Malicious PDF — malware analysis report

Static analysis result for SHA-256 f258e93abd2688a0…

MALICIOUS

PDF

347.1 KB Created: 2015-08-20 08:06:27 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-11-02
MD5: 2b516008d452fa3f39dcdabae52089cf SHA-1: 9f6bf31636983cac65598a66a4a624f02bc7cbfc SHA-256: f258e93abd2688a03b51c6d46e9da29b35028f5559d651bb301cf07f8b38c040
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating a malicious redirector link to botcraftman.ru. This suggests the document's primary purpose is to lure the user to this malicious site. No scripts were extracted, but the presence of a malicious URL is a strong indicator of malicious intent, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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%BA%D0%BE%D0%BD%D1%82%D1%80+%D0%B2%D0%B0%D1%80%D1%81+%D0%BD%D0%B0+%D0%B4%D0%B5%D0%BD%D1%8C%D0%B3%D0%B8&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639435_skolko_nuzhno_reshit_zadaniy_po_matematike_egye_2015_na_4.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639563_egye_po_geografii_rezultatuy.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639471_devochki_fotomodeli_yunuye.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052924.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52924 7620 bytes
SHA-256: 552bbd11aea1e725cefc9ec38214647ad2ef5dd3cfe02a4039c1a371d5e40922
font_01_sfnt_off00053f22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53F22 14292 bytes
SHA-256: 370846717ccb7b97b184b8ac66d70f70e7ce869b047e3ce36b57c7ce2e75c39d

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