Malicious PDF — malware analysis report

Static analysis result for SHA-256 147cdd01dd11dd77…

MALICIOUS

PDF

184.9 KB Created: 2015-08-08 10:36:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c5d1c37559ef088132c1dbee6d1be08b SHA-1: 38bf18ca9eb481ac1d40a3dac520af27439e775f SHA-256: 147cdd01dd11dd7720c99104aac204e16108137e96e386fefe4b8622d3b9edcb
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of a malicious URL is sufficient evidence of a phishing or malware distribution attempt.

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%B8%D0%B3%D1%80%D1%83+%D1%85%D1%80%D0%BE%D0%BC+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385167_kak_uvelichit_rost_v_lyubom_vozraste_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385708_itunes_match_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384611_duyskin_odinak_skachat.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024253.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24253 3556 bytes
font_01_sfnt_off00024fd6.bin
9fc66f62b40ba641b6466b66193833a2003779fe178d3dc75b8df0554fccef64		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24FD6 14328 bytes
font_02_sfnt_off00027c63.bin
a6626c0bd3595dc776735a93968cf26fa9368d0e017313712711ccf7ec06347e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C63 14532 bytes
font_03_sfnt_off0002a753.bin
197e6805cad53c7834ecba03d376275b70ace7ba56207984b7c00d4f4a3d6323		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A753 6516 bytes
font_04_sfnt_off0002b9fe.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B9FE 6084 bytes
font_05_sfnt_off0002c993.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C993 3752 bytes

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