Malicious PDF — malware analysis report

Static analysis result for SHA-256 35fc5e4bc143f41b…

MALICIOUS

PDF

352.7 KB Created: 2015-08-28 17:57:27 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 630ee4846bc34753a119ca5776d7db80 SHA-1: e00680ce7b7d81bbd5252e9031bcdb239ee352e4 SHA-256: 35fc5e4bc143f41bae576f8c2f4e3054ec6cc4d3d649f68e9e27ed236443eebf
120 Risk Score

Malware Insights

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

The PDF file was flagged as a malicious redirector by heuristics, and it contains a link to botcraftman.ru. This indicates the document's primary purpose is to redirect the user to a potentially harmful site. No scripts were extracted, and the document body was unreadable, but the presence of the malicious URL is a strong indicator of malicious intent.

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-8041408-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8041408-0
  • 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=%D0%9E%D0%B1%D1%80%D0%B0%D0%B7%D0%B5%D1%86+%D0%B4%D0%BE%D1%81%D1%8C%D0%B5+%D0%BD%D0%B0+%D1%87%D0%B5%D0%BB%D0%BE%D0%B2%D0%B5%D0%BA%D0%B0&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809694_skachat__shriftuy__dlya_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809166_flesh__pleer__11_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809546_koduy__neispravnostey_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053f00.bin
bb61dc54c84e764b8071863739b19c7ba67fb11a6d9326f27e0fad18f8ae971c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53F00 7692 bytes
font_01_sfnt_off00055554.bin
02daa9dad123f8abf92f417323c93722934fed1eb65c387f6409f68e2f756bab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55554 15012 bytes

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