Malicious PDF — malware analysis report

Static analysis result for SHA-256 405334ff664daa17…

MALICIOUS

PDF

187.8 KB Created: 2015-07-23 21:11:00 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 399284706726bf0691604b5fef8ab737 SHA-1: db1f00789f73459e71a63a1df576a1e90bee7b75 SHA-256: 405334ff664daa1702931e97dbde1bb1aa3819d392f3b7e9d7c25f513f2f0554
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a direct link to a known malicious redirector. This indicates the document is likely a lure to redirect users to a malicious website for phishing or malware delivery. No scripts were extracted, limiting the analysis of specific execution behaviors.

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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BA%D0%BE%D0%BD%D1%82%D0%B0%D0%BA%D1%82+%D0%BC%D0%B0%D1%81%D1%82%D0%B5%D1%80+%D0%BF%D0%BE%D0%BB%D0%BD%D1%83%D1%8E+%D0%B2%D0%B5%D1%80%D1%81%D0%B8%D1%8E+%D0%B4%D0%BB%D1%8F+%D0%B2%D0%B7%D0%BB%D0%BE%D0%BC%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184760_multimedia_fusion_2_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184820_crysis_2_teksturuy_vuysokogo_razresheniya_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184531_otchet_po_praktike_v_fskn.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024904.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24904 3556 bytes
font_01_sfnt_off00025687.bin
8c9ec7a5ae0ff166c24ac48a7a14354ba2faedf5e61908f906f21471a79cdd73		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25687 15288 bytes
font_02_sfnt_off00028607.bin
4ae165705ecc41720893a92c6e94e3ee89b3be36a12e4a920505046f59c61edc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28607 14468 bytes
font_03_sfnt_off0002b0b5.bin
05d3010f37f4d0ef77a538e65ff96f9552668c8abc055fbbf7a4d7bdd289e4dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B0B5 7084 bytes
font_04_sfnt_off0002c555.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C555 6084 bytes
font_05_sfnt_off0002d4ea.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D4EA 3752 bytes

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