Malicious PDF — malware analysis report

Static analysis result for SHA-256 48d43eec43d5ec82…

MALICIOUS

PDF

71.5 KB Created: 2021-02-28 14:43:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 5cc4899895b35bc20a9eaa0141d484a5 SHA-1: 99ba78dc7d6ba0fda563217937c3513c2c173621 SHA-256: 48d43eec43d5ec8215029cdd5204c6e5d07ca76a3e6fd6696ae8fc1144dd92f3
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that, when visited, appears to be a product listing for a Garmin watch, likely a lure for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jacksth.ru/strik?utm_term=garmin+epix+gps+multisport+watch PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4449192/normal_5ffcc6c914598.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368506/normal_5ffa1d947003c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455195/normal_601afa641925c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445118/normal_6015c07cea721.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403952/normal_602e99e64ef27.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413373/normal_5fe7e981b111e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453102/normal_6015cacca2e1c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401697/normal_600d441ce70a6.pdfIn PDF document text
    • https://cdn.sqhk.co/rizijuwet/fjiKYPH/63185804318.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459055/normal_5ffc8a344ca09.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412173/normal_60187fd53fe07.pdfIn PDF document text
    • https://cdn.sqhk.co/lilapanorup/dhghbib/giroretivifeb.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/luxaduzimase/rujugaxepe.pdfIn PDF document text
    • https://s3.amazonaws.com/petuzutemixuvod/bloody_sunday_2002_movie.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_off0000d9d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9D3 5536 bytes
SHA-256: 9b623712f0f4ee28f55d825ac3b91bb01d2eedfc423a330563f2df958d488bde
font_01_sfnt_off0000ec98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC98 10712 bytes
SHA-256: 5a8217cfa6b76a9b8242ae1e9b6e53950f86132b56ac20abd2bb06a394d6fdc0

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