Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc2b9e84918053de…

MALICIOUS

PDF

187.4 KB Created: 2015-07-25 02:16:53 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: afdd2ae0a93d75a20f1d1918d2fd889b SHA-1: 86f8dab9923f9ea3d544f8d284102eeaa8c3b87c SHA-256: cc2b9e84918053dea3e7d4ee7d5c48a8ccb87e1f0e3dda85ca74652177cfaf6a
90 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The embedded URL is likely intended to lead the user to a site that will host further malicious content or phishing forms. No scripts were extracted, limiting the analysis of the exact payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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=%D0%98%D0%BD%D1%81%D1%82%D1%80%D1%83%D0%BA%D1%86%D0%B8%D1%8F+%D0%BF%D0%BE+%D0%BE%D1%85%D1%80%D0%B0%D0%BD%D0%B5+%D1%82%D1%80%D1%83%D0%B4%D0%B0+%D0%BC%D0%B5%D0%B4%D0%B8%D1%86%D0%B8%D0%BD%D1%81%D0%BA%D0%BE%D0%B3%D0%BE+%D1%80%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D1%80%D0%B0%D1%82%D0%BE%D1%80%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4194/4194633_unigraphics_nx_8_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192443_kogda_pridut_rezultatuy_gia_po_matematike_2015.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4194/4194163_kod_aktivacii_kis_2015.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024ac9.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24AC9 3556 bytes
font_01_sfnt_off0002584c.bin
108f9edd6d8d2e7afcefc735a084a13c4d592e3bab26a2395284ed61f1dc983e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2584C 14900 bytes
font_02_sfnt_off0002860b.bin
a00ee2e3d5f4108c8ec7bc090450963bb91fbdf6e29cf1f3121a60a7b23f723f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2860B 14532 bytes
font_03_sfnt_off0002b0fd.bin
96f5692ff92799e6cfb97ac65f9a5203ce2ec30a9cbf1a3bc9fd9c3b57416835		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B0FD 6524 bytes
font_04_sfnt_off0002c39e.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C39E 6084 bytes
font_05_sfnt_off0002d333.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D333 3752 bytes

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