Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cf8c7d4beb68f66…

MALICIOUS

PDF

389.7 KB Created: 2015-08-28 01:04:49 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-09-18
MD5: a44425c147d6fb969c1b408681a70239 SHA-1: 2807c7d5d04429e515564182be930c779b3766f6 SHA-256: 0cf8c7d4beb68f6694afb22fbc095192aab36c6abfa2d3f7bb0aaa8067d38424
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 the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted, but the presence of a malicious redirector strongly suggests an attempt to deliver a secondary payload or phish credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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%BA%D0%BE%D1%82%D1%8B+%D0%B2%D0%BE%D0%B8%D1%82%D0%B5%D0%BB%D0%B8+%D1%81%D1%83%D0%B4%D1%8C%D0%B1%D0%B0+%D0%BD%D0%B5%D0%B1%D0%B5%D1%81%D0%BD%D0%BE%D0%B3%D0%BE+%D0%BF%D0%BB%D0%B5%D0%BC%D0%B5%D0%BD%D0%B8+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8 In PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788750_gde__v__gta_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788447_teremkova__nye__logopedicheskie_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788021_zvuk__starogo__budilnika_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005d33b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D33B 8324 bytes
SHA-256: b426e5691bf9f5df52f98a70a8c2f2e014b74eb874a327d080c0c82224789cea
font_01_sfnt_off0005eb68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB68 13820 bytes
SHA-256: 176c5b28376da89aa5c7d6b28b7846763f929bbf7f857e19aecca539a0b67778

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