Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b84645bbb26c92e…

MALICIOUS

PDF

355.9 KB Created: 2015-08-21 09:26:00 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 0d563a795af1ab24a11b4b0684cf9560 SHA-1: 5731bb2e9ad67ee238fd4712ea13452ff451f7d1 SHA-256: 6b84645bbb26c92e10bd6b3b4f3ea229a40a793286e82325707de6b843c6a544
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic firing for a malicious redirector link pointing to 'http://botcraftman.ru/'. This indicates an attempt to lure the user to a potentially harmful site, likely for phishing or malware distribution. While no scripts were extracted, the presence of the malicious URL is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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=diablo+2+eastern+sun+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654707_fohisha_kizlar.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654740_minecraft_1_0_0_skachat_na_android_samsung.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654682_skachat_programmu_torrent_3x_speed.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054353.bin
c45ea119e1734cd893ac1c10d4ee47a6b533cf03ebcf28381ff5340d38ea6c44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54353 9440 bytes
font_01_sfnt_off00055d9d.bin
eefb4b3d378b8b6fff06c14dc37c5fd3ce29f7dd084f37dee3b5a5495e6e87de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55D9D 17048 bytes

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