Malicious PDF — malware analysis report

Static analysis result for SHA-256 9262a18af6ad6c1f…

MALICIOUS

PDF

187.9 KB Created: 2015-07-24 05:33:27 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 1cfdf8ff72682d961eb507f471be6056 SHA-1: c323ae221137cf0d0c2ddb36973e23dfe5735eaf SHA-256: 9262a18af6ad6c1f113e617dfefd4533a6040a6b1f757f9f324d57c047f9987c
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 URL, indicating a phishing or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is sufficient evidence of malicious intent.

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%B4%D0%B6%D0%B8%D0%BB%D0%BB%D0%B8%D0%B0%D0%BD+%D0%BC%D0%B0%D0%B9%D0%BA%D0%BB%D1%81+%D0%BF%D0%BE%D1%85%D1%83%D0%B4%D0%B5%D0%B9+%D0%B7%D0%B0+30+%D0%B4%D0%BD%D0%B5%D0%B9+%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://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184445_volhovnik_kniga_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183203_kursovoy_proekt_torgovuyy_centr.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184434_reshenie_zadach_s5_po_himii.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024a01.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24A01 3556 bytes
font_01_sfnt_off00025784.bin
0f44611d4f4dfdc9c2319bfd37847cec5e70e1fe303ecee1b188bf8fb7d40135		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25784 14672 bytes
font_02_sfnt_off0002856d.bin
8a3c85992484bc7c767bfacb2622bd8909b7fd967c953d62fe4ec0f72e4d96c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2856D 14532 bytes
font_03_sfnt_off0002b05a.bin
48d9bf498bae7c723eff03dd2f58e74dde5f343f6a6ddc27314411c5667e8f43		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B05A 7320 bytes
font_04_sfnt_off0002c5ba.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C5BA 6084 bytes
font_05_sfnt_off0002d54f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D54F 3752 bytes

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