Malicious PDF — malware analysis report

Static analysis result for SHA-256 90266e2e452394d8…

MALICIOUS

PDF

389.8 KB Created: 2015-08-28 11:43:55 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 8893f34f508a96d43340116aba2e83e4 SHA-1: 85667a7d3acc62fcb48d943cb814bca7266cf929 SHA-256: 90266e2e452394d80008ef99b61b09d1be7ee851fe3df46c3c1e45744c0d4a46
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a malicious redirector link to 'http://botcraftman.ru/'. This URL is likely used to lure the user to a malicious site for phishing or malware download. The ClamAV detection further supports the malicious nature of the file. No scripts were extracted, but the embedded URL is sufficient evidence for a malicious redirector attack pattern.

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-9087601-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-9087601-0
  • 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=%D0%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BF%D1%80%D0%B8%D0%BB%D0%BE%D0%B6%D0%B5%D0%BD%D0%B8%D0%B5+%D1%84%D0%BE%D0%BD%D0%B0%D1%80%D0%B8%D0%BA+%D0%BD%D0%B0+philips+xenium&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802606_hochu__skachat_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802427_diplomnuyy__proekt__pgs_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802593_shrift__pechatnoy__mashinki_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005cc61.bin
595649c1682de49b824fe027c8910c5e88650228e3dbdf2c4b38107ff179684e
pdf-font-stream PDF embedded font (sfnt) at offset 0x5CC61 10044 bytes
font_01_sfnt_off0005e90c.bin
a031bb57c904a7bb9cb0bb49d3d91ca9fce8ec5560203b64f9d0280cb9f88994
pdf-font-stream PDF embedded font (sfnt) at offset 0x5E90C 15084 bytes