Malicious PDF — malware analysis report

Static analysis result for SHA-256 0de9fab89885e405…

MALICIOUS

PDF

185.4 KB Created: 2015-08-08 09:57:39 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ed5be18310c9025368fd896c8ccb7007 SHA-1: 08fd2485a046be587d6719963291a8fcf89c5bdd SHA-256: 0de9fab89885e405c9aebf8cb855e830067953b9d099fa4d1c478a2ae537b2cb
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, is likely used to direct users to a malicious site. While no scripts were explicitly extracted, the PDF structure and the malicious link suggest an attempt to lure the user to a compromised resource.

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%B1%D0%B5%D1%81%D0%BF%D0%B0%D0%BB%D0%B5%D0%B2%D0%BD%D1%8B%D0%B9+aim+%D0%B4%D0%BB%D1%8F+cs+16+%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://img0.liveinternet.ru/images/attach/c/6//4384/4384559_sonic_adventure_2_hd_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383778_tekst_pesni_banana_mama.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384648_smotret_multik_pokoyo_na_russkom_yazuyke_vse_serii_podryad.pdf
    • http://www.microsoft.com/typography/fonts/You
    • http://www.microsoft.com/typography/fonts/

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a58e.bin
eeea9ddfd5852da62fc5fcef485e2fc70f336d88d66a03d57bffb15e8f72610d		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A58E 7632 bytes
font_00_sfnt_off00023f7b.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23F7B 3556 bytes
font_01_sfnt_off00024cfe.bin
deb1292a4b1e112aaf6b9c75fa8c3472e5621f8c11ee9b06921f906a01e2ab5b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24CFE 14700 bytes
font_02_sfnt_off00027a63.bin
9829d5d9ffc099fd756cb2f609495f58948d230a32312c0586b8954c4cf999e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27A63 14632 bytes
font_04_sfnt_off0002bbf6.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BBF6 6084 bytes
font_05_sfnt_off0002cb8b.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB8B 3752 bytes

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