Malicious PDF — malware analysis report

Static analysis result for SHA-256 609f8782d21a0633…

MALICIOUS

PDF

184.1 KB Created: 2015-08-08 11:43:11 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 5f2e0892dd48171b05dc18dd3fe44fba SHA-1: 13a87e620d9bb25dc0346a8951f7be434a8437d5 SHA-256: 609f8782d21a063396a524497aa2d71293798cb4080bf1e1f87ccd6c0ddb3523
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link identified as a malicious redirector. The ML classifier also flagged this PDF with high confidence. The embedded URL points to 'botcraftman.ru', which is likely an attempt to lure the user to a malicious site, possibly for credential harvesting or malware delivery. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BA%D0%B0%D1%80%D1%82%D0%B8%D0%BD%D0%BA%D0%B8+monster+energy&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384120_adobe_akrobat_skachat_besplatno_russkaya_versiya.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385832_uroki_twerk_dlya_nachinayuschih_na_russkom.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386246_kontrolnuyy_zhurnal_flay_ledi_shablonuy.pdf
    • http://www.microsoft.com/typography/fonts/You
    • http://www.microsoft.com/typography/fonts/

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a2b6.bin
94d55696e24addb6cbeeddcae4e38cb40c2c7be6c639a8f30ca79b510e69971b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A2B6 6868 bytes
font_00_sfnt_off00023c09.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23C09 3556 bytes
font_01_sfnt_off0002498c.bin
2a6ae1807dc59d5e6738785b877ed046f856e3398a9e2ebe087452a84963bcee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2498C 14604 bytes
font_02_sfnt_off0002772a.bin
118311f3c9119612dae6f407c0f855f224ca7ebf970ffc77fff00362bc574b6f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2772A 14744 bytes
font_04_sfnt_off0002b691.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B691 6084 bytes
font_05_sfnt_off0002c626.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C626 3752 bytes

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