Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d62cc3519e3c26c…

MALICIOUS

PDF

346.2 KB Created: 2015-08-22 09:27:51 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: ae3d844b00408629eec22fa647ef5e58 SHA-1: 7137b326df514b3ad03419e9607d88ffdf7997aa SHA-256: 5d62cc3519e3c26cb8ccacd0b583583ceb3fe0e6091647601ef7f4667db785f2
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The primary malicious URL identified is http://botcraftman.ru/, which is likely used to deliver a secondary payload or conduct phishing. No scripts were extracted, but the presence of a malicious URL strongly suggests an intent to compromise the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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+%D0%BC%D1%83%D0%B7%D1%8B%D0%BA%D1%83+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%B8+%D0%B1%D0%B5%D0%B7+%D1%80%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D1%80%D0%B0%D1%86%D0%B8%D0%B8+%D0%BE%D0%B4%D0%BD%D0%B8%D0%BC+%D1%84%D0%B0%D0%B9%D0%BB%D0%BE%D0%BC&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674643_yetika_i_deontologiya_v_rabote_mladshego_medicinskogo_personala.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674711_double_trader_71_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674807_gotovoe_portfolio_uchenika_9_klassa.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052047.bin
1816f6ca09659d233dd872960844b96be6255b0386a190f6f3ed02af18c6040a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52047 8204 bytes
font_01_sfnt_off000537d1.bin
590565d5d4673b3086a3c2fa72936ae1b81498fb7fbac862810046adb0708b9a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x537D1 15832 bytes

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