Malicious PDF — malware analysis report

Static analysis result for SHA-256 70e53ba38d8856fd…

MALICIOUS

PDF

353.1 KB Created: 2015-08-21 09:18:19 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 5b43a40ef445a97b8cb694cd0e3341bd SHA-1: f769de974721c9f49aa79a5e673d82d43350a831 SHA-256: 70e53ba38d8856fd2100ee9e1620a3b6ee4ce20c5c74a5ae38095d7df659d62e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. The embedded URL, http://botcraftman.ru/, is likely used to direct users to a malicious website for phishing or malware delivery. No scripts were extracted, but the presence of a malicious URL in a PDF suggests an attempt to lure the user into clicking it.

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%BB%D0%B8%D1%86%D0%B5%D0%BD%D0%B7%D0%B8%D0%BE%D0%BD%D0%BD%D1%8B%D0%B9+%D0%BA%D0%BB%D1%8E%D1%87+%D0%B4%D0%BB%D1%8F+%D0%B4%D0%BE%D0%BA%D1%82%D0%BE%D1%80+%D0%B2%D0%B5%D0%B1&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654738_sims_3_mod_na_seks.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654704_24_demona_billi_milligana_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654715_shutochnoe_pozdravlenie_na_yubiley_ot_kitaycev.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054437.bin
a4d2ac84db9cb0cb127124b7eb7fa9544ccb6d23cb5a7348526c05836f259563		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54437 7968 bytes
font_01_sfnt_off00055b25.bin
87d6e9a12143348a4822ab0fc1136f0ab9ca4cd31981ef9f023ea1ff30ef0c1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55B25 13096 bytes

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