Malicious PDF — malware analysis report

Static analysis result for SHA-256 0de5923e871c7589…

MALICIOUS

PDF

187.5 KB Created: 2015-07-24 03:48:18 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 28d351809ec31a47bb0cd0ad3e55e444 SHA-1: d94f5e19360336407f858daaf54c9408f64b20a0 SHA-256: 0de5923e871c7589fd66049081a002864d81cd47d00acfd2d4df7d6b4f4781f2
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. While no scripts were explicitly extracted, the PDF structure and the malicious URL strongly suggest an intent to exploit the user through redirection. The ML classifier also flagged this PDF with high confidence.

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%B0%D0%B2%D1%82%D0%BE%D0%BA%D0%B0%D0%B4+2009+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%B0%D1%8F+%D0%B2%D0%B5%D1%80%D1%81%D0%B8%D1%8F&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185643_licevaya_kartochka_avtomobilya_obrazec.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187531_skachat_game_hacker_trashbox.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186277_antiplagiat_proverit_tekst.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_off000248dc.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x248DC 3556 bytes
font_01_sfnt_off0002565f.bin
b15334bb1ff7ee8197e24ecba525fa972e1ef0fd4e0eb1f8e8a5c568a92ed29a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2565F 15028 bytes
font_02_sfnt_off00028478.bin
0fca6cd760ea61b568275a6c20d17557936b8b9fa7658acda180372c01969717		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28478 14468 bytes
font_03_sfnt_off0002af29.bin
36aab4790e65286c4667e69a741b33be670e4e4876e5e57219b6355dc911996d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AF29 7168 bytes
font_04_sfnt_off0002c41c.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C41C 6084 bytes
font_05_sfnt_off0002d3b1.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D3B1 3752 bytes

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