Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd861daf309ae72f…

MALICIOUS

PDF

365.5 KB Created: 2015-08-23 14:24:57 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-10-07
MD5: 05ba4123a4eebd7d5e087fbb813a114d SHA-1: 588f00018f19f6a5c9cf63fdd1721ad87d352cd0 SHA-256: dd861daf309ae72f68069ac6e43b8c2bc43d16c873ed3e8b1ff7af7add04e324
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics as malicious, specifically for containing a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is highly suspicious and likely serves as a lure to a phishing or malware distribution site. Although no scripts were explicitly extracted, the nature of the redirector suggests an attempt to execute further malicious actions upon user interaction.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9950

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%B8%D0%B3%D1%80%D1%83+%D0%BC%D0%B0%D1%81%D1%8F%D0%BD%D1%8F+%D0%B2+%D0%BF%D0%BE%D0%BB%D0%BD%D0%BE%D0%B9+%D0%B0%D1%84%D1%80%D0%B8%D0%BA%D0%B5+%D0%B1%D0%B5%D0%B7+%D0%BE%D0%B3%D1%80%D0%B0%D0%BD%D0%B8%D1%87%D0%B5%D0%BD%D0%B8%D1%8F+%D0%B2%D1%80%D0%B5%D0%BC%D0%B5%D0%BD%D0%B8+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4685/4685711_microsoft__windows__7_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4685/4685019_guberman_okun_kniga_o_vkusnoy_i_zdorovoy_zhizni_skachat.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4684/4684949_skachat_muz_klipuy_cherez_torrent_avi_format.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056c0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56C0E 8152 bytes
SHA-256: 67d5ee149cf6b7d5ba7c4a97e61e131b99c6317599f99d5210903d10441d0236
font_01_sfnt_off000583c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x583C6 16604 bytes
SHA-256: 27aa832c3ed233bced68c045f14a10062088643c945bbd939dd33e09759b6d32

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