Malicious PDF — malware analysis report

Static analysis result for SHA-256 2253409bdc64c054…

MALICIOUS

PDF

187.6 KB Created: 2015-08-08 11:48:00 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 06f9baac921ccdf3c4e4406a0eaa0f4c SHA-1: 171c65c6113b32a09ce1bb41e87a6b530ad60f00 SHA-256: 2253409bdc64c0547778a26dfbd1755b9851c90d3d6134c120074137d95b9c44
90 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a malicious redirector link to botcraftman.ru. This suggests the document's primary purpose is to lure the user to a malicious site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%BA%D0%B0%D1%80%D1%82%D1%83+%D1%80%D0%BE%D1%81%D1%81%D0%B8%D0%B8+nm2&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387809_gruppa_shokolad_vse_pesni_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385784_raspisanie_yelektrichek_masyukovschinamolodechno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384616_instrukciya_po_tehnike_bezopasnosti_na_proizvodstve.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024bf8.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24BF8 3556 bytes
font_01_sfnt_off0002597b.bin
a3f7d9d6e881f7df479b86934c6102fecedd09dfb2fb696bcb704a1e85a5d132		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2597B 14512 bytes
font_02_sfnt_off00028713.bin
2546ea39c97ec4e20bb81283d6ac242320d2cee9b180fd8dfc3e95c32a507699		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28713 14632 bytes
font_03_sfnt_off0002b23a.bin
0b28dcd210ef7f6b31d75fe5d3c6428797a791c32bbd7c1dcb7ce49dddbcbe34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B23A 6400 bytes
font_04_sfnt_off0002c472.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C472 6084 bytes
font_05_sfnt_off0002d407.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D407 3752 bytes

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