Malicious PDF — malware analysis report

Static analysis result for SHA-256 27354ded7747e366…

MALICIOUS

PDF

185.4 KB Created: 2015-07-24 23:34:07 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: f2f191b481b9a75da94b180080639cec SHA-1: 2887b7faf3629b50586b23a4ee374bebc8f28c07 SHA-256: 27354ded7747e36632918ae713dc13845bdd382e28dfe0caca7b042b9499339a
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector. This suggests the document's primary purpose is to lure users to a malicious 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%B8%D1%81%D0%BB%D0%B0%D0%BC+%D0%BA%D0%BD%D0%B8%D0%B3%D0%B8+%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&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185170_andrey_maksimov_psihofilosofiya_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191272_obrazec_rezyume_skachat_shablon.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4193/4193612_adobe_illustrator_skachat_besplatno_russkiy.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024220.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24220 3556 bytes
font_01_sfnt_off00024fa3.bin
274dab94330ff99dedcc579baef81f81a832f5b4b3bf4a1d0a4a26973a6c0dbb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24FA3 15200 bytes
font_02_sfnt_off00027f04.bin
2f174bce2bf89b86ed20b23e335462fb6c665daf7d579c7771c32fa68bc7e60f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27F04 14468 bytes
font_03_sfnt_off0002a9b6.bin
3d415e5d27c9267556f9968bc46f036793bfadff12ecb99a70658cba24ea1e4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A9B6 6440 bytes
font_04_sfnt_off0002bbf5.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BBF5 6084 bytes
font_05_sfnt_off0002cb8a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB8A 3752 bytes

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