Malicious PDF — malware analysis report

Static analysis result for SHA-256 efba26518883a9fe…

MALICIOUS

PDF

67.6 KB Created: 2021-01-14 06:32:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: ac98bc09d45d24ed76e068509016a44a SHA-1: 840e5bbe178cb8183f4c6941cf0c91e670fefbdd SHA-256: efba26518883a9fe019d6971d5718c6f9f3dc7222a4d472309bf14c3ccad5bd2
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'trafffi.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to legal templates, consistent with phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

Heuristics 3

  • 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
  • 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://trafffi.ru/aws?utm_term=post+nuptial+agreement+template+new+york PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4381340/normal_5f908303e6fa7.pdfIn PDF document text
    • https://cdn.sqhk.co/gewanunu/hiibN87/dosarifamezezozarir.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482870/normal_5fb2e9078b33b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389793/normal_5fadce801be2a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393762/normal_5fbe6fa21bb0f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384817/normal_5fb8230d576f4.pdfIn PDF document text
    • https://cdn.sqhk.co/zerurukoraju/zjiWjbv/didedu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451929/normal_5fd7def6d190c.pdfIn PDF document text
    • https://cdn.sqhk.co/zanaforare/jduYial/zitufaje.pdfIn PDF document text
    • https://cdn.sqhk.co/joxomawezu/jhWiejw/allen_theaters_farmington_nm_job_application.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/gowebabuxogiro/critical_success_factors_ppt_template.pdfIn PDF document text
    • https://s3.amazonaws.com/piwanisaj/52139095379.pdfIn PDF document text
    • https://s3.amazonaws.com/punurum/general_questions_and_answers_for_civil_engineering.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eafd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAFD 5400 bytes
SHA-256: 48637de98604239f20fe8605d04e5385855048b976ec719c10e6fdb4522bc9d8

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