Malicious PDF — malware analysis report

Static analysis result for SHA-256 eade4d9298d6050b…

MALICIOUS

PDF

185.4 KB Created: 2015-07-23 20:45:10 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: aee2d1ac643017c5c8ddbe1a4ed7c591 SHA-1: c8ec20ca40e57c9fd68fe13a3f0f9d30015d8009 SHA-256: eade4d9298d6050ba0945ba49dce77db5252134f67bb92a4da97cda0273fab9b
90 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The ML classifier also strongly flagged this PDF as malicious. The primary IOC is the malicious URL, which is likely used to lure victims to a phishing site or to download further malicious content. No scripts were extracted, but the PDF structure and the malicious URL are sufficient indicators of 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=%D0%90%D0%BA%D1%83%D0%BD%D0%B8%D0%BD+%D0%BE%D1%85%D0%BE%D1%82%D0%B0+%D0%BD%D0%B0+%D0%BE%D0%B4%D0%B8%D1%81%D1%81%D0%B5%D1%8F+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183195_lada_kalina_shema_yelektrooborudovaniya.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184358_zuppacraft_125_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184514_adobe_photoshop_cs7_rus_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000242e2.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x242E2 3556 bytes
font_01_sfnt_off00025065.bin
eabaeb62658cfed73a0d6976670c9d873d26f1bdeb9b33102b0293022748a615		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25065 14920 bytes
font_02_sfnt_off00027e7c.bin
858de1ea0edee6589051d6c5805376be02fce034b392ea3476abe13984ffa707		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E7C 14532 bytes
font_03_sfnt_off0002a969.bin
ab7f027b51ba9652634be7d02cc6e7d93086821a3a2e6b3b266f36a067c155cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A969 6416 bytes
font_04_sfnt_off0002bbaa.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BBAA 6084 bytes
font_05_sfnt_off0002cb3f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB3F 3752 bytes

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