Malicious PDF — malware analysis report

Static analysis result for SHA-256 196460017cdc0eb2…

MALICIOUS

PDF

184.9 KB Created: 2015-07-23 20:13:29 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 90740d634effa586b99001b96740e71c SHA-1: ac83779b89ed5c387dba956416bd39b59e06490a SHA-256: 196460017cdc0eb2711f6e7cb86e02a1cd96a38eeb1af4be4ed714a10d9c6f78
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics as malicious, specifically for containing a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, 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 redirector strongly suggests an attempt to compromise the user.

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%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D0%B4%D0%BB%D1%8F+%D0%BE%D0%B1%D0%BD%D0%BE%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D1%8F+%D0%B1%D0%B8%D0%BE%D1%81&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184414_skachat_sbornik_klipov_v_formate_avi_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184263_skachat_mod_na_maynkraft_152_apokalipsis.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184448_rezultatuy_egye_po_matematike_2015_rostovskaya_oblast.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_off00023f54.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23F54 3556 bytes
font_01_sfnt_off00024cd7.bin
d12b1dccb197c3f035575b6ac7451de21e7784f70d8593cc687afa7f30dd15cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24CD7 15292 bytes
font_02_sfnt_off00027c35.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C35 14468 bytes
font_03_sfnt_off0002a6e8.bin
935c4d4e100daad3f0f45b50083e1541b3c50233833c531a71e1eaac79e47fce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A6E8 6564 bytes
font_04_sfnt_off0002b99b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B99B 6084 bytes
font_05_sfnt_off0002c930.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C930 3752 bytes

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