000e6ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6ED 10968 bytes
SHA-256: 0f9bfd652ac37859f618572c2b53e7370029b2afbd532544aff3baa9fa287de7

Open this report in the interactive analyzer, or submit your own file for analysis.