Malicious PDF — malware analysis report

Static analysis result for SHA-256 c70dfc1cf4bbb7db…

MALICIOUS

PDF

351.6 KB Created: 2015-08-23 20:56:32 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 31c316c4cfa47edfbb519599142aab9d SHA-1: 51c1f159013932f49bbe0b5b4396036592c858bb SHA-256: c70dfc1cf4bbb7dbbcbd73b839997b8f9b91c8bb9b5ba1e9de6f23d28b486a74
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a direct link to a known malicious redirector infrastructure, botcraftman.ru. The embedded URL is presented as a download for 'alawar unwrapper v13 crack'. This indicates a social engineering attempt to trick the user into visiting a malicious site, likely for malware distribution or credential harvesting. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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=%D0%90%D0%B0%D0%B0+alawar+unwrapper+v13+crack+%D0%B4%D0%BB%D1%8F+%D0%B8%D0%B3%D1%80+alawar+2013&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690050_instrukciya__po__ohrane_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690033_dizayn__kvartir__studiy_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690075_kartuy__evropuy__dlya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053630.bin
0a8ab3fd480f8f071b62ad05537b1351cd00a83f4d56ee6c584a6e34d674c5ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53630 10404 bytes
font_01_sfnt_off0005531b.bin
80da94e409f52e9cfffb407d47424b671d2115316cbe4938d55a7b01cc62d9f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5531B 14240 bytes

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