Malicious PDF — malware analysis report

Static analysis result for SHA-256 114c72e96edb4d1b…

MALICIOUS

PDF

366.5 KB Created: 2015-08-19 11:56:45 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: ff18206c4df7cc7abc57d6a3aa2ef5c7 SHA-1: 1c324ccf83a7363aeb678bf287165ac6e593c00b SHA-256: 114c72e96edb4d1b4a37b38c034562e782e3a4e7a42c9f942e458055aa7463ec
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a machine learning classifier and contains a link to a known malicious redirector. This indicates the document is likely part of a phishing or malware distribution campaign. No scripts were extracted, but the presence of a malicious URL is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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%83%D0%B7%D0%BD%D0%B0%D1%82%D1%8C+%D1%80%D0%B5%D0%B7%D1%83%D0%BB%D1%8C%D1%82%D0%B0%D1%82+%D0%B5%D0%B3%D1%8D+%D0%BF%D0%BE+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC%D1%83+%D1%8F%D0%B7%D1%8B%D0%BA%D1%83+2015&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4496/4496729_skachat_gotovuye_intro_dlya_sony_vegas_pro_12.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4496/4496722_multmama_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626446_skachat_game_hacker_na_android_na_russkom.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056fef.bin
f0ec51e729229d4126b98182ef2da0eb3ac5a4fe4e85f8329e643b6cf0a330f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56FEF 8432 bytes
font_01_sfnt_off00058863.bin
b4e8e751d98129f837ddefd74ef8d2020ee38e5faca697c91bbccf6464239def		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58863 16652 bytes

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