Malicious PDF — malware analysis report

Static analysis result for SHA-256 58591cebff8d75a7…

MALICIOUS

PDF

94.8 KB Created: 2021-02-26 13:55:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 6905f4437af0accc2a0813fcca46e95d SHA-1: df540c74b11d51fa7c42b2aef6a7e8bac6637bf4 SHA-256: 58591cebff8d75a7a301d9625b7a1d7494557feb7dc3d6fc12ea8018b60a0c76
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that, when visited, appears to be a lure for a Dell Latitude E6430 gaming review. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://resalured.ru/strik?utm_term=dell+latitude+e6430+gaming+review PDF link annotation
    • https://cdn.sqhk.co/kamavedes/ejbicND/college_football_dynasty_simulator.pdfIn PDF document text
    • https://cdn.sqhk.co/genopeno/DjiNAjb/80823583929.pdfIn PDF document text
    • https://cdn.sqhk.co/raserijene/dkcFgi3/polar_heart_rate_monitor_app_android.pdfIn PDF document text
    • http://flowerport.store/moles_to_grams_stoichiometry_problems_with_answersx19k5.pdfIn PDF document text
    • https://xuvuvigaxopezut.weebly.com/uploads/1/3/4/7/134721928/acf13e61.pdfIn PDF document text
    • https://cdn.sqhk.co/mekaxosur/csr1jfZ/87689173495.pdfIn PDF document text
    • https://cdn.sqhk.co/zerumowo/hgNsDha/vixalureremuloj.pdfIn PDF document text
    • https://cdn.sqhk.co/dajebala/g4jgfAs/alien_shooter_2_app_store.pdfIn PDF document text
    • https://cdn.sqhk.co/nolagutotato/iGIRhcP/zetanukonunef.pdfIn PDF document text
    • http://busibear.com/the_aeneid_sparknotes_book_2hopkr.pdfIn PDF document text
    • http://leopolds.space/kumedefaramosisatopfnx4g.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/gulapore/adara_kathawa_awasan_song.pdfIn PDF document text
    • https://s3.amazonaws.com/mutirexa/pola_camera_photo_editor_pro_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/jidosatikim/login_template_angular_6.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011781.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11781 5440 bytes
SHA-256: 04b097662d3c6d215d1370f99e18fb3ee63998d44448ecf00b9f808859dd5641
font_01_sfnt_off000129fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129FB 18676 bytes
SHA-256: fa74df7dee48ef9a80490ce3b8d764449d2c02b7f3cbb210133da79220cbf77a
font_02_sfnt_off0001601c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1601C 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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