Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c91e462b8aa1289…

MALICIOUS

PDF

186.3 KB Created: 2015-07-25 03:18:19 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 24614b5f54017316d9a98271cf7fa2ec SHA-1: 8e743d43b6ccb9f7039369fdad122ea67dffaa8c SHA-256: 5c91e462b8aa12899d46aa264c63fcb870a2e041d99689c2688bb37c3122c69c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics as malicious, specifically for containing a link to a known malicious redirector. The embedded URL `http://botcraftman.ru/...` is the primary indicator of malicious intent. While no scripts were extracted, the presence of this malicious link suggests the document is designed to lure users to a compromised site, likely for phishing or malware distribution.

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%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D1%83+%D0%B4%D0%BB%D1%8F+%D1%81%D0%BA%D0%B0%D1%87%D0%B8%D0%B2%D0%B0%D0%BD%D0%B8%D0%B5+%D1%81+%D1%8E%D1%82%D1%83%D0%B1%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185601_jetclean_pro_klyuchzip.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191222_skachat_igru_drayver_san_francisko_2_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192623_lock_on_goryachie_skaluy_skachat_torrent.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_off000244ab.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x244AB 3556 bytes
font_01_sfnt_off0002522e.bin
9a60115ef568d20c0cdb38cc7781e4261fb1454307a7316d410810ce9f3fdeee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2522E 14676 bytes
font_02_sfnt_off00027fac.bin
4ae165705ecc41720893a92c6e94e3ee89b3be36a12e4a920505046f59c61edc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27FAC 14468 bytes
font_03_sfnt_off0002aa5a.bin
57db9fc83a472e439b3e263cfe61fd77ccd7869c6f900d5e8ef015aa57d30961		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA5A 7168 bytes
font_04_sfnt_off0002bf42.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF42 6084 bytes
font_05_sfnt_off0002ced7.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CED7 3752 bytes

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