Malicious PDF — malware analysis report

Static analysis result for SHA-256 58eccb2845833baa…

MALICIOUS

PDF

194.0 KB Created: 2015-07-24 04:09:42 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: f56364b8f1044cb7f74f681b9815f0fb SHA-1: 87950356370f40a7ff12b5b4c989040fa9eed4c9 SHA-256: 58eccb2845833baaaae5ffbaef3a0047919f72f145069a710d30cfb1f826795c
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. A critical heuristic identified a link to known malicious redirector infrastructure at http://botcraftman.ru/. This indicates the document is likely a lure to redirect users to a malicious site, potentially for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7432049-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7432049-0
  • 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%91%D0%BB%D0%B0%D0%BD%D0%BA+%D0%B4%D0%BE%D0%B3%D0%BE%D0%B2%D0%BE%D1%80+%D0%BA%D1%83%D0%BF%D0%BB%D0%B8-%D0%BF%D1%80%D0%BE%D0%B4%D0%B0%D0%B6%D0%B8+%D0%B0%D0%B2%D1%82%D0%BE%D0%BC%D0%BE%D1%82%D0%BE%D1%82%D1%80%D0%B0%D0%BD%D1%81%D0%BF%D0%BE%D1%80%D1%82%D0%B0+%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://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184995_nasha_sila_zaryadnoe_ustroystvo_ns_101_instrukciya.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184977_koduy_probnikov_orifleym_2015.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187008_skachat_miracast_dlya_windows_7.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00026543.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x26543 3556 bytes
font_01_sfnt_off000272c6.bin
87899269291a26d23c59e31fec366e985edccf2a551a56e5f0f6c584c1a3d886
pdf-font-stream PDF embedded font (sfnt) at offset 0x272C6 14196 bytes
font_02_sfnt_off00029ea6.bin
64eb11199a574734c6a77eaeb1a80c7c2d9929a7d16b3f0987303acd5d3d13bc
pdf-font-stream PDF embedded font (sfnt) at offset 0x29EA6 14468 bytes
font_03_sfnt_off0002c959.bin
69e6d1c672e0f12e65e2ee9be76b0d11e0eca611ffaa224b2836d23d7e965c37
pdf-font-stream PDF embedded font (sfnt) at offset 0x2C959 7132 bytes
font_04_sfnt_off0002de18.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2DE18 6084 bytes
font_05_sfnt_off0002edad.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2EDAD 3752 bytes