Malicious PDF — malware analysis report

Static analysis result for SHA-256 09bed76ab43e6618…

MALICIOUS

PDF

348.9 KB Created: 2015-08-19 13:52:48 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 5b912ec0fd9f4412f25f8534e7605bc6 SHA-1: 007411f5c057e5565eeec3d7c2b3ebfec0947af0 SHA-256: 09bed76ab43e6618c97b39ed680e5a1d6498a9a56647105dfb3afa6503f3c0d9
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, and contains a link to known malicious infrastructure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the embedded URL as a redirector. This suggests the document's primary purpose is to lure the user to the malicious domain, which likely serves as a dropper for further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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-7620728-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7620728-0
  • 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%93%D0%BE%D1%82%D0%BE%D0%B2%D1%8B%D0%B9+%D0%B4%D0%BD%D0%B5%D0%B2%D0%BD%D0%B8%D0%BA+%D0%BF%D0%BE+%D0%BF%D1%80%D0%BE%D0%B8%D0%B7%D0%B2%D0%BE%D0%B4%D1%81%D1%82%D0%B2%D0%B5%D0%BD%D0%BD%D0%BE%D0%B9+%D0%BF%D1%80%D0%B0%D0%BA%D1%82%D0%B8%D0%BA%D0%B5+%D0%BC%D0%B5%D0%B4%D1%81%D0%B5%D1%81%D1%82%D1%80%D1%8B&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626582_sladkov_medveddarmoed_chitat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626449_kak_aktivirovat_kod_produkta_origin_dlya_fifa_15.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626460_1st_studio_siberian_mouse_hd_127_min09.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052c36.bin
5cfcc6443ba4507ca5495df2698e8d2684eebd9bca608813fb1db2a198258eb5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52C36 8364 bytes
font_01_sfnt_off0005443e.bin
60aea913210c3bdfe385bb275fa99dc15af73b4f1d092c9d588b5170d174c11e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5443E 15884 bytes

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