Malicious PDF — malware analysis report

Static analysis result for SHA-256 15c9d9b206dd1eda…

MALICIOUS

PDF

75.6 KB Created: 2021-03-18 13:43:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 79d1a064a019a3e5423371dd592fa721 SHA-1: 726af1ca3f293122de5d1ebe353f9e810a86b9ff SHA-256: 15c9d9b206dd1edabd8a4a636a66bb7696590d5c23660ad1cecd314a2f3711e3
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 0.9995

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/strik?utm_term=el+arte+de+amar+ovidio+pdf+completo PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4415308/normal_5fe3092871b57.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487905/normal_5fce3ced498e0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480588/normal_5fce385f80327.pdfIn PDF document text
    • https://cdn.sqhk.co/lilavokolet/hgrwheU/lefakonejisilufosituzam.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423699/normal_5ffad9883f193.pdfIn PDF document text
    • https://cdn.sqhk.co/zobelekivix/gj56VQL/champions_hockey_league_playoffs_bracket.pdfIn PDF document text
    • https://cdn.sqhk.co/pajerelo/hbhbbhd/wutovul.pdfIn PDF document text
    • https://cdn.sqhk.co/komagiju/dUJiihh/bizajudelosawug.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456122/normal_5ff6d0ca9b7f6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467032/normal_5fea29d0432ec.pdfIn PDF document text
    • http://kiwedoro.66ghz.com/daffynition_decoder_5._3_worksheet.pdfIn PDF document text
    • https://cdn.sqhk.co/buwuvibija/wihggav/12702508126.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485826/normal_604dddddd8088.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/tejuvonixag/akkada_akkada_na_pranam.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/68870255865.pdfIn PDF document text
    • https://s3.amazonaws.com/fatisake/reference_sheet_art.pdfIn PDF document text
    • https://s3.amazonaws.com/resixexi/kudasatabu.pdfIn PDF document text
    • https://s3.amazonaws.com/xomudufe/japan_tour_guide_app.pdfIn PDF document text
    • https://s3.amazonaws.com/dazinibonofobi/93666158942.pdfIn PDF document text
    • https://s3.amazonaws.com/lovomijelun/15636934250.pdfIn PDF document text
    • http://wubifut.rf.gd/simple_pencil_art_step_by_step.pdfIn PDF document text
    • https://s3.amazonaws.com/kisagoz/feboxoxe.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_off0000e6e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6E2 5140 bytes
SHA-256: a584dfc447858c9d3b610526383a01109be68622ef86bee35b5e51e2f48e1e6c
font_01_sfnt_off0000f857.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF857 11920 bytes
SHA-256: 5e47c242a4150ea7b888f2726462b114e244aa642dbdfc9d86b610da580dd2d7

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