Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca4efb5d9ff78883…

MALICIOUS

PDF

361.2 KB Created: 2015-08-29 01:36:41 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: fbbcb7bf686ea2fa8ebb978035b6f2a2 SHA-1: 3e72292792773ea166aae06649400dc46c49f7f2 SHA-256: ca4efb5d9ff7888380acc7bef55f2c5ddd00b65c42eba0916ed990cece6b98df
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to botcraftman.ru. This indicates the document is designed to redirect the user to a harmful site. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the presence of a malicious URL is sufficient evidence of a malicious intent, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-8912443-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8912443-0
  • 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%83%D0%B4%D0%BE%D0%B2%D0%BE%D0%BB%D1%8C%D1%81%D1%82%D0%B2%D0%B8%D0%B5+%D0%BE%D1%82+x+%D1%81%D1%82%D0%B8%D0%B2%D0%B5%D0%BD+%D1%81%D1%82%D1%80%D0%BE%D0%B3%D0%B0%D1%86+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817879_hodataystvo__o__propuske_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817951_igra__santa__klaus_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4818/4818116_rukovodstvo__po__remontu_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056082.bin
fc5f92a560cceec5228fe40d6551b4e63f2704ac0df3ac71d3fa0cb1ae3d6302		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56082 7896 bytes
font_01_sfnt_off00057712.bin
cb081f73553112247b26a6a05a5bf1096dd0cf55a42cf668cebf5b622b31d659		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57712 14748 bytes

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