Malicious PDF — malware analysis report

Static analysis result for SHA-256 424e9a9855d7e5ec…

MALICIOUS

PDF

358.2 KB Created: 2015-08-29 02:40:39 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 3dff1a50f70f3ce98358b4bce28b2855 SHA-1: 6e86d597309a6be4dd3b3910dec4c9b4bcfd0afa SHA-256: 424e9a9855d7e5ece9d73f5e456ac6b8fde9e9898fb7f99fb51350715ce206d5
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF document that contains a link to a known malicious redirector. This suggests the document is intended to lure the user to a malicious website, likely for phishing or malware distribution. 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 0.9980

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=%D1%82%D0%B5%D0%BC%D0%B0%D1%82%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%BE%D0%B5+%D0%BF%D0%BB%D0%B0%D0%BD%D0%B8%D1%80%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D0%B5+%D0%BF%D0%BE+%D0%B1%D0%B8%D0%BE%D0%BB%D0%BE%D0%B3%D0%B8%D0%B8+9+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D0%BA%D0%B0%D0%BC%D0%B5%D0%BD%D1%81%D0%BA%D0%B8%D0%B9&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4819/4819171_skachat__povelitel__zonuy_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4818/4818905_avatariacheatjimdocom__skachat__chit_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4818/4818193_strategicheskoe__videnie__bzhezinskiy_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055341.bin
564bc581cf7036ac62397cbd7587288c085f11d7aa05e3e947f97913cad632a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55341 7764 bytes
font_01_sfnt_off00056996.bin
a78a5ce7837b71c6a3b39ca4bfbfe006a0a09f83f224a5200586cea201871ef7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56996 15676 bytes

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