Malicious PDF — malware analysis report

Static analysis result for SHA-256 beba6b786d928d1d…

MALICIOUS

PDF

354.4 KB Created: 2015-08-21 09:18:49 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: dc7f6db8b9f1374fdc77a1b1f4000f60 SHA-1: 02452ad70611b22ce7ba8e04aa03372725359174 SHA-256: beba6b786d928d1dab857be055224409ec31ae132c2244f373630e850e63fc88
90 Risk Score

Malware Insights

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

The PDF contains an embedded link to a known malicious redirector infrastructure. The ML classifier also flagged this PDF with high confidence. The primary attack vector appears to be luring the user to the malicious URL, which is likely to serve a secondary payload or initiate a phishing attempt. No scripts were extracted from this sample.

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=rsplayer+v14+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654708_skachat_albom_balagan_limited_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654716_paola_volkova_most_cherez_bezdnu_kniga_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654677_skachat_gta_san_andreas_multipleer_03e_torrent.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054167.bin
fa30ff835a3b0c00f0f448676cad6b1a3fe3127b7eec22987e0b73efb55d47db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54167 9528 bytes
font_01_sfnt_off00055c24.bin
106de5cab217b8004ac00feb1abea85b35927de4fd4d80e6fff1a7a6ce905f32		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55C24 15156 bytes

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