Malicious PDF — malware analysis report

Static analysis result for SHA-256 5059666a33e78bff…

MALICIOUS

PDF

74.4 KB Created: 2021-03-31 20:40:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 84d6132378ba69e1d0950a05bcb7bd41 SHA-1: 263af1df737577d94eed6da0d9e600c5a6e04289 SHA-256: 5059666a33e78bff211130a7014cce3be604a3050f3b2a709071917df001e039
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URI pointing to a URL that mimics a search result for a technical book, likely a lure to trick users into downloading further malicious content. The document body is heavily obfuscated, preventing a detailed analysis of its specific intent beyond the initial lure.

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://leonvi.ru/strik?utm_term=head+first+java+10th+edition+pdf+github PDF link annotation
    • http://weinmvc.net/96688364096ieddo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4531626/normal_5fee38b5653e6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374535/normal_6047704430326.pdfIn PDF document text
    • http://idealica-ufficialeitalia.website/ruvenaditawamitbein.pdfIn PDF document text
    • http://doorstepcomputers.com/bubelabapiwofewavegufovuvzm35.pdfIn PDF document text
    • http://kprovk.xyz/vibidiguduwozucimna.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494868/normal_6021ab932ab3e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367656/normal_60131025d816f.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/xefezesebusu/sovokanatosamaforuvo.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibebulosaxug/penopaxuripusozup.pdfIn PDF document text
    • https://s3.amazonaws.com/tumuzu/yamaha_g1_baby_grand_piano_size.pdfIn PDF document text
    • https://s3.amazonaws.com/fatikonavori/61100443511.pdfIn PDF document text
    • https://s3.amazonaws.com/zufaxepixiguxax/critical_ops_aimbot_hack.pdfIn PDF document text
    • https://s3.amazonaws.com/resixexi/jordan_belfort_straight_line_selling_video.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/74245350742.pdfIn PDF document text
    • https://s3.amazonaws.com/naxizugenabi/pexeki.pdfIn PDF document text
    • https://s3.amazonaws.com/sukobogixe/46157558465.pdfIn PDF document text
    • https://s3.amazonaws.com/paropabaru/tejutesujepun.pdfIn PDF document text
    • https://s3.amazonaws.com/wuniku/47327556255.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_off0000e2ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2EE 5700 bytes
SHA-256: b20683fccacd891f10e08b6a400730e51d98258e782761d83ff2214aaf54722f
font_01_sfnt_off0000f660.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF660 11188 bytes
SHA-256: 419235ee5cdb174bac5a77c75eec6e02c210cfd6f4a174d55ce0639a21185a1f

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