Malicious PDF — malware analysis report

Static analysis result for SHA-256 073d838f8a408953…

MALICIOUS

PDF

362.8 KB Created: 2015-08-21 09:17:55 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: dca0fc04f28fdf7c7226eac9fcd7dd20 SHA-1: 2c8aaac093bc80f9065cd95cabe8c185fd6433fa SHA-256: 073d838f8a4089532e45548c4a15cdd23ab4f34e9947afdf75b04a114f919d94
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by multiple heuristics as malicious, including a critical finding for linking to known malicious redirector infrastructure. The primary malicious URL identified is http://botcraftman.ru/. The PDF's structure and the presence of embedded links strongly suggest it is designed to lure users to this malicious site, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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.
  • ClamAV: Pdf.Dropper.Agent-8798796-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8798796-0
  • 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%A7%D0%B5%D1%80%D1%82%D0%B5%D0%B6+%D0%BF%D0%BB%D1%83%D0%B3%D0%B0+%D0%B7%D1%8B%D0%BA%D0%BE%D0%B2%D0%B0&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654719_patek_philippe_geneve_58152_instrukciya.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654689_skachat_igru_metro_2034_cherez_torrent_besplatno_na_russkom.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056179.bin
de60a17b03dd9d7abfd9de6901046de109ea4315091a87b9c0062933f30560af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56179 8664 bytes
font_01_sfnt_off00057aae.bin
dc52f445a36fad7cb25e5ceb7c9d2b37269b2a13438b1004e057351ecbf91129		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57AAE 16132 bytes

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