Malicious PDF — malware analysis report

Static analysis result for SHA-256 1779a6b079bf4155…

MALICIOUS

PDF

354.2 KB Created: 2015-08-21 17:24:27 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 8a60e06894dc01afc3e92e56e8eea3ef SHA-1: 56a13ec090f61a8a3667d05fe629fc0ceaf8120a SHA-256: 1779a6b079bf41557e1be18395d7b872eac11e839bb4b8bb52e43c93181ac7b5
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

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 identified as a malicious redirector, suggesting the document's purpose is to lure users to a harmful destination. No scripts were extracted, and the document body was unreadable, but the presence of the malicious link is sufficient evidence of malicious intent.

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%9F%D1%83%D0%B1%D0%BB%D0%B8%D1%87%D0%BD%D0%B0%D1%8F+%D0%BA%D0%B0%D0%B4%D0%B0%D1%81%D1%82%D1%80%D0%BE%D0%B2%D0%B0%D1%8F+%D0%BA%D0%B0%D1%80%D1%82%D0%B0+%D0%BA%D0%B0%D0%B7%D0%B0%D0%BD%D1%8C&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4655/4655140_tdu_2_mod_russian_car_lada_2106_vaz_2106_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4659/4659513_skachat_igru_fifa_14_world_cup_brazil_cherez_torrent_na_pk.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4656/4656683_simulyator_boya_kodeks_pirata.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053f47.bin
f0ae461f96c033e5b29e9240ac998e8cbccabf99c0f350e6266285f17e1ce189		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53F47 7808 bytes
font_01_sfnt_off0005563b.bin
c1a537ac6c7c69888361afeecf02d70db98ab78f5e1cc68bd7829d088638f000		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5563B 16796 bytes

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