Malicious PDF — malware analysis report

Static analysis result for SHA-256 763c174dca640a33…

MALICIOUS

PDF

185.0 KB Created: 2015-07-25 02:51:35 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c1ffae1f1657a1fb49d566fb6c0b2e97 SHA-1: d1152a5b8eee5e672e9632d2c7a46826bef93b58 SHA-256: 763c174dca640a330d32198b64c1a6044e2d226418a58a993097158fb4435c04
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a malicious redirector heuristic, indicating that it contains a link to known malicious infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL `http://botcraftman.ru/...` is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution page.

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%A1%D1%86%D0%B5%D0%BD%D0%B0%D1%80%D0%B8%D0%B9+%D0%B4%D0%BD%D1%8F+%D1%80%D0%BE%D0%B6%D0%B4%D0%B5%D0%BD%D0%B8%D1%8F+%D0%BF%D0%BE%D0%B4%D1%80%D1%83%D0%B3%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4196/4196269_shtatnaya_magnitola_ford_fokus_2_6000cd_instrukciya.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4195/4195854_proshivka_shturmann_link_300.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4196/4196220_pesni_natali_skachat.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024133.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24133 3556 bytes
font_01_sfnt_off00024eb6.bin
54a15d6e0580801a3118dbb74d4cfddc20e512d65781f29755d3c2d945fb1d0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24EB6 14700 bytes
font_02_sfnt_off00027d1c.bin
b79d56b22a3d37edc4793e81e28af2d51416733c1decb699be69ae0b1e9dff38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D1C 14468 bytes
font_03_sfnt_off0002a7cb.bin
9e3fbceb35c0d26876eb38ac7e8049aa47850378d5375b0af0cd682491991bba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A7CB 6484 bytes
font_04_sfnt_off0002ba27.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA27 6084 bytes
font_05_sfnt_off0002c9bc.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C9BC 3752 bytes

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