Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cdf4734ccba83f5…

MALICIOUS

PDF

185.1 KB Created: 2015-07-24 19:36:09 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c2fb7d58373210d4c669649aca9eda70 SHA-1: 38189494a80337e09d71b5b10173b6a63be60330 SHA-256: 0cdf4734ccba83f5200b5f51cd4ce666ab039f6b0e9f41b85869e08a7fdc4b65
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL is likely part of a phishing or malware distribution chain, aiming to lure the user to a malicious site.

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=Root+%D0%BF%D1%80%D0%B0%D0%B2%D0%B0+%D0%BD%D0%B0+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4+%D0%B1%D0%B5%D0%B7+%D0%BA%D0%BE%D0%BC%D0%BF%D1%8C%D1%8E%D1%82%D0%B5%D1%80%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192766_privuychka_zhenitsya_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191468_proshivka_dlya_nokia_5530_xpressmusic_poslednyaya.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4193/4193158_express_tools_dlya_autocad_2011_skachat.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_off0002411b.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2411B 3556 bytes
font_01_sfnt_off00024e9e.bin
e455527ba3b3a563ff7bf4de66eb5f39a13e2bc1686bc3ef0894ed83b49ad5e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E9E 14312 bytes
font_02_sfnt_off00027b14.bin
3358e71d31e6b2f7ddef4f863fd51bf079b7a44dd5f64b5662fa71e67a231235		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27B14 14576 bytes
font_03_sfnt_off0002a624.bin
deec9c628c0085fd8584aada7a5ee9daab08a885c89a7f95fb9b13515146cd2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A624 7020 bytes
font_04_sfnt_off0002ba6b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA6B 6084 bytes
font_05_sfnt_off0002ca00.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA00 3752 bytes

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