Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1adc3dbc9e63fb4…

MALICIOUS

PDF

368.4 KB Created: 2015-08-19 16:35:59 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 29ea226ce02c597b741d833a47775d3b SHA-1: ba93fe345bd3de1a4a41060fa1b40b2a9b0369bc SHA-256: b1adc3dbc9e63fb419a71febef1ace38c2026d05768c5dc689776d069e1a2348
92 Risk Score

Malware Insights

MITRE ATT&CK
T1200 Hardware Add-in T1059 Command and Scripting Interpreter

The PDF file contains a link to a known malicious redirector, botcraftman.ru. This indicates a phishing or social engineering attempt to direct the user to a harmful website. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9943

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=windows+7+home+premium+oa+cis+and+ge+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%81+%D0%BC%D0%B0%D0%B9%D0%BA%D1%80%D0%BE%D1%81%D0%BE%D1%84%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4628/4628263_skachat_dp_foto.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626968_egye_po_istorii_2015_dalniy_vostok_otvetuy.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626488_bonus_kod_dlya_world_of_tanks_na_iyun_2015_deystvuyuschie.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005769a.bin
665312e1ac7aefe693015dddc7f223ca2cd6f4adb223b2126079c579a1d2af2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5769A 10096 bytes
font_01_sfnt_off000591dc.bin
84a4ee16fa72584daaabc205e2ede31ccfbf3a4b9282a762601ae03ce7ee7e2c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x591DC 15300 bytes

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