Malicious PDF — malware analysis report

Static analysis result for SHA-256 509490173f2222b9…

MALICIOUS

PDF

187.5 KB Created: 2015-07-23 21:09:11 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2673b2926b90396fe7ce70f4898be569 SHA-1: 918914fcd7c658be548b068ee7e3f33eaa41864f SHA-256: 509490173f2222b9a84cc929944656c0194b6ef4e956724587bf747ff323feb1
92 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.002 Spearphishing Attachment T1071.001 Web Protocols

The PDF file contains an embedded link to a known malicious redirector. The ML classifier also flagged this PDF with high confidence. The primary malicious indicator is the URL http://botcraftman.ru/, which is likely used to deliver a secondary payload or redirect to a phishing site. No scripts were extracted from this sample.

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%93%D0%B5%D1%80%D0%B1%D0%B5%D1%80%D1%82+%D1%88%D0%B8%D0%BB%D0%B4%D1%82+java+%D1%80%D1%83%D0%BA%D0%BE%D0%B2%D0%BE%D0%B4%D1%81%D1%82%D0%B2%D0%BE+%D0%B4%D0%BB%D1%8F+%D0%BD%D0%B0%D1%87%D0%B8%D0%BD%D0%B0%D1%8E%D1%89%D0%B8%D1%85+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184421_obrazec_zayavleniya_na_uderzhanie_iz_zarabotnoy_platuy.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184631_rus02192012nm3_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184815_1s_predpriyatie_82_konfiguraciya_torgovlya_i_sklad_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002466e.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2466E 3556 bytes
font_01_sfnt_off000253f1.bin
f5b827e197be2c5b358c516a646a5591eaf46f4140616fbc675e16c4430ed677		 pdf-font-stream PDF embedded font (sfnt) at offset 0x253F1 15096 bytes
font_02_sfnt_off000282c4.bin
80d900337a7b280204907511196ca24e8abf0cbcba74d90a22e062f6a8e093d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x282C4 14732 bytes
font_03_sfnt_off0002ae60.bin
f320392e33a3b7e75bce5c7e7d962d98cc8f4393b2067ed2338a42afdb25cef6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AE60 7412 bytes
font_04_sfnt_off0002c402.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C402 6084 bytes
font_05_sfnt_off0002d397.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D397 3752 bytes

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