Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae52707b19feeaff…

MALICIOUS

PDF

363.1 KB Created: 2015-08-22 09:13:43 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: c30c2e5b32bc2ad71471246511ce1f30 SHA-1: 591ad41912aabf0973c48e56f2336a8e8fc02234 SHA-256: ae52707b19feeaff68f52cfb7016bc9f896935cc552548bae9da894be42521df
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, botcraftman.ru, which is presented as a download for 'top of stalker multiplayer v 62'. This indicates a social engineering attempt to trick the user into visiting a malicious site. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+top+of+stalker+multiplayer+v+62&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674608_skachat_kontent_css_dlya_garrys_mod.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674595_mount_and_blade_warband_prophesy_of_pendor_3611_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674719_asus_a7n8xx_instrukciya_na_russkom.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055bd7.bin
9ef9eee4a490b2dc102b440fabbc82ea7d28f294db1642041922bd8e52d2cae3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55BD7 9576 bytes
font_01_sfnt_off000576a6.bin
b28038b41420e07be7228c41d6d40d263ec438bc5168b944029e74a47ceb52f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x576A6 18400 bytes

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