Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6073ca3170b390b…

MALICIOUS

PDF

87.7 KB Created: 2021-04-07 04:21:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: ba5bedd7e120d4d357651a7e6a2a8d61 SHA-1: 1c40d0a274dac2dd6c1d9ad2707b4b3480ff070e SHA-256: d6073ca3170b390b497e9db0367deb7bc1efda42530b9d3501d8ebd94875a938
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://dafemum.ru/award?keyword=bowdichia+virgilioides+pdf PDF link annotation
    • http://komaxinatobofe.medianewsonline.com/81705436056.pdfIn PDF document text
    • http://gisoboxizaza.mygamesonline.org/57443243188.pdfIn PDF document text
    • http://poguzozod.sportsontheweb.net/vestige_agri_book.pdfIn PDF document text
    • http://futup.ru/cheats_for_witcher_3qie4z.pdfIn PDF document text
    • http://ig-copyrightviolation.com/53482400203hz17c.pdfIn PDF document text
    • http://nuxuzuruguli.mypressonline.com/wedding_ceremony_program_template.pdfIn PDF document text
    • http://useplafond.xyz/48126917952zo57a.pdfIn PDF document text
    • http://wide-mean.top/392989420035ppfm.pdfIn PDF document text
    • http://haifaiv.ru/nebazotimavizorusuuzs7t.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/fadadedezeker/fojegodudedozetowigoma.pdfIn PDF document text
    • https://s3.amazonaws.com/wuvepilamamuse/xujiroz.pdfIn PDF document text
    • https://s3.amazonaws.com/bodajaku/friction_stir_welding_of_aluminium_alloys.pdfIn PDF document text
    • https://s3.amazonaws.com/wuzalugiseto/dynamic_array_template_class_c.pdfIn PDF document text
    • https://s3.amazonaws.com/nupotukig/kebobizaz.pdfIn PDF document text
    • https://s3.amazonaws.com/rijaliwiguvex/class_11_chemistry_book_free.pdfIn PDF document text
    • https://s3.amazonaws.com/mamibis/jobovafijawap.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/waters_of_babylon_bible.pdfIn PDF document text
    • https://s3.amazonaws.com/gifojuxaxeva/91423824690.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/how_to_identify_learners_with_reading_difficulties.pdfIn PDF document text
    • http://zizenatoxu.myartsonline.com/bupeluzuweves.pdfIn PDF document text
    • https://s3.amazonaws.com/guwutivupudutu/19603959826.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ffe7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFE7 5620 bytes
SHA-256: 5af1a7645879db9050b8a12bc7bd17b9da20b55f2b8b5bbc22ac17f6537cf1f8
font_01_sfnt_off00011325.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11325 12468 bytes
SHA-256: 427bb43fa67d88852291f8d2f97dc1ca747f48f0acbed2df54f9238152bddf6a
font_02_sfnt_off00013be1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13BE1 16204 bytes
SHA-256: 541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501

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