Malicious PDF — malware analysis report

Static analysis result for SHA-256 070971441cd497d3…

MALICIOUS

PDF

185.5 KB Created: 2015-07-24 00:18:42 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 15647b93e75fc95946614f3737a00a2c SHA-1: 91958247fff0b1baeb3f6cce4bd3ffe4399da8d4 SHA-256: 070971441cd497d31c99f2442c936f7053dbfd943c8dbb7063fe440f08eba176
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by multiple heuristics as malicious, specifically for containing a link to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The embedded URL is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted, but the presence of a malicious link is sufficient evidence.

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%B5%D0%BC%D0%B5%D0%B9%D0%BD%D1%8B%D0%B9+%D0%B1%D1%8E%D0%B4%D0%B6%D0%B5%D1%82+%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185501_akt_revizii_v_magazine_obrazec_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185492_mafia_2__10_dlc_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184636_kod_na_tank_v_gta_5.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_off000241ae.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x241AE 3556 bytes
font_01_sfnt_off00024f31.bin
6962e3f0057d49b0f538f300811e15f74d046dd586e12cc11e4a4e15dbfb7545		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F31 14952 bytes
font_02_sfnt_off00027d7f.bin
64792ceb5538ef6a4e6963fb2c986ac57c8a05cd24b19e746bfd84aab362a0d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D7F 14468 bytes
font_03_sfnt_off0002a831.bin
0bf98e664a0344872d5fabfe6a5704cd49f5014ad6b1108bf134362702c86be7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A831 6904 bytes
font_04_sfnt_off0002bc25.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC25 6084 bytes
font_05_sfnt_off0002cbba.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CBBA 3752 bytes

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