Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd56b6b4dcd5b4dc…

MALICIOUS

PDF

186.3 KB Created: 2015-08-08 10:46:01 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a03e012a2bc889fb374d5ed61d41e7dc SHA-1: 667b13dc60feec2c02e51cb2c51c18221edb96d1 SHA-256: bd56b6b4dcd5b4dcc6f2fb1b538a2b0236064ae60160f22058ff9c0720d6c3b9
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL, http://botcraftman.ru/..., is the primary indicator of compromise, likely serving as a lure to a malicious site. 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=youth+cultures+%D1%82%D0%B5%D0%BA%D1%81%D1%82+%D0%B7+%D0%BF%D0%B4%D1%80%D1%83%D1%87%D0%BD%D0%B8%D0%BA%D0%B0+9+%D0%BA%D0%BB%D0%B0%D1%81%D1%83+%D0%BA%D0%B0%D1%80%D0%BF%D1%8E%D0%BA+%D0%BF%D0%B5%D1%80%D0%B5%D0%B2%D0%BE%D0%B4&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386234_kikoin_10_klass_fizika_pdf.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386204_skachat_knigu_svetlana_lubenec_esli_vlyubishsyamolchi.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385921_tanec_krovavuyh_makov_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a8b4.bin
62bc178e3a41a58bbc285b9af0014c03068ae0a23d27c26fd16302e5ab15f79a		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A8B4 7600 bytes
font_00_sfnt_off000242c3.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x242C3 3556 bytes
font_01_sfnt_off00025046.bin
91af70189d250f62b80416d26cf6056518f507f672c617cc6299a63568d7d5dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25046 14340 bytes
font_02_sfnt_off00027d45.bin
906f80153e86ea9d56b3b9a11b2e38b1bcb603decdf09390463df54d82c20161		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D45 14780 bytes
font_04_sfnt_off0002bf3a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF3A 6084 bytes
font_05_sfnt_off0002cecf.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CECF 3752 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.