Malicious PDF — malware analysis report

Static analysis result for SHA-256 ead2d321ee74fcd9…

MALICIOUS

PDF

185.4 KB Created: 2015-07-24 04:44:20 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c19a9694529d7056c13d9787b482d065 SHA-1: 7f1c0faababc353e4d784ac33cbeb970ac8880e9 SHA-256: ead2d321ee74fcd9bbb6878c1f210a4c24e2adf4e8baabecf200ae809c528de6
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 malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted, and the document body was not parsable.

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%BE%D1%82%D1%87%D0%B5%D1%82+%D0%BF%D0%BE+%D0%BF%D1%80%D0%B0%D0%BA%D1%82%D0%B8%D0%BA%D0%B5+%D0%B2+%D1%80%D0%B8%D1%8D%D0%BB%D1%82%D0%BE%D1%80%D1%81%D0%BA%D0%BE%D0%B9+%D1%84%D0%B8%D1%80%D0%BC%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185495_maykl_gerber_predprinimatelskiy_mif_audiokniga.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187453_russkiy_yazuyk_vuysshaya_shkola_dudnikov_arbuzova_vorozhbickaya.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184507_age_of_empires_4_skachat_besplatno_russkaya_versiya_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000243b7.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x243B7 3556 bytes
font_01_sfnt_off0002513a.bin
c439456408227208a59333a98688ee9103c4f5cf3390112200185a92f72b7ce7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2513A 14044 bytes
font_02_sfnt_off00027daf.bin
82e1ef65e79e4858764d30489de1a6bb262c3a4ae3ff71e2763dbba2a8765446		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27DAF 14468 bytes
font_03_sfnt_off0002a863.bin
fb5ee13d10546852a8031266406f0767b53051c016ce619e4d00e6b0bb8bffbb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A863 6784 bytes
font_04_sfnt_off0002bbf8.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BBF8 6084 bytes
font_05_sfnt_off0002cb8d.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB8D 3752 bytes

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