Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee1381a3e08f03a4…

MALICIOUS

PDF

186.2 KB Created: 2015-07-24 15:36:18 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 9774dd57c2d982282fc468ae18aa4bf7 SHA-1: 0b2d87ca950a2b374cc4ff9d41a3297bd3d53065 SHA-256: ee1381a3e08f03a42ba2b86214bdd3b2f36609bdb12f3bc744c22c696a0c8ce8
90 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, http://botcraftman.ru/, which is indicative of a phishing or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific lure.

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=five+finger+death+punch+%D0%B4%D0%B8%D1%81%D0%BA%D0%BE%D0%B3%D1%80%D0%B0%D1%84%D0%B8%D1%8F+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%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://img1.liveinternet.ru/images/attach/c/5//4185/4185405_novuyy_otchet_esv_v_mindohodov.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188314_adobe_after_effects_cs6_skachat_torrent_32bit.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191425_v_tuylu_vraga_2_diversantuy_3_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024052.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24052 3556 bytes
font_01_sfnt_off00024dd5.bin
fe1d0c21fbf74fca8c81ee455acbb770318420b343a5ba21b3f639f8f7916bf7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24DD5 14680 bytes
font_02_sfnt_off00027b78.bin
6ba9d9086823ebc260619cb412561b981536a82f05fc272d3d6e09f169f78f46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27B78 14876 bytes
font_03_sfnt_off0002a75b.bin
c1071a334c96f489bb334255b06b01b0a470e82562f8e78084801ababc63ed4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A75B 7960 bytes
font_04_sfnt_off0002beef.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BEEF 6084 bytes
font_05_sfnt_off0002ce84.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE84 3752 bytes

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