Malicious PDF — malware analysis report

Static analysis result for SHA-256 3578ca80aff1341e…

MALICIOUS

PDF

71.2 KB Created: 2021-02-26 15:56:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f418aaac65fd0eee00057f8704484a09 SHA-1: 22d648b345bafee0276fec828001ab8776a15693 SHA-256: 3578ca80aff1341e96bf75fc56336f451ab3d84501664ed5393358dcdcb2a92d
104 Risk Score

Malware Insights

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

The PDF file contains a link that mimics a search result for a book, likely intended to trick users into downloading a malicious payload. ClamAV detection and ML classification strongly indicate malicious intent. The embedded URL points to a suspicious domain, suggesting a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://bologen.ru/wix?keyword=social+psychology+myers+11th+edition+pdf+download
    • http://otshelnik.net/voyager_legend_bluetooth_headsetxf1p3.pdf
    • http://infokurs.design/best_new_games_2019_androidf7qy3.pdf
    • http://lezigovedavide.getenjoyment.net/how_to_use_total_gym_xls_attachments.pdf
    • http://wewogokuwidu.mywebcommunity.org/michigan_child_support_calculator_online.pdf
    • http://xojuxelase.medianewsonline.com/peturuje.pdf
    • http://pewuzixuk.iblogger.org/beyonce_ft_shatta_wale_already_mp4.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/dugibabafod/physiology_coloring_book_free.pdf
    • http://pafisepobisu.rf.gd/30031087142.pdf
    • http://paporoj.rf.gd/brittain_academy_test_section_5_answers.pdf
    • http://relizaki.epizy.com/steinberg_cubase_5_full_crack.pdf
    • https://s3.amazonaws.com/marimejerebo/chauffeur_license_study_guide.pdf
    • https://s3.amazonaws.com/bufipevuril/zunokubuse.pdf
    • https://s3.amazonaws.com/nodetuxapabara/integrated_chinese_level_2_part_1_lesson_1_workbook_answers.pdf
    • http://likutolejit.onlinewebshop.net/12850242679.pdf
    • http://wafogaz.rf.gd/87262987967.pdf
    • https://s3.amazonaws.com/topipovikapari/udemy_videos_offline.pdf
    • https://s3.amazonaws.com/pazovugal/xigikizafiwumakediju.pdf
    • https://s3.amazonaws.com/sizabo/92625306223.pdf
    • https://s3.amazonaws.com/legesiliv/rinaka.pdf
    • https://s3.amazonaws.com/jeduzizonox/automobile_companies_in_india_list.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d820.bin
8119af8e7824464f9fafd86e895d9318cd38e2347faeec0fdd4b4fd1fa75f7d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD820 5920 bytes
font_01_sfnt_off0000ec39.bin
266e2add5c956359a69897e869d30ab0f53b2abb0019d4767fd60e1bbfecfcd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC39 10228 bytes

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