Malicious PDF — malware analysis report

Static analysis result for SHA-256 912393883adc363d…

MALICIOUS

PDF

184.6 KB Created: 2015-08-05 14:05:47 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e3f5b9a6e4b391a5ff671a5e0610e6b1 SHA-1: 34de0e7257f49c11068b752cda4ca191b84ca3c2 SHA-256: 912393883adc363db1502d0ca85dd59b5baf6b4a71275d1b37bb3df80e56c84a
92 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector infrastructure. The ML classifier also flagged this PDF with high confidence. The primary attack vector appears to be luring the user to click on the malicious link, which is likely to lead to further compromise.

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%BF%D1%80%D0%B5%D0%B7%D0%B5%D0%BD%D1%82%D0%B0%D1%86%D0%B8%D1%8F+%D0%BF%D0%BE+%D0%B0%D0%BD%D0%B0%D0%BB%D0%B8%D1%82%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%BE%D0%B9+%D1%85%D0%B8%D0%BC%D0%B8%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304925_skachat_gta_san_andreas_zima_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304795_obuchayuschaya_programma_1s_predpriyatie_82_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304600_skachat_diablo_2_underworld_cherez_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023f3e.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23F3E 3556 bytes
font_01_sfnt_off00024cc1.bin
92a67ef7c6d17f02ac1e7fbcc50dd60acd52fad0b8d39ce6961f916510d4ce19		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24CC1 14668 bytes
font_02_sfnt_off00027a62.bin
a6626c0bd3595dc776735a93968cf26fa9368d0e017313712711ccf7ec06347e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27A62 14532 bytes
font_03_sfnt_off0002a552.bin
9453c1e264dae4df047464880e31400fb629838ad7e801989435a1f4aa89542c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A552 6744 bytes
font_04_sfnt_off0002b8a0.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B8A0 6084 bytes
font_05_sfnt_off0002c835.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C835 3752 bytes

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