Malicious PDF — malware analysis report

Static analysis result for SHA-256 79e3a9d550c4126a…

MALICIOUS

PDF

186.5 KB Created: 2015-08-08 11:44:53 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 4967a039f64afba414f4bd6e29f00b87 SHA-1: 118c4ac61486ad1f7cc47ffc8d0a1427e0ed7e0e SHA-256: 79e3a9d550c4126a684add7b48fef0e537953c6a84210ceb2ae4ec7afb2f3e2f
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. While no scripts were extracted, the presence of this malicious link suggests the document is designed to lure users to a harmful website, likely for phishing or malware delivery.

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%BA%D0%B8%D0%BD%D0%B5%D0%BC%D0%B0%D1%82%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B0%D1%8F+%D1%81%D1%85%D0%B5%D0%BC%D0%B0+%D0%BA%D0%BE%D0%BC%D0%B1%D0%B0%D0%B9%D0%BD%D0%B0+1%D0%B3%D1%8868&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384391_mayn_kampf_audiokniga_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387519_skachat_vlastelin_kolec_bitva_za_sredizeme_2_klyuch_k_igre.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384625_amantu_billyahi_tekst_na_russkom.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_off000246c8.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x246C8 3556 bytes
font_01_sfnt_off0002544b.bin
1bfff6fe08b3484d199a302791089aa300d0caca11e270189d8d7807ef5bfb44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2544B 14036 bytes
font_02_sfnt_off00028098.bin
a2555de4ea5ea44711a0211a428302b4d04a786ee5d1c27218962e17fda843ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28098 14588 bytes
font_03_sfnt_off0002aba7.bin
46d11a4911a7f68e4098b21765a261dd08d52b252969e8dbc9b511aab3eb15fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ABA7 7076 bytes
font_04_sfnt_off0002c011.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C011 6084 bytes
font_05_sfnt_off0002cfa6.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CFA6 3752 bytes

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