Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdef93beffc793c4…

MALICIOUS

PDF

187.0 KB Created: 2015-08-08 10:03:09 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 9f8d1cb517b25a6e266f6bc069e9e962 SHA-1: d10053207f8545ac82c715c53aada4b836f3d898 SHA-256: bdef93beffc793c4e7753f14f936254c9e4b7777be6c052484f5aab5e16bd411
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 link to a known malicious redirector. This indicates the document is likely part of a phishing or malware distribution campaign. No scripts were extracted, and the document body was not readable.

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%BD%D0%B0%D0%B1%D0%BE%D0%BA%D0%BE%D0%B2+%D1%85%D0%B2%D0%B0%D1%82+%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D0%B0+%D0%BE%D0%B1%D1%80%D0%B0%D0%B7%D0%BE%D0%B2&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384871_drayver_dlya_vstroennoy_veb_kameruy_lenovo.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384930_logotipuy_stroitelnuyh_kompaniy.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384381_stavka_bolshe_chem_zhizn_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024828.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24828 3556 bytes
font_01_sfnt_off000255ab.bin
4f09bdfd6093859f624d47be6e8afd547c42cae0fede04b8242ed147156a375e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x255AB 15168 bytes
font_02_sfnt_off000284b9.bin
7400a21e275de50c951ad7063bbf7f74cc200e40ff4573cb6ac77daf0c69be75		 pdf-font-stream PDF embedded font (sfnt) at offset 0x284B9 14532 bytes
font_03_sfnt_off0002afa9.bin
34849b3db87192b00f83e70a181798c00cf3153a0eadd7d5fcfa1ca3883ad7f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AFA9 6548 bytes
font_04_sfnt_off0002c24d.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C24D 6084 bytes
font_05_sfnt_off0002d1e2.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D1E2 3752 bytes

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