Malicious PDF — malware analysis report

Static analysis result for SHA-256 e415241acc309fa0…

MALICIOUS

PDF

45.4 KB Created: 2020-11-03 21:08:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 6eee959b56143700f48b81521234ee24 SHA-1: 2d4ef25c570a5279f1b0391c867b1b77dc193b39 SHA-256: e415241acc309fa061c89544527afa2dddf7c81cfec6044bb05a01e5befe45e5
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains an embedded URL that points to known malicious redirector infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The ML classifier also flagged this PDF with high confidence. The embedded URL is designed to redirect users to potentially harmful content, likely a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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://gettraff.ru/aws?keyword=manual+for+fitbit+versa+2%252B In PDF document text
    • https://lagukekejase.weebly.com/uploads/1/3/0/8/130815031/misulebuposi.pdfIn PDF document text
    • https://wekubuzebebam.weebly.com/uploads/1/3/0/7/130739705/lagamafizo_vajugot.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370078/normal_5f8d857fbfbe0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420743/normal_5f9b7f7252920.pdfIn PDF document text
    • https://mufanebix.weebly.com/uploads/1/3/4/3/134349193/dezugevisalem.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370987/normal_5f9ebc5ed3a5c.pdfIn PDF document text
    • https://gemaxudemaxepeb.weebly.com/uploads/1/3/1/0/131070646/6292ad61c99dc02.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368225/normal_5f98f39877213.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388276/normal_5f9e3db167851.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369494/normal_5f8b046060c6b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413013/normal_5f99325b21274.pdfIn PDF document text
    • https://zitidatuviwe.weebly.com/uploads/1/3/4/4/134493200/8223890.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/fikuvine/can_i_run_rust_on_my_laptop.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/lebemifadesemofoti.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65A4 4980 bytes
SHA-256: a1ecd52f60e9500fb9007ae32053b3000a16c19af1537856a0f759bccb54d71b
font_01_sfnt_off000076ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76AC 10600 bytes
SHA-256: e0dfae877221dbba24383312d3e1691adb4db242c47e8368a7b177539f95e429
font_02_sfnt_off00009ae5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AE5 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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