Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d445e9acbe5c07e…

MALICIOUS

PDF

186.2 KB Created: 2015-08-08 10:58:33 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 03adc8b8f2a2cc2168c4349950da9788 SHA-1: 08bb545444daab0a49156dbbd6af08191a3a7e4d SHA-256: 9d445e9acbe5c07e54a35e908229b5401d61cf42156b3110d7abc4e8c966bdb7
90 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL, http://botcraftman.ru/, is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted, limiting further analysis of the payload.

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+%D1%81%D0%B8%D0%B3%D0%BD%D0%B0%D0%BB%D0%B8%D0%B7%D0%B0%D1%86%D0%B8%D1%8E+%D0%BD%D0%B0+%D1%82%D0%B5%D0%BB%D0%B5%D1%84%D0%BE%D0%BD+%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//4386/4386647_coreplayer__windows_ce_60.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386136_nod32_dlya_windows_7_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385960_tentacle_wars_prohozhdenie.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000244ac.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x244AC 3556 bytes
font_01_sfnt_off0002522f.bin
7a1c076a9b0bc61b16f862113929606df8f72c0c4afe5def61790a0cbcf19c8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2522F 14928 bytes
font_02_sfnt_off00028071.bin
4ae165705ecc41720893a92c6e94e3ee89b3be36a12e4a920505046f59c61edc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28071 14468 bytes
font_03_sfnt_off0002ab1f.bin
c530d53c5a0dd1b17416ace4477cd217df5efb151162413fee8e5bbcddbca80d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB1F 6912 bytes
font_04_sfnt_off0002bf0f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF0F 6084 bytes
font_05_sfnt_off0002cea4.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CEA4 3752 bytes

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