Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fe6a03c99903c2b…

MALICIOUS

PDF

69.6 KB Created: 2020-12-30 09:47:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 84264abe5ca0f60ed37488991360cad2 SHA-1: 18ffb9482b5a6ff370c92551f432162ad34e0ca0 SHA-256: 9fe6a03c99903c2bef1b9bb7cbd632b540c248d4d2b7ed110d96c9978a218d97
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://traffking.ru/strik?utm_term=plants+and+animals+worksheets+for+grade+2 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4487626/normal_5fbbaf9c91231.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425483/normal_5fc7184c4777d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385437/normal_5fad4159a540d.pdfIn PDF document text
    • https://cdn.sqhk.co/supuzeren/ahjhPja/foguw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418362/normal_5fd3b8f029eb9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382958/normal_5f9c6b05bdf7f.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/sumesawoxajew/employee_performance_evaluation_form_shrm.pdfIn PDF document text
    • https://s3.amazonaws.com/susonanezaj/coat_of_arms_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jifesu/rives.pdfIn PDF document text
    • https://s3.amazonaws.com/vukujidor/xofowemorosot.pdfIn PDF document text
    • https://s3.amazonaws.com/wotodedaruzuk/83793420775.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_off0000d03c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD03C 5612 bytes
SHA-256: f0ba5614d0a77152a5238cf819673ebdbe34ec36fb2c8c76477f2aec157482aa
font_01_sfnt_off0000e33b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE33B 11264 bytes
SHA-256: 9853083818c3fe1ba3b34f3e32ddfb9509d29149b112e6970aba2e2be87e4ef1

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