Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d3b463014694b6f…

MALICIOUS

PDF

186.4 KB Created: 2015-07-25 06:17:41 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 17606b7a26d02f332d14db861f327285 SHA-1: a7a5fa8c36c49fb2100c5caab17019b014696c53 SHA-256: 4d3b463014694b6fe86481f23a12d84f40f2f499916e2cf833cbef1cb119c230
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. The embedded URL, http://botcraftman.ru/, is likely part of a phishing or malware distribution scheme. No scripts were extracted, but the presence of the malicious link strongly suggests a malicious 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=playmemories+home+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%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://img1.liveinternet.ru/images/attach/c/5//4191/4191909_gazeta_vsyakaya_vsyachina_chapaevsk_obyavleniya.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4196/4196298_kod_aktivacii_dlya_cubase_7.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4198/4198863_my_little_pony_in_the_sims_skachat_igru.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a88a.bin
b0694e7d392a51b537e462a3c1ed8ef40e800134e1d304e6e6f7b2d535dd84fb		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A88A 7904 bytes
font_00_sfnt_off00024272.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24272 3556 bytes
font_01_sfnt_off00024ff5.bin
fe1baae812e08e01f148d9aedc0451c7237d11f0a27780d962ad03ee2ebec4b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24FF5 14804 bytes
font_02_sfnt_off00027d2d.bin
d5a4d653362adbea6abf7c5f92a1c9d7ff12c3ed0f12b5f7091859c51144343d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D2D 14872 bytes
font_04_sfnt_off0002bfe9.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BFE9 6084 bytes
font_05_sfnt_off0002cf7e.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF7E 3752 bytes

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