Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ef173d6e8c8ffdf…

MALICIOUS

PDF

83.0 KB Created: 2021-03-02 09:24:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 3ac34c2ae6817a9edd8a70f02acb3ebf SHA-1: def109ba40025ff16c2951113c91e90c3da1c690 SHA-256: 0ef173d6e8c8ffdfc47fb670891b88a31f073911abd6d4606557e535a694c3d0
96 Risk Score

Malware Insights

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

The file is identified as malicious by a machine learning classifier and ClamAV, with the latter specifically flagging it as Pdf.Phishing.Trojan. The embedded URI points to a suspicious domain, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains text related to 'Napoleon hill 16 laws of success', likely serving as a lure.

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://soxebez.ru/award?keyword=napoleon+hill+16+laws+of+success+summary PDF link annotation
    • https://cdn.sqhk.co/jotenitix/HojdGpF/dominos_republica_dominicana_santiago.pdfIn PDF document text
    • http://metalllift.ru/fetepoxelizelofiltdae.pdfIn PDF document text
    • https://cdn.sqhk.co/tamupoto/Piil1jc/ninja_run_adventure_game.pdfIn PDF document text
    • http://opensalon.xyz/free_photography_website_templates_html5v0srd.pdfIn PDF document text
    • http://koreanluxe.com/girunukijudipakok0ytp.pdfIn PDF document text
    • https://cdn.sqhk.co/mebereserab/ifjigc7/best_aaa_rechargeable_batteries_and_charger.pdfIn PDF document text
    • http://reduslimitalia.website/how_to_make_story_in_little_alchemy_2_step_by_step57lo9.pdfIn PDF document text
    • https://cdn.sqhk.co/xeveweno/iizij12/45194822330.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/juzewojavomofew/58604997360.pdfIn PDF document text
    • https://s3.amazonaws.com/mipeboro/cadillacs_and_dinosaurs_mustapha_game_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vonutavekip/gunosudomebubezodumazij.pdfIn PDF document text
    • https://s3.amazonaws.com/waduzirader/noneg.pdfIn PDF document text
    • https://s3.amazonaws.com/jifedefujodu/juredagugafezupupivevij.pdfIn PDF document text
    • http://bozudob.epizy.com/appsheet_developer_freelance.pdfIn PDF document text
    • http://xesesopid.rf.gd/xepikifin.pdfIn PDF document text
    • https://s3.amazonaws.com/likerajatob/bootstrap_4_admin_template_free_dark.pdfIn PDF document text
    • https://s3.amazonaws.com/kozewuposoridil/9779322673.pdfIn PDF document text
    • https://s3.amazonaws.com/lakadutof/cooper_lighting_apel.pdfIn PDF document text
    • http://sewasijibakel.epizy.com/formation_chaudronnerie_aronautique.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_off0000f892.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF892 5424 bytes
SHA-256: c2ecff6651ea05d0311b1ae0ee656d7e197897d00423ed2d838f47d1db86d262
font_01_sfnt_off00010aea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AEA 10992 bytes
SHA-256: 88d1615e572d5f362334f6a258f917012e5e70234a1adb2ee56f0efb6162be72
font_02_sfnt_off0001306d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1306D 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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