Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d19987ace99b438…

MALICIOUS

PDF

188.5 KB Created: 2015-07-25 02:55:28 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a4953737dae61076bc4af3756b8d9df4 SHA-1: a6335158fbf09435523f78d7d736d201b279b595 SHA-256: 7d19987ace99b4385da3541618656c8a54b7670031baa1a9c098566610e38ccb
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by multiple heuristics as malicious, specifically for containing a link to known malicious redirector infrastructure. The embedded URL points to 'botcraftman.ru', which is identified as a malicious redirector. This suggests the document is part of a phishing or malware distribution campaign, likely delivered as a spearphishing attachment.

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BC%D1%83%D0%B7%D1%8B%D0%BA%D1%83+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%BD%D0%B0+%D0%BA%D0%BE%D0%BC%D0%BF%D1%8C%D1%8E%D1%82%D0%B5%D1%80+%D0%B1%D0%B5%D0%B7+%D1%80%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D1%80%D0%B0%D1%86%D0%B8%D0%B8+%D0%B8+%D1%81%D0%BC%D1%81&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4193/4193163_amar_hayam_vuyskazuyvaniya_pro_zhizn.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192287_skachat_patch_dlya_pes_13_rfpl_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4197/4197960_ikonki_skachat_png_200x200_pikseley_200_kilobayt.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_off00024e7c.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E7C 3556 bytes
font_01_sfnt_off00025bff.bin
1d3e7e9d5dccd199f7e114083b5c04ebfcd22520ad6849c7c19d4caadcdfa94d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25BFF 14408 bytes
font_02_sfnt_off00028908.bin
4ae165705ecc41720893a92c6e94e3ee89b3be36a12e4a920505046f59c61edc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28908 14468 bytes
font_03_sfnt_off0002b3b6.bin
65542ab989d36ffe01b18777c60c4dcd05d8ac809143c1d786dff3db1cb0f7d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B3B6 7116 bytes
font_04_sfnt_off0002c860.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C860 6084 bytes
font_05_sfnt_off0002d7f5.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D7F5 3752 bytes

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