Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea585e62347a370d…

MALICIOUS

PDF

187.2 KB Created: 2015-07-25 20:23:16 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e54fee2206ad23cfeb1ba2cdb88004a0 SHA-1: d495111b78d07faa3c03549266425d4e7e956840 SHA-256: ea585e62347a370dba530bd42f4db470e9510d3d6b27a6dc501841d0b9b7ed58
92 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 link to a known malicious redirector. The URL suggests a lure related to downloading Minecraft with mods, which is a common social engineering tactic. No scripts were extracted, 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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BC%D0%B0%D0%B9%D0%BD%D0%BA%D1%80%D0%B0%D1%84%D1%82+142+%D1%81+%D1%83%D1%81%D1%82%D0%B0%D0%BD%D0%BE%D0%B2%D0%BB%D0%B5%D0%BD%D0%BD%D1%8B%D0%BC%D0%B8+%D0%BC%D0%BE%D0%B4%D0%B0%D0%BC%D0%B8+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4196/4196964_servera_maynkraft_172_s_dyupom_i_1000_lvl.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188883_neat_video_skachat_besplatno_russkaya_versiya.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191605_prology_imap_555ag_proshivka.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024809.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24809 3556 bytes
font_01_sfnt_off0002558c.bin
93ac055ad8e4e2b2c0b312bfd2d0968cb3102368410207ee1a74f15767753be7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2558C 14756 bytes
font_02_sfnt_off000282cf.bin
0f543fb0f65d921ec795a6908ad7764f6521d269785bfe370ae4e7ff6635401e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x282CF 14468 bytes
font_03_sfnt_off0002ad82.bin
b23491b130abb1fdcc6c1002700db927342d5e4435c7f9d72673a1269468f1e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AD82 7360 bytes
font_04_sfnt_off0002c328.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C328 6084 bytes
font_05_sfnt_off0002d2bd.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D2BD 3752 bytes

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