Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a7763597d307218…

MALICIOUS

PDF

74.6 KB Created: 2021-02-28 14:51:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 9e8f937c14b7db1811fc2b51a5269555 SHA-1: 801043d5d9ea7a6351bcce65788a410c3fee901c SHA-256: 0a7763597d3072187ce9abb185412481f67ec6e7d758a98556717baed4ff2c42
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a critical detection score. It contains an embedded URI pointing to a suspicious domain, likely intended to host a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to 'the way of energy'. No scripts were extracted, but the presence of an external URI and the overall malicious verdict strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://midufefew.ru/wix?keyword=the+way+of+energy+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4456128/normal_603acc1fde527.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391624/normal_5fefbac352764.pdfIn PDF document text
    • https://cdn.sqhk.co/kitujesijak/OhUhdEn/bowling_king_manga_read_online.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458631/normal_5fd1d239dea76.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443602/normal_60126133c4b62.pdfIn PDF document text
    • https://cdn.sqhk.co/nugizape/hdu3Ln9/unnatural_causes_place_matters.pdfIn PDF document text
    • http://sizijevoji.iblogger.org/fogupagiwuvolinirinamabin.pdfIn PDF document text
    • https://cdn.sqhk.co/zarejesorufo/bR6o4tV/pasilize.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zawemitop.epizy.com/stoner_john_williams.pdfIn PDF document text
    • https://s3.amazonaws.com/pirosisob/car_camcorder_fhd_1080p_specs.pdfIn PDF document text
    • https://s3.amazonaws.com/wukara/coconut_dehusking_machine_project_report.pdfIn PDF document text
    • http://jenigaseze.epizy.com/72641479681.pdfIn PDF document text
    • http://xarujubapemir.epizy.com/jukunololifux.pdfIn PDF document text
    • https://s3.amazonaws.com/palikuvexake/lonezamenusef.pdfIn PDF document text
    • https://s3.amazonaws.com/tutapaxi/77636584889.pdfIn PDF document text
    • http://wutejaxevewef.myartsonline.com/the_complete_idiots_guide_to_music_theory_by_michael_miller.pdfIn PDF document text
    • https://s3.amazonaws.com/gogoxowiniza/welapepivudopaxagofiw.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_off0000e8d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8D4 5236 bytes
SHA-256: a410b3839da6608bc926fb7e15e00fb830b69b963bf419483e59d8febaa2e2aa
font_01_sfnt_off0000fabc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFABC 10208 bytes
SHA-256: 91ee42dd1ae5cf3bc8e8c75b05a496ea678e5614e80cb5a3be242bf1b75e4071

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