Malicious PDF — malware analysis report

Static analysis result for SHA-256 65f382c0857292ca…

MALICIOUS

PDF

347.9 KB Created: 2015-08-20 08:55:26 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 364e93f762e3080d70291371f2bcafaf SHA-1: 927eb647ecb98adb4d80cce6be8dd4badfe3069f SHA-256: 65f382c0857292ca4224deef56cc5dd9dd75005a06894cbd0f19adb74532387d
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. While no scripts were explicitly extracted, the PDF structure and the malicious URL strongly suggest a phishing or redirection attack. The ML classifier also flagged this PDF with high confidence.

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%A0%D0%B5%D0%B3%D1%83%D0%BB%D1%8F%D1%82%D0%BE%D1%80+%D0%BE%D0%B1%D0%BE%D1%80%D0%BE%D1%82%D0%BE%D0%B2+%D1%8D%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%B4%D0%B2%D0%B8%D0%B3%D0%B0%D1%82%D0%B5%D0%BB%D1%8F+12%D0%B2&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639054_skachat_serial_korabl_2_sezon_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639381_obrazec_harakteristiki_na_mnogodetnuyu_mat_dlya_nagrazhdeniya.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639103_skachat_igru_gta_san_andreas_forsazh_5_cherez_torrent_besplatno.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052ced.bin
7bba91e5b4b16d12978c26d28cfa0475b9ee50b4b80023687ea7d951a9be4bdd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52CED 7832 bytes
font_01_sfnt_off00054409.bin
d426a0872edde9f50d62352512189ece1f3ca4cda6057361d92705ffc11efb8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54409 13808 bytes

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