Malicious PDF — malware analysis report

Static analysis result for SHA-256 a70d1a1ba58c9cf6…

MALICIOUS

PDF

372.8 KB Created: 2015-08-20 08:20:57 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-11-02
MD5: 26cb71e3e3d2d8828a511e7e76ac99e2 SHA-1: da08c56b46f16c3f5683d21d6e4346bfd5542d9b SHA-256: a70d1a1ba58c9cf671322d65ab6b26a23c22c1d1098713e3f1d09e4b9ecd1d60
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is identified as a malicious redirector, suggesting the document's primary purpose is to lure users to a compromised or malicious site. No scripts were extracted, but the presence of the malicious link is sufficient evidence of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%87%D0%B8%D1%82+%D0%BD%D0%B0+%D0%BC%D0%BE%D0%B9+%D1%82%D0%BE%D0%BC+%D0%BD%D0%B0+%D0%B0%D0%B9%D1%84%D0%BE%D0%BD&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639595_skachat_chit_na_kontr_vars_na_dengi.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639775_vuysshaya_cel_maykl_ryey_skachat_besplatno.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639190_klyuch_produkta_windows_7_domashnyaya_bazovaya.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00058c56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58C56 8728 bytes
SHA-256: ccadcb80f83c88607e5b70de5db4125a312ffdef8dad3ca5c578d5240aa4c48f
font_01_sfnt_off0005a4e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A4E9 14764 bytes
SHA-256: 629c10ee39327e2b5c571845f83230ba0dcad45a2233858d3ae67434dcb12da8

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