Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab87998ff01a49b5…

MALICIOUS

PDF

388.3 KB Created: 2015-08-21 09:31:25 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 1235033f3c171343d7cb86975001506c SHA-1: 35c79939e6b90496c76fdfb6fe9174e3b8665705 SHA-256: ab87998ff01a49b5376c0968f87c3b8048d5c9d589886a4c38f6e4d053dcc9fe
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier and contains a critical heuristic indicating 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 for phishing or malware delivery. No scripts were extracted, and the document body was heavily obfuscated, preventing further analysis of its specific content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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%BE%D1%84%D0%BE%D1%80%D0%BC%D0%BB%D0%B5%D0%BD%D0%B8%D0%B5+%D0%B3%D1%80%D1%83%D0%BF%D0%BF%D1%8B+%D0%BF%D1%87%D0%B5%D0%BB%D0%BA%D0%B0+%D0%B2+%D0%B4%D0%B5%D1%82%D1%81%D0%BA%D0%BE%D0%BC+%D1%81%D0%B0%D0%B4%D1%83+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654744_skachat_mod_tropik_kraft_na_maynkraft_152.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654794_da_pridet_prorok_2_dlya_stalker_zov_pripyati_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654834_euro_truck_simulator_2_kod_aktivacii.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005c7be.bin
48f4ccd8889ddc2f1fec8f2b0d63ac7c0819050ed5bbf86d55bb0a7fb50e3b12		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C7BE 8644 bytes
font_01_sfnt_off0005e136.bin
f07a3dcfbdb2bbd018331d19f58881cb8e10cc3a6bcdddde2b7c1e00c2c5d0ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E136 15748 bytes

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