Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3b63d32dcaa2262…

MALICIOUS

PDF

359.5 KB Created: 2015-08-26 11:35:19 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 99ce2a13aa6058171f6a787b1aafb686 SHA-1: 2103587752318bec03d9936113eaee62f6a998a1 SHA-256: a3b63d32dcaa22621c7a161cff752d743260df92a5003478f650fb06a0dd1253
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, botcraftman.ru. This indicates the document is likely a lure designed to redirect users to a malicious website for phishing or malware delivery. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

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=prodigy+%D0%B4%D0%B8%D1%81%D0%BA%D0%BE%D0%B3%D1%80%D0%B0%D1%84%D0%B8%D1%8F+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751509_anna__berezina__tdk_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4752/4752191_kak__vesti__buhgalterskiy_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4753/4753678_skachat__mortal__kombat_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055721.bin
8d1e34207b8372f6d081bd5668583ec7ed6c8b159ab65df67676fc5d1ce445d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55721 8060 bytes
font_01_sfnt_off00056e65.bin
b386ffbd3940ffe17a240d47c049d79f8936a7e5437b0062c4fb8600dd3f3e10		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56E65 15816 bytes

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