Malicious PDF — malware analysis report

Static analysis result for SHA-256 988415bb09e906c0…

MALICIOUS

PDF

186.2 KB Created: 2015-07-27 19:24:59 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c534f95e68a70bd537f4c832f158554b SHA-1: 9995a178386f20d14fcceb352deaa5df5fc8796e SHA-256: 988415bb09e906c080999554f845265fd7c101b36546171cc0d48323c06d2efb
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to 'botcraftman.ru', which is identified as a malicious redirector. No scripts were extracted, but the presence of this malicious link suggests the document's purpose is to lure the user to a harmful site.

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%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D1%8B%D0%B5+%D0%BF%D0%B8%D0%BD+%D0%BA%D0%BE%D0%B4%D1%8B+%D0%B4%D0%BB%D1%8F+%D0%B2%D0%B0%D1%80%D1%84%D0%B5%D0%B9%D1%81+2015+%D0%B8%D1%8E%D0%BB%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4220/4220076_nebesa_unikalnaya_igra_moduy.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4226/4226605_sravnenie_organizacionnopravovuyh_form_tablica.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4227/4227340_instrukciya_na_lipers_3h9h40.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000242c1.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x242C1 3556 bytes
font_01_sfnt_off00025044.bin
3f44c3aea4cf43eaeedb8b25a9cd558d7c29ec156582174eabcf0200c7e7d7ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25044 14904 bytes
font_02_sfnt_off00027e58.bin
2a59007fdee31c4e7e96e1393d0674b90b7f4dd7d0f47d244d5252e7d650936f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E58 14640 bytes
font_03_sfnt_off0002a98d.bin
458484724466b767dbabe61edfe103fbc82a15a62a40f6a057f3e99d8dc069a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A98D 7428 bytes
font_04_sfnt_off0002bf32.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF32 6084 bytes
font_05_sfnt_off0002cec7.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CEC7 3752 bytes

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