Malicious PDF — malware analysis report

Static analysis result for SHA-256 b354300e254b0603…

MALICIOUS

PDF

184.5 KB Created: 2015-08-05 17:26:52 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 9bd261d5fcde91de2bdc0d1366db636c SHA-1: 308ab9eeac15ca6b907c9c5dd3e3fe46948fce00 SHA-256: b354300e254b060313b668fbb40d8fb9255d711c9796fc5aee8c4702c99ae65f
90 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is confirmed as malicious. This suggests the document's primary purpose is to lure the user to a malicious site, likely for phishing or malware delivery. No scripts were extracted, and the document body was truncated, limiting further analysis of the delivery mechanism.

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%B1%D1%80%D0%BE%D1%81%D0%B8%D1%82%D1%8C+%D0%BA%D1%83%D1%80%D0%B8%D1%82%D1%8C+%D0%B0%D0%BB%D0%BB%D0%B5%D0%BD+%D0%BA%D0%B0%D1%80%D1%80+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305776_skachat_xray_dlya_minecraft_147.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304868_monopoliya_skachat_besplatno_na_russkom.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306556_skachat_programmu_dlya_dabstepa_na_kompyuter.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024104.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24104 3556 bytes
font_01_sfnt_off00024e87.bin
791900b729b1e42a7a19c163452843e69dba5810b471b258d1b32371bd4d3611		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E87 14592 bytes
font_02_sfnt_off00027b9b.bin
a9770cbb19a982a1ca245ae9dd57c2ebe78e8510dfe5e68aa43f25edc86204a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27B9B 14468 bytes
font_03_sfnt_off0002a64d.bin
e8cba017a76cec4f9b593e4a6db53df8570db699688609336229d2220671b35e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A64D 6356 bytes
font_04_sfnt_off0002b846.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B846 6084 bytes
font_05_sfnt_off0002c7db.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C7DB 3752 bytes

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