Malicious PDF — malware analysis report

Static analysis result for SHA-256 03982f5422d3fbb6…

MALICIOUS

PDF

182.4 KB Created: 2015-07-24 23:43:37 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 209c09df21be498a8b5a9c51af05698e SHA-1: 6e7ab9a20691b211d2e526c3b54920b4ef1403b4 SHA-256: 03982f5422d3fbb6b5887062ca5425e417b8c444a7ffe268d22f40e17e2b5f66
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded link that redirects to a known malicious domain, indicating a phishing or malware distribution attempt. The ML classifier also flagged this PDF with high confidence. No scripts were extracted from this sample, but the presence of a malicious redirector is a strong indicator 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=50+++fb2&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185436_telefonnuyy_spravochnik_goroda_temirtau.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192066_mod_na_seks_v_fallout_new_vegas.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185540_mentovskie_voynuy_5_sezon_skachat_torrent.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_off00023807.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23807 3556 bytes
font_01_sfnt_off0002458a.bin
7a682730281a94e9932a961d383e76134e72a10e142992b4408dab9c486e5f4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2458A 15228 bytes
font_02_sfnt_off000274c3.bin
9b142830d52ed99e9c2c5fb549bb1c7277af6dfabcf8cb716d3ddb316ae5a6f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x274C3 14872 bytes
font_03_sfnt_off0002a0b0.bin
64fb159865a18f6bf8c8867b4372136efde6ed448f0eb939b8b1ef1a19628cf4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A0B0 5624 bytes
font_04_sfnt_off0002affa.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AFFA 6084 bytes
font_05_sfnt_off0002bf8f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF8F 3752 bytes

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