Malicious PDF — malware analysis report

Static analysis result for SHA-256 b58e99b512521bb9…

MALICIOUS

PDF

71.7 KB Created: 2021-01-11 18:54:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: f602aebe0dd0b938cd0fc160cf6d95cf SHA-1: 656f2811cce2d8e6a367e2187857efa9131825a4 SHA-256: b58e99b512521bb9ddedea4106e4c84937742625afa5e0068f77559e27ad03eb
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL 'https://ggtraff.ru/aws?utm_term=battle+royale+games+for+pc+no' is identified as a malicious redirector. While no scripts were explicitly extracted, the nature of the PDF and the malicious URL suggest it is designed to lure users to a harmful site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://ggtraff.ru/aws?utm_term=battle+royale+games+for+pc+no In PDF document text
    • https://site-1179057.mozfiles.com/files/1179057/zofiwananiwugek.pdfIn PDF document text
    • https://cdn.sqhk.co/dudumadopole/JFhjjaQ/drum_set_games_2.pdfIn PDF document text
    • https://site-1198856.mozfiles.com/files/1198856/josekigidifebututixene.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457838/normal_5fc4263a2d0cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483589/normal_5fbd61f6e3133.pdfIn PDF document text
    • https://cdn.sqhk.co/fumamimed/rOhbygi/direct_line_driving_app.pdfIn PDF document text
    • https://cdn.sqhk.co/mozopojugode/jaOhaih/patoratufigupobegalejiw.pdfIn PDF document text
    • https://site-1180467.mozfiles.com/files/1180467/roku_tv_no_sound.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370785/normal_5f96d47137415.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373776/normal_5f9297a2c9439.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000dd24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD24 5488 bytes
SHA-256: 2ac088c870f300e838dae7189fc81ccb7009e1892a3101c83a6536e16ad3348d
font_01_sfnt_off0000efca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFCA 10032 bytes
SHA-256: 09c668f14e3aa4189155db231fa1435b4e2623bb7236a1c321d3a793e4fd6a30

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