Malicious PDF — malware analysis report

Static analysis result for SHA-256 f91c87a58b56edd7…

MALICIOUS

PDF

356.3 KB Created: 2015-08-21 09:24:46 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: a153834d9135d6aa80e59b2090bc4b7e SHA-1: 6250712c67381581d8c075071942f2450a052b3d SHA-256: f91c87a58b56edd70e9611a31a6cde542ec7f19bd414e45fb40678294dcbba8e
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 infrastructure. The embedded URL points to 'botcraftman.ru', which is associated with malicious activity. The document body is heavily obfuscated and does not provide clear user-facing text, but the presence of the malicious link strongly suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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=%D0%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%81%D0%B8%D0%BC%D1%81+4+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%BD%D0%B0+%D0%BA%D0%BE%D0%BC%D0%BF%D1%8C%D1%8E%D1%82%D0%B5%D1%80+%D0%B1%D0%B5%D0%B7+%D1%81%D0%BC%D1%81&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654715_shutochnoe_pozdravlenie_na_yubiley_ot_kitaycev.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654790_packard_bell_ze7_drayvera.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054a18.bin
6f225d9cdadf05defe1796fff573b819ac5dfae9b64ded439efd501b046a245e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54A18 8944 bytes
font_01_sfnt_off000563e4.bin
aea888417eab9ad2b410ee07f797427a323e29ba8d9db9792cb6aa5f9e6af68b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x563E4 14936 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.