Malicious PDF — malware analysis report

Static analysis result for SHA-256 7574a14249e363b0…

MALICIOUS

PDF

185.4 KB Created: 2015-07-28 00:29:08 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: edb17abf26c3bccc390b358b0f8a9191 SHA-1: e2f39e03166aecade35ebf82d77b6daa772ad778 SHA-256: 7574a14249e363b0dd10c929645dab64eb3205a49dcb2530eca2e63aa2443796
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a machine learning classifier and contains a link to a known malicious redirector. The embedded URL is likely part of a phishing or malware distribution scheme, aiming to redirect the user to a compromised site. No scripts were extracted, but the presence of a malicious link is a strong indicator of malicious intent.

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%BC%D0%BE%D0%BB%D1%87%D0%B0%D0%BD%D0%B8%D0%B5+%D1%8F%D0%B3%D0%BD%D1%8F%D1%82+2+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%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/5//4227/4227184_ea_sports_mma_pc_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4217/4217653_koran_kazanskiy_shrift_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4215/4215215_scenariy_vuypusknogo_vechera_v_11_klasse_oficialnaya_chast.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_off000243bc.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x243BC 3556 bytes
font_01_sfnt_off0002513f.bin
df43be06cc5bf26aeab9a5fb2dad75ed16866002b30067956338d3a10ebb4d37		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2513F 14644 bytes
font_02_sfnt_off00027e86.bin
1bdb34460530df544f3708516b9bff2a8899c1e4c5605cca86f0484fc167616c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E86 14468 bytes
font_03_sfnt_off0002a938.bin
4b1f7396fff7854b0faad2dc7308d4c3b0a128370ee1e97c77f7d01dd955aa37		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A938 6504 bytes
font_04_sfnt_off0002bbc6.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BBC6 6084 bytes
font_05_sfnt_off0002cb5b.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB5B 3752 bytes

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