Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3ee0aad4db198bf…

MALICIOUS

PDF

73.4 KB Created: 2021-07-14 04:38:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 3cd42385f30e791e5477abee38f433ea SHA-1: 026e48f89eff2139a87ecd117d75dad7c853a7e8 SHA-256: d3ee0aad4db198bf473d62afceaeb104230d17ed9a034ddd6461304cd76b1094
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is detected as a PDF phishing trojan by ClamAV. It contains an embedded URI pointing to a Google feedproxy URL, which in turn redirects to a Squarespace domain. While the linked URLs themselves are marked as benign, the ClamAV detection and the presence of embedded URLs suggest a phishing or scam attempt. No scripts were extracted, limiting further analysis of the payload delivery mechanism.

Machine Learning

  • Nyx PDF Classifier clean score 0.1558

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://feedproxy.google.com/~r/razvivatel/yapz/~3/NsX9ihectO0/square?utm_term=homemade+creamer+with+condensed+milk
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec82a4d0153e73bf8bb2e3/1626112676351/comic_book_pages_templates.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60eca46ef4b4775d04a247c6/1626121326631/mefogokigesivokape.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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bdae.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0xBDAE 16792 bytes
font_01_sfnt_off0000d5c5.bin
7d3be3b63d9ad04826b5ae175bfa30618e8f8389b0e124a67b2a18baca97a337
pdf-font-stream PDF embedded font (sfnt) at offset 0xD5C5 10804 bytes
font_02_sfnt_off0000ee75.bin
9e044789a3c7cc49273c028bddde60fc8c45c8d7b8289c838e37b54610d01709
pdf-font-stream PDF embedded font (sfnt) at offset 0xEE75 16352 bytes