Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3b63aa1a7e517ea…

MALICIOUS

PDF

185.8 KB Created: 2015-07-25 06:26:03 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 16863e32fe49e91e434a1a2dcde239ef SHA-1: f7485e5f348cddec1deb7b135d75ea284b95da96 SHA-256: d3b63aa1a7e517ea47e0e00528d84e76770915f7ba9eeb93119958e41d4b4a01
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, botcraftman.ru. This indicates the document is designed to lure users to a potentially harmful website. The ML classifier also flagged this PDF with high confidence. No scripts were extracted from this sample.

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%D1%82%D0%B0%D0%BD%D0%B4%D0%B0%D1%80%D1%82%D0%BD%D1%8B%D0%B9+c-hud+%D0%B4%D0%BB%D1%8F+gta+san+andreas&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192208_skachat_igru_dalnoboyschiki_2_po_dorogam_rossii_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4198/4198984_proga_dlya_nachisleniya_propuskov_v_lovadi.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4194/4194124_egye_kaluga_rezultatuy_po_matematike_2015.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a812.bin
6f66923c63400e20a12a2a9639b9319e0015552f77d4e7401e2a6d4c9d1e911c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A812 7292 bytes
font_00_sfnt_off000240f5.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x240F5 3556 bytes
font_01_sfnt_off00024e78.bin
860d06d347b01087896572ab7097b4ceda01e5ae0e4f9478f60c92544e6266a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E78 15132 bytes
font_02_sfnt_off00027ce3.bin
61ffc2e3f88065d300161395be6c027dffd828ed3c18c552bb49355b7ef0c2c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27CE3 14680 bytes
font_04_sfnt_off0002bd83.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD83 6084 bytes
font_05_sfnt_off0002cd18.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD18 3752 bytes

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