Malicious PDF — malware analysis report

Static analysis result for SHA-256 173ed3015f0e28fa…

MALICIOUS

PDF

364.2 KB Created: 2015-08-11 22:13:30 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ac6fdeabbe3d32523b13e7286662c772 SHA-1: 6168b12f4a9621a33a3f3fd042bc6eb54467576b SHA-256: 173ed3015f0e28faa86280c2960e98f5f8b4dd5ebe7a8625964221696e716ddc
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. This suggests the document is designed to lure users to a malicious website, likely for phishing or malware delivery. No scripts were extracted, and the document body was unreadable, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6468

Heuristics 2

  • 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.
  • 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 http://botcraftman.ru/?lip&keyword=%D0%B8%D0%BD%D0%B4%D0%B8%D0%B9%D1%81%D0%BA%D0%B8%D0%B9+%D0%BF%D0%BE%D0%BA%D0%BE%D0%B9%D0%BD%D0%B8%D0%BA+%D1%82%D0%B5%D0%BA%D1%81%D1%82&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4419/4419243_treyner_dlya_stalker_zov_pripyati.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4422/4422794_chituy_dlya_the_forest_005.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4457/4457817_chit_na_dengi_maynkraft.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005758f.bin
a40ca4d01f060b340ef32bc87ccab3125c549c599014ec4bb8f1f4c530379862		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5758F 5704 bytes
font_01_sfnt_off00058600.bin
fa36d3e8dfee27c11305574818ed24986236464f582ebd28ee9ec779fcb55646		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58600 14212 bytes

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