Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef2d7e11a206a8da…

MALICIOUS

PDF

358.1 KB Created: 2015-08-20 08:38:14 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: b11d3713c78dd246a370bc9de040e81e SHA-1: f4f726a7877a8754f768a968b420d968fd79b2d7 SHA-256: ef2d7e11a206a8dae8c04dad23da53317561fc766675984f2b0261628d0e5e07
90 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector. No scripts were extracted, but the PDF structure and the malicious link suggest a phishing or malware delivery attempt.

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%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+backtrack+5+r3+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC+x64&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639495_oles_buzina_revolyuciya_na_bolote_chitat.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639838_medicinskaya_karta_titulnuyy_list_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639304_root_na_bilayn_smart_2_skachat.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000552b5.bin
75db0b2e8207dad7c6f5906609cdc4efdd52ac5f315df9591bcacf40736de5e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x552B5 9792 bytes
font_01_sfnt_off00056ebe.bin
63f63e9a602069c548b823bc24f37512164b2e68d52e22d6dccc0a92abe542e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56EBE 13700 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.