Malicious PDF — malware analysis report

Static analysis result for SHA-256 eff57d78cfd19f7b…

MALICIOUS

PDF

347.9 KB Created: 2015-08-27 09:53:12 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 7e16a471ed89dd529d1f879ccf24e555 SHA-1: 4144ad68568a85eb66f0000d2c0e7bd30a4d3bca SHA-256: eff57d78cfd19f7bae9154edd966a776afc1697378aab99b4a3dd5083ad6f415
60 Risk Score

Malware Insights

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

The PDF file contains an embedded link that points to a known malicious redirector infrastructure. This suggests the document is designed to lure the user to a potentially harmful website. The file was generated by wkhtmltopdf, which can sometimes be used to package malicious content.

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=%D1%81%D0%B5%D1%80%D0%B2%D0%B5%D1%80+%D1%82%D0%B5%D1%80%D0%BC%D0%B8%D0%BD%D0%B0%D0%BB%D0%BE%D0%B2+%D0%BD%D0%B0+windows+xp&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4772/4772002_dogovor__bezvozmezdnogo__polzovaniya_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4771/4771939_tanki__onlayn__chit_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4771/4771984_adobe__acrobat__x_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000527f0.bin
6e599a8febbc6163d9f0a295d10d14601d4f8adfb982600c72944ed6533ad430		 pdf-font-stream PDF embedded font (sfnt) at offset 0x527F0 9068 bytes
font_01_sfnt_off00054155.bin
f4d217e3cd5f32adec31cf8ca05d31c9e83ddc66affde47f0f11ec4f9aa2b4a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54155 15792 bytes

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