Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ee919aa35ea7ea4…

MALICIOUS

PDF

73.8 KB Created: 2020-11-25 23:21:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 041b3f9d15e0d2246a1f65c691d431f0 SHA-1: 7732775e79b31f205956f1295190fd96ffcf2f89 SHA-256: 6ee919aa35ea7ea47817fabd812da3b2fe24fca0ac8864960f0c7de2295be541
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://traffine.ru/strik?utm_term=reddit+mma+streams+ufc+229'. This URL is likely used to direct users to a phishing page or download further malicious content. The ML classifier also strongly flagged this PDF as malicious, supporting the phishing or malware distribution intent.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://traffine.ru/strik?utm_term=reddit+mma+streams+ufc+229 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4384484/normal_5fabd5e603ce7.pdfIn PDF document text
    • https://babinekisifuve.weebly.com/uploads/1/3/2/6/132696104/7535376.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454163/normal_5fb03d0a10d62.pdfIn PDF document text
    • https://jaketomerinojox.weebly.com/uploads/1/3/4/1/134109184/rozeketula.pdfIn PDF document text
    • https://bogezozoxo.weebly.com/uploads/1/3/4/4/134479702/dunutugepaxomumizi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366365/normal_5f873b6b21640.pdfIn PDF document text
    • https://lodirunesu.weebly.com/uploads/1/3/0/8/130874391/dosozubir.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/fojaxexino/wevufupopusur.pdfIn PDF document text
    • https://s3.amazonaws.com/rekawexuretowo/zelowoxakadavone.pdfIn PDF document text
    • https://s3.amazonaws.com/rimepusox/jokaruv.pdfIn PDF document text
    • https://s3.amazonaws.com/sumesawoxajew/remington_597_stock_inserts.pdfIn PDF document text
    • https://s3.amazonaws.com/rejiner/eia_report_natural_gas_storage.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_off0000e414.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE414 5428 bytes
SHA-256: e32909080fb01d88c76af513357d2600102f26b993a49fbf6f6a39a2dc083427
font_01_sfnt_off0000f675.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF675 10784 bytes
SHA-256: 54164ccc3804d307c9c29578eb25ba595a134e87ae89854a9071d95b30788844