Malicious PDF — malware analysis report

Static analysis result for SHA-256 09364d9895ebd3bf…

MALICIOUS

PDF

76.3 KB Created: 2021-02-18 00:04:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: a470c62def19a8400b89d274563d6287 SHA-1: 7b79bb4b65b09de93e730d6f9645abc034100d57 SHA-256: 09364d9895ebd3bf0b6f3f8a37eaa703675672d87376b5baa33a01b215f6a985
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that directs users to a suspicious domain, likely for a phishing or malware distribution attempt. The document body, though heavily obfuscated, appears to reference network device setup, suggesting a lure to trick users into clicking the malicious link.

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://bologen.ru/aws?utm_term=tp+link+model+tl-wr841n+setup PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4446155/normal_6023de106bbf6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385202/normal_5fff24b59919f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415308/normal_6011fb671a8da.pdfIn PDF document text
    • http://jisijopimif.66ghz.com/xamukotosol.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468267/normal_6011e677280bf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500430/normal_601d3b35bba91.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465564/normal_5fdf4647af5e0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zajozikudesurek.epizy.com/accounting_interview_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/fisulefajow/auditor_independence_declaration_form.pdfIn PDF document text
    • https://s3.amazonaws.com/neviwove/lenofivuxapomomokobesupe.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisi/45168829218.pdfIn PDF document text
    • https://s3.amazonaws.com/tesodagiwor/81178295727.pdfIn PDF document text
    • https://s3.amazonaws.com/guxosa/jafuxepuvepeba.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_off0000ed52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED52 5368 bytes
SHA-256: 49c774e81310c172c9afbef5eb66fff5b4a945530aa1e9c44f7a9d6eded123eb
font_01_sfnt_off0000ffa0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFA0 10748 bytes
SHA-256: 6af42ab4fa522dea81ddb73d190384433eb94010cfeeff31c8697e63ceb38239

Open this report in the interactive analyzer, or submit your own file for analysis.