Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d784fa3fb2f5129…

MALICIOUS

PDF

186.1 KB Created: 2015-07-23 21:04:27 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c50ae76dabdfe2ca2c8a13921004a9d3 SHA-1: 34bb7fe4e65e67f413958d672e8be01ae319cff9 SHA-256: 1d784fa3fb2f5129d78ec47836c848e442348c028045bbec15dd3d31746dca3f
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ClamAV and a machine learning classifier, indicating malicious content. A critical heuristic identified a direct link to a known malicious redirector at 'http://botcraftman.ru/'. This suggests the PDF is intended to redirect users to a malicious site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-8785912-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8785912-0
  • 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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BC%D0%BE%D0%B4+%D0%BD%D0%B0+%D1%81%D0%BA%D0%B0%D0%B9%D1%80%D0%B8%D0%BC+%D1%81%D1%82%D0%B0%D1%82%D1%8C+%D0%BA%D0%BE%D1%80%D0%BE%D0%BB%D0%B5%D0%BC+%D1%80%D0%B8%D0%B2%D0%B5%D1%80%D1%85%D0%B5%D0%BB%D1%8C%D0%BC%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184420_soni_vegas_pro_11_skachat_besplatno_na_russkom.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184658_skachat_pesnyu_chernuyy_pistolet.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184747_testuy_po_russkomu_yazuyku_onlayn_ct_v_belarusi.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024401.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24401 3556 bytes
font_01_sfnt_off00025184.bin
728ee122c82a55edef3fc4581ee80aa8f22dba305dfac7e54afb5ee00f82a80a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25184 14944 bytes
font_02_sfnt_off00028058.bin
a6626c0bd3595dc776735a93968cf26fa9368d0e017313712711ccf7ec06347e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28058 14532 bytes
font_03_sfnt_off0002ab48.bin
c9b9d41584c409b787de90674c70efe98a8c735ab464da0d3ffabc0cc8acabe5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB48 6760 bytes
font_04_sfnt_off0002beba.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BEBA 6084 bytes
font_05_sfnt_off0002ce4f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE4F 3752 bytes

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