Malicious PDF — malware analysis report

Static analysis result for SHA-256 28a77e76dd698bdf…

MALICIOUS

PDF

372.8 KB Created: 2015-08-28 11:29:22 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: ac03e28567b057336fe8b3b3790fb42d SHA-1: 1c89dc3d36e126f64026492dbe470199b651a791 SHA-256: 28a77e76dd698bdf14c45b68b473df200b39e68fa5f6bb23cefaf49adbb8923d
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is highly suspicious and likely serves as a lure to a phishing or malware distribution site. No scripts were extracted, but the presence of the malicious link strongly suggests a social engineering attack aimed at redirecting the user to a harmful destination.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9946

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%BA%D0%BE%D0%BD%D1%82%D1%80%D0%BE%D0%BB%D1%8C%D0%BD%D1%8B%D0%B5+%D1%80%D0%B0%D0%B1%D0%BE%D1%82%D1%8B+%D0%BF%D0%BE+%D0%B0%D0%BB%D0%B3%D0%B5%D0%B1%D1%80%D0%B5+9+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D0%BC%D0%B0%D0%BA%D0%B0%D1%80%D1%8B%D1%87%D0%B5%D0%B2&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4792/4792818_kak__sbrosit__aktivaciyu_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4789/4789922_klipuy__bez__cenzuruy_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4794/4794069_kod__nalogovogo__organa_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00058f65.bin
04a85e45b296095127b4d573377e9c2a5b52c2dcc5df9213b6a2ef603a264034		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58F65 7924 bytes
font_01_sfnt_off0005a656.bin
a99484246cfe4ec51496d0450c7e6078ebb973227080cd4ef2ba3d7334f309af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A656 14208 bytes

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