Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fafa99d3f7cce76…

MALICIOUS

PDF

77.4 KB Created: 2021-04-28 23:17:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 1780d885813d7e7a73fa029b16d13abd SHA-1: 5f0f05376e7e27a675afd0260b20adf801425381 SHA-256: 0fafa99d3f7cce76d0fec415c3b32592901a1197014ba993f3a2e4c456a2aecd
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9997

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://vilenefex.ru/strik?utm_term=percy+jackson+and+the+lightning+thief+audiobook+chapter+22 PDF link annotation
    • http://nenonazuf.scienceontheweb.net/91986024639.pdfIn PDF document text
    • https://cdn.sqhk.co/dusujukakal/gEQDShj/emotional_freedom_tapping_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/demawanetufi/vghgije/word_of_the_day_bible_catholic.pdfIn PDF document text
    • http://vowujebotoza.mywebcommunity.org/23755997450.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454161/normal_6003502d445ba.pdfIn PDF document text
    • https://cdn.sqhk.co/xegunorasu/dhf0gcA/9726904298.pdfIn PDF document text
    • https://cdn.sqhk.co/vufuvevu/WLibVAO/snowflake_drawing_easy_step_by_step.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484156/normal_60254b661a031.pdfIn PDF document text
    • https://cdn.sqhk.co/foxidagon/hNggkic/idle_penguin_game.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379742/normal_600e6ad717f66.pdfIn PDF document text
    • https://cdn.sqhk.co/wagomito/dM3vjej/german_wehrmacht_uniform_ww2.pdfIn PDF document text
    • https://cdn.sqhk.co/difixoruze/x12Iij4/cloudy_with_achance_of_meatballs_book.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/divexikav/gufutodemubotopezewat.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/34627121889.pdfIn PDF document text
    • https://s3.amazonaws.com/wikurixobelu/minuzumukivobaso.pdfIn PDF document text
    • https://s3.amazonaws.com/tudawufed/wodasiwotiwabovagufax.pdfIn PDF document text
    • https://s3.amazonaws.com/bufexa/78283656371.pdfIn PDF document text
    • https://s3.amazonaws.com/xepululejiwof/bluestacks_4_new_version.pdfIn PDF document text
    • https://s3.amazonaws.com/fulosobezur/nimuvizuturimas.pdfIn PDF document text
    • https://s3.amazonaws.com/farezelof/sowesojovafilukixi.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_off0000e9f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9F3 5932 bytes
SHA-256: db47c3fbbaa6c40a829a2c52d6d534aec2d5a9b89f56a58de0d118b56b764a13
font_01_sfnt_off0000fe33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE33 11636 bytes
SHA-256: 2aa2aa7dc74ca012be2b3d84fb8483e99c0224b7289dde03202ace20450cd9be

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