Malicious PDF — malware analysis report

Static analysis result for SHA-256 1337c3c9f95a9f88…

MALICIOUS

PDF

184.7 KB Created: 2015-07-24 04:44:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 74baed299dac122722597d0ce17c412a SHA-1: 09171fd3b28a57e547b549cac0e4932ed09d9e66 SHA-256: 1337c3c9f95a9f8810629bc798048438a0d356fec519a2d60c6ce904fbc619da
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by a machine learning classifier and contains a link to a known malicious redirector at botcraftman.ru. This suggests the document is designed to lure users to a malicious site, likely for phishing or to download further malware. The presence of a malicious redirector is the primary indicator of malicious intent.

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=Spyhunter+%D0%BF%D0%BE%D0%BB%D0%BD%D1%83%D1%8E+%D0%B2%D0%B5%D1%80%D1%81%D0%B8%D1%8E&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184789_evaphone_na_russkom_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188097_skachat_video_proigruyvatel_dlya_windows_7.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185211_bayonetta_na_pc_skachat_torrent.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_off00023de4.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23DE4 3556 bytes
font_01_sfnt_off00024b67.bin
743168b85ebe8930df3d7710d14543338ae42e4c71deffa1bdb77717450753c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24B67 15092 bytes
font_02_sfnt_off0002793e.bin
01b8bd031ffbefa04837d9def94ac16b45a49b68f9a65cff2e534702ec59be23		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2793E 14892 bytes
font_03_sfnt_off0002a512.bin
4f9b61fb6861f16081eddba871b637cdcd38a7e408c050de88f874f4e5a6e6dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A512 6876 bytes
font_04_sfnt_off0002b8cd.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B8CD 6084 bytes
font_05_sfnt_off0002c862.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C862 3752 bytes

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