Malicious PDF — malware analysis report

Static analysis result for SHA-256 e28ee058c4b4ea5c…

MALICIOUS

PDF

185.0 KB Created: 2015-08-08 10:37:57 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: eb98c4523cccf9365d562f2bed06a0f8 SHA-1: 17a0f5cb68e0fd65b95d7a48ed8285f9bbbc285d SHA-256: e28ee058c4b4ea5cd51aed8cb20ad53f754fb1a4c05a852357b7234079fbda6e
92 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to a known malicious redirector at http://botcraftman.ru/. The ML classifier also assigned a high probability of maliciousness. No scripts were extracted from this sample, but the presence of the malicious URL strongly suggests a phishing or malware delivery attempt.

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%B0%D0%B2%D1%82%D0%BE%D0%BA%D0%B0%D0%B4+2010+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4300/4300333_shtatnoe_raspisanie_forma_t3_blank_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384212_skachat_film_raskayanie_2014_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385368_diablo_3_piratka_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024230.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24230 3556 bytes
font_01_sfnt_off00024fb3.bin
0ed9914152a11fed6698b4c2ca38b7fe7688710c8e9ce8310a07e0641b8b4101		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24FB3 14632 bytes
font_02_sfnt_off00027d6d.bin
4699a1813705a32a6f2742c2e791f761dc4cbad914ceaac84fd2ef95741ddd6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D6D 14468 bytes
font_03_sfnt_off0002a81f.bin
69b0b202eb06792b289dda10203ec335d3f056ed9aca117f95a89e9b650a91a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A81F 6312 bytes
font_04_sfnt_off0002ba07.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA07 6084 bytes
font_05_sfnt_off0002c99c.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C99C 3752 bytes

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