Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a5cedaf9b7cbf2d…

MALICIOUS

PDF

184.2 KB Created: 2015-08-08 10:44:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e39883eb72e15ba76122d3749509cbd1 SHA-1: 45f20a9fb6e874e968cbe6cae5b8fe93fe1bd4b8 SHA-256: 4a5cedaf9b7cbf2d54797e6252193be4add7c356dd2a480015c67440a96977a5
92 Risk Score

Malware Insights

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

The PDF file contains an embedded link that redirects to a known malicious domain, botcraftman.ru. This indicates a phishing or redirection attempt. The ML classifier also flagged this PDF with high confidence. No scripts were extracted from this sample.

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=rio+2+3d+%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/6//4384/4384415_skachat_chit_na_tanki_onlayn_cheat_crystal_v40.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384380_nokia_suite_36110_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384159_muzuyka_saksofon_skachat_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023df1.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23DF1 3556 bytes
font_01_sfnt_off00024b74.bin
bf74a5482e84fe74cc3e92ce33e6c2929cdb52297a20045254ede2cbaeedadea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24B74 14880 bytes
font_02_sfnt_off0002795a.bin
80e62f0ffb884532c72cbea6403e209f5531dbb8538fea1854257bcaa9c065fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2795A 14468 bytes
font_03_sfnt_off0002a40a.bin
7f4ea5e95acaecf99c64738e3936471c1cd9d8309f4890dc79868a4ebd5cb010		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A40A 6676 bytes
font_04_sfnt_off0002b71e.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B71E 6084 bytes
font_05_sfnt_off0002c6b3.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C6B3 3752 bytes

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