Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e46d254a6f17d76…

MALICIOUS

PDF

186.9 KB Created: 2015-08-05 13:19:24 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 26d262cba34738a115cb2903050cbe88 SHA-1: 71e34f9e3bb7b887b6aee6f7fc1472a07cd95e89 SHA-256: 8e46d254a6f17d76d79fda4fde496725f0d0d6c449f4cb37e8cfc5d46ae45751
92 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating a phishing or malware distribution attempt. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

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+%D0%B8%D0%B3%D1%80%D1%83+%D0%B6%D0%B8%D0%B2%D0%B0%D1%8F+%D1%81%D1%82%D0%B0%D0%BB%D1%8C+%D0%BD%D0%B0+%D0%BA%D0%BE%D0%BC%D0%BF%D1%8C%D1%8E%D1%82%D0%B5%D1%80+%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//4304/4304450_temuy_dlya_nokia_s601_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304434_uzoruy_kryuchkom_dlya_tolstoy_pryazhi_so_shemami.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304451_bangkok_hilton_skachat_torrent_v_horoshem_kachestve.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000246c1.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x246C1 3556 bytes
font_01_sfnt_off00025444.bin
208b7d06cec6bb743cc32c8e6a6d98176dd09c44c63785a548bbd16bad6014d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25444 14780 bytes
font_02_sfnt_off00028219.bin
ba3cb981e1f2463b2c264d3e10a61f97939051f7b2910811e6692948e05aa41b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28219 14468 bytes
font_03_sfnt_off0002acc8.bin
304ecc3f9d7336ae64ce150c27251a877026fe05b56c6f2b7b341beb6542db02		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ACC8 7268 bytes
font_04_sfnt_off0002c1f7.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C1F7 6084 bytes
font_05_sfnt_off0002d18c.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D18C 3752 bytes

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