Malicious PDF — malware analysis report

Static analysis result for SHA-256 28654ef1f43a0b33…

MALICIOUS

PDF

185.7 KB Created: 2015-07-23 20:56:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ee64a733edfa359e3fa170d92d70f12b SHA-1: 2ac7640213809ffd26d88f76f52439a7a83df039 SHA-256: 28654ef1f43a0b339d09aead6bc211fc98ec4c8e1b5ab0a0a303573b2c36f0bb
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. The redirector URL is likely used to obscure the final destination, which could be a phishing page or a malware download site. No scripts were extracted, and the document body was truncated, limiting further 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%BA%D0%BE%D0%B4%D1%8B+%D0%BD%D0%B0+%D0%BD%D0%BE%D0%B2%D1%8B%D0%B9+%D1%87%D0%B5%D0%BB%D0%BE%D0%B2%D0%B5%D0%BA+%D0%BF%D0%B0%D1%83%D0%BA+%D0%BD%D0%B0+%D0%BA%D0%BE%D1%81%D1%82%D1%8E%D0%BC%D1%8B&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184458_videokarta_gigabyte_d33006_drayver.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184491_maykrosoft_ofis_2010_skachat_besplatno_russkaya_versiya_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184562_vuyyti_zamuzh_lyuboy_cenoy_skachat_besplatno_fb2.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002426a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2426A 3556 bytes
font_01_sfnt_off00024fed.bin
931b9d71070f36b257bd74282f7d19f914d7745bf72f10dc59f578b6c19a7043		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24FED 15208 bytes
font_02_sfnt_off00027ebe.bin
4ae165705ecc41720893a92c6e94e3ee89b3be36a12e4a920505046f59c61edc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27EBE 14468 bytes
font_03_sfnt_off0002a96c.bin
82c4fdd1bccd49e4e5e975588d66485e0b74087d617e878eb4a8489a3e229a74		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A96C 6848 bytes
font_04_sfnt_off0002bd2a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD2A 6084 bytes
font_05_sfnt_off0002ccbf.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCBF 3752 bytes

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