Malicious PDF — malware analysis report

Static analysis result for SHA-256 048cab0554c6027f…

MALICIOUS

PDF

75.7 KB Created: 2020-12-18 21:13:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 902fc07be21a05e3228caba22170339f SHA-1: 6548263cfa9c0b8c0bc0fa10d69923471dde0950 SHA-256: 048cab0554c6027f5cb232b54b6cc4fd13c7f21378324b64505f0358aa04475d
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://traffmen.ru/strik?utm_term=forced+perspective+photography+ideas+at+home'. This indicates the document's primary purpose is to lure the user to this external site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is sufficient evidence of a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

Heuristics 4

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffmen.ru/strik?utm_term=forced+perspective+photography+ideas+at+home
    • https://cdn-cms.f-static.net/uploads/4486763/normal_5fb576e920906.pdf
    • https://cdn-cms.f-static.net/uploads/4472773/normal_5fafb0e180ca9.pdf
    • https://cdn-cms.f-static.net/uploads/4372987/normal_5f88aa8fae1f4.pdf
    • https://cdn-cms.f-static.net/uploads/4426558/normal_5fa87244b917f.pdf
    • https://cdn-cms.f-static.net/uploads/4384655/normal_5fa1f52c3ed21.pdf
    • https://cdn-cms.f-static.net/uploads/4408865/normal_5f93b0550e951.pdf
    • https://cdn-cms.f-static.net/uploads/4374189/normal_5fada231b066a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/vanatul/69908197502.pdf
    • https://s3.amazonaws.com/jebokizez/genetics_test_study_guide_answer_key.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000daaf.bin
5fd8986b62bb8708bd0d93d9e8aae7a14375a56a5c554553c651c438c34aa47f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDAAF 5256 bytes
font_01_sfnt_off0000eca4.bin
59d94fda50679a2b787ed9fa642c6337ca122e1eaad618a16b2f4966b91ebbd1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xECA4 11668 bytes
font_02_sfnt_off000113b4.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x113B4 4324 bytes

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