Malicious PDF — malware analysis report

Static analysis result for SHA-256 17330071672b2224…

MALICIOUS

PDF

185.7 KB Created: 2015-07-23 21:06:30 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 8c78a958d813e8aff2ace2f0fa007b52 SHA-1: 69a21abc16a446503ddf12b50c12a95a1657dee1 SHA-256: 17330071672b22247049fc5ef4f983feebb6ba01c7d98749ba144def0ccc8420
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to known malicious infrastructure, indicating it is designed to redirect users to a harmful site. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the heuristic firings suggest a malicious redirection attempt, likely as part of a phishing or malware delivery scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%9F%D0%BE%D0%B7%D0%B4%D1%80%D0%B0%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D1%8F+%D1%81+%D0%B4%D0%BD%D0%B5%D0%BC+%D1%80%D0%BE%D0%B6%D0%B4%D0%B5%D0%BD%D0%B8%D1%8F+%D0%BD%D0%B0+%D0%BC%D0%B0%D1%80%D0%B8%D0%B9%D1%81%D0%BA%D0%BE%D0%BC+%D1%8F%D0%B7%D1%8B%D0%BA%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184642_crack_dcs_world.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184755_akt_na_spisanie_medikamentov_blank.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184807_kitayskiy_massazher_health_herald_instrukciya_na_russkom.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_off0002438e.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2438E 3556 bytes
font_01_sfnt_off00025111.bin
f3e4b0323ea553ce65a002eca283f9fbf5fa04581023e5cc7b41cc558a070bfe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25111 14524 bytes
font_02_sfnt_off00027e5b.bin
b79d56b22a3d37edc4793e81e28af2d51416733c1decb699be69ae0b1e9dff38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E5B 14468 bytes
font_03_sfnt_off0002a90a.bin
631c6ab70a9ad4664d331270ee2dab2c46dc10b3b0015c5d6a34ec2d4d3f2eaf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A90A 6980 bytes
font_04_sfnt_off0002bd1b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD1B 6084 bytes
font_05_sfnt_off0002ccb0.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCB0 3752 bytes

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