Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c90079a86d65b6c…

MALICIOUS

PDF

185.4 KB Created: 2015-07-26 06:21:00 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e4cebf19174fc638c54548501de30ad9 SHA-1: 905d99736f86e5a04dbbf0cd60099a3704de2fec SHA-256: 2c90079a86d65b6c8699b32be6a169da04879cbc27b7904e09ad36547f67a853
92 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, http://botcraftman.ru/. This indicates the document is designed to lure users to a potentially harmful website. No scripts were extracted, and the document body was not parsable, limiting further analysis of the specific lure. The ML classifier also flagged this PDF with high confidence.

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%A1%D1%82%D0%B8%D1%85+%D0%BE%D0%B1+%D1%83%D0%BC%D0%B5%D1%80%D1%88%D0%B5%D0%BC+%D1%87%D0%B5%D0%BB%D0%BE%D0%B2%D0%B5%D0%BA%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4197/4197977_onlayn_programmu_dlya_nakrutki_deneg_v_avatarii.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4196/4196543_natasha_koroleva_ukradennuye_foto.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4203/4203949_koduy_na_stalker_shadow_of_chernobyl_na_oruzhie.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024097.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24097 3556 bytes
font_01_sfnt_off00024e1a.bin
0ffc03cf70b606c87c8b8b4db6c674fdb6311276365faeddb36a7da126bf073a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E1A 15572 bytes
font_02_sfnt_off00027e22.bin
6b4fe88cc06c6695e814bda583852903ca01c71ccd34a42f1030d6e16d0f4c10		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E22 14588 bytes
font_03_sfnt_off0002a934.bin
4c56e9c42195e4ce59ead7d777961075409871af6018f148a463f013720203c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A934 6488 bytes
font_04_sfnt_off0002bbba.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BBBA 6084 bytes
font_05_sfnt_off0002cb4f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB4F 3752 bytes

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