Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2abe121bba388e…

MALICIOUS

PDF

187.4 KB Created: 2015-07-24 19:35:11 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: bf563cf585e9b14fa968649bb7ea6122 SHA-1: 8023411e8a79de5d34da7af566e181d2d5d26d66 SHA-256: af2abe121bba388e92a064b85538a157cd6e5e6ff2c61c8e97b1ae2e04d2cb39
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, indicating it is designed to lead users to harmful content. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of a malicious URL is sufficient to infer a phishing or malware distribution 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=%D0%A4%D0%B3%D0%BE%D1%81+%D0%B2%D1%85%D0%BE%D0%B4%D0%BD%D1%8B%D0%B5+%D0%BA%D0%BE%D0%BC%D0%BF%D0%BB%D0%B5%D0%BA%D1%81%D0%BD%D1%8B%D0%B5+%D0%BA%D0%BE%D0%BD%D1%82%D1%80%D0%BE%D0%BB%D1%8C%D0%BD%D1%8B%D0%B5+%D1%80%D0%B0%D0%B1%D0%BE%D1%82%D1%8B+2+%D0%BA%D0%BB%D0%B0%D1%81%D1%81&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192577_konverter_mswrd632_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185705_kak_chiterit_v_maynkraft_pe.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192330_skachat_igru_stalker_ten_chernobuylya_s_modami_cherez_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000249ac.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x249AC 3556 bytes
font_01_sfnt_off0002572f.bin
c657efe5e2c42b4df8d87e7082c4327cb76a78d89c8861c5cd57bdbc6070bf1b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2572F 14464 bytes
font_02_sfnt_off00028496.bin
d7ee431ea7235c35e6291e3a04ce5480ad0086bbadbd945c287e4403502e4a29		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28496 14532 bytes
font_03_sfnt_off0002af86.bin
e2ea024213216efb2c876d6654985c1375c6d3e9d6580dfbf794286547498168		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AF86 7036 bytes
font_04_sfnt_off0002c3fa.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C3FA 6084 bytes
font_05_sfnt_off0002d38f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D38F 3752 bytes

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