Malicious PDF — malware analysis report

Static analysis result for SHA-256 6865ddff840d086f…

MALICIOUS

PDF

184.3 KB Created: 2015-07-24 01:10:06 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c6f8da6f55ef8230f483e8566b8c272b SHA-1: 0c8e0f56a6c4b9d963e9daaf8af950ab26100fc0 SHA-256: 6865ddff840d086f5f314c0d2bc7b73b1e36acfe5ce26b56a62bba1bb7356add
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL likely serves as a lure to a phishing or malware distribution site.

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%A3%D0%B1%D1%80%D0%B0%D1%82%D1%8C+%D1%86%D0%B5%D0%BD%D0%B7%D1%83%D1%80%D1%83+%D0%B2+%D1%81%D0%B8%D0%BC%D1%81+3+%D0%BA%D0%BE%D0%B4&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184521_skachat_minecraft_pe_0_8_1_na_android_igruy.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184947_skachat_naruto_ultimate_ninja_storm_2_na_pc.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185463_drayvera_dlya_noutbukov_asus_x54c.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_off00023d9f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23D9F 3556 bytes
font_01_sfnt_off00024b22.bin
e21c64b3d83c392e627dcdc1fbb33a4f2ee4396f5775d2acdd473e911f9fbd93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24B22 14788 bytes
font_02_sfnt_off000278a7.bin
a8e34466c77775282ff35936152e77d2d006e6251a28fa13b9eb6049a2645024		 pdf-font-stream PDF embedded font (sfnt) at offset 0x278A7 14468 bytes
font_03_sfnt_off0002a352.bin
35fcfe81f3d034b96b987979b479ecbeb8ccacbaa484b00c87d16576ddd63355		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A352 6888 bytes
font_04_sfnt_off0002b739.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B739 6084 bytes
font_05_sfnt_off0002c6ce.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C6CE 3752 bytes

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