Malicious PDF — malware analysis report

Static analysis result for SHA-256 e472384dad1f8792…

MALICIOUS

PDF

187.6 KB Created: 2015-07-23 21:05:57 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a516904949751316bf0693af30b8a284 SHA-1: 7d86ebe6822122c1735ad090985baf2917142ab2 SHA-256: e472384dad1f87925aef85cd88f4758d0e7ac05e014f0a5a51d97d222de15636
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 redirector URL is likely used to funnel users to a malicious site, potentially for phishing or malware distribution. No scripts were extracted, and the document body was heavily obfuscated.

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=Farming+simulator+2011+%D1%80%D1%83%D1%81%D0%B8%D1%84%D0%B8%D0%BA%D0%B0%D1%82%D0%BE%D1%80+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184831_skachat_kartuy_dlya_navitel_belarus_2015_nm3.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184707_shablon_dlya_raspisaniya_urokov_s_tekstom_dlya_zamenuy.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184298_interaura_neyronastroi_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002ad68.bin
70b5c287f6523ffb334a4050f82f1849cc18af265e243c237e7406d8c63d5e5d		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2AD68 7772 bytes
font_00_sfnt_off000245d9.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x245D9 3556 bytes
font_01_sfnt_off0002535c.bin
c28866e2db563f1bb0477d320f825e045adf6f48e02822d2841880f0978bc231		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2535C 15012 bytes
font_02_sfnt_off000281b1.bin
3fb587286e4d8e174f190224abe9c1b64793e310005f1dfe2caffed3e8af0860		 pdf-font-stream PDF embedded font (sfnt) at offset 0x281B1 14792 bytes
font_04_sfnt_off0002c47f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C47F 6084 bytes
font_05_sfnt_off0002d414.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D414 3752 bytes

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