Malicious PDF — malware analysis report

Static analysis result for SHA-256 d31687e3201f4b9f…

MALICIOUS

PDF

186.4 KB Created: 2015-07-24 07:48:28 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: abecc8d9c0af5bfde8ca496062b7c486 SHA-1: 301fc3b15316ed16a6792ec07748570e32ee176a SHA-256: d31687e3201f4b9f625fd02cf070906fef124c8627722e56a690c8b1894268d0
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent. This suggests the document is designed to lure users to a potentially harmful website. 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%98%D0%B3%D1%80%D1%8B+%D0%B3%D0%BE%D0%B2%D0%BE%D1%80%D1%8F%D1%89%D0%B8%D0%B9+%D0%BA%D0%BE%D1%82+%D1%82%D0%BE%D0%BC+1+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BD%D0%B0+%D0%BA%D0%BE%D0%BC%D0%BF%D1%8C%D1%8E%D1%82%D0%B5%D1%80&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185677_skachat_knigu_mein_kampf_na_russkom.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184457_spravka_o_srednem_zarabotke_dlya_centra_zanyatosti_blank_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184427_skachat_oruzheynuyy_pak_na_stalker_zov_pripyati.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024576.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24576 3556 bytes
font_01_sfnt_off000252f9.bin
3e5af59ff562049b6dc3e10ed4da92cfb41d63f926b0b750d51f136d92db440f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x252F9 14768 bytes
font_02_sfnt_off000280eb.bin
6dc0a659ed118271ba2784b9576f1f4f6ba94dbb047d6fb609994a06420c7276		 pdf-font-stream PDF embedded font (sfnt) at offset 0x280EB 14468 bytes
font_03_sfnt_off0002ab9d.bin
0620ee2757afe95833cddd207d2d32502f3aaa4be17076f260ef75f527061214		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB9D 6988 bytes
font_04_sfnt_off0002bfb9.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BFB9 6084 bytes
font_05_sfnt_off0002cf4e.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF4E 3752 bytes

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