Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7d8f32675aaea48…

MALICIOUS

PDF

335.7 KB Created: 2015-08-28 17:32:00 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 79f013b1b47dc35f4bac8a7bc229109a SHA-1: 2fea2dd2e37a2cc0a6d3691c1a22fead4fcaac29 SHA-256: a7d8f32675aaea482a74f4f9ff3d66be1927fc7845bccd5935aa300f221c4b54
60 Risk Score

Malware Insights

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

The PDF file contains an embedded link identified as a known malicious redirector. This heuristic firing strongly suggests the document's purpose is to lure the user to a malicious site. No scripts were extracted, and the document body was unreadable, limiting further analysis of the exact lure. The primary IOC is the malicious redirector URL.

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%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B7%D0%B2%D1%83%D0%BA+%D1%81%D0%B2%D0%B8%D1%81%D1%82&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809190_avtovokzal__biysk_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809170_skachat__mod__na_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809213_kitayskie__poiskoviki__na_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004ff61.bin
6aacd63998960ad022c520a5c287770968afc353317a9880e4192c2b7497dbe3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4FF61 7724 bytes
font_01_sfnt_off0005162b.bin
99197f880ef88322713fbf7dd7aec60dca4c609ff05ae4c1a21474c354431055		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5162B 12720 bytes

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