Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdc666fad3413e89…

MALICIOUS

PDF

184.2 KB Created: 2015-07-25 05:27:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2dce36c0086c431bfbf70ea0744f0903 SHA-1: 75dddd4770f331289cbd4a5e6e6cd78064653a0e SHA-256: cdc666fad3413e89a6528894948b386474fca1838ce1901708b75fc0278d3a47
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 link to a known malicious redirector. The redirector URL is likely used to funnel users to a malicious website for phishing or malware delivery. No scripts were extracted, and the document body was not parsable.

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=live+cd+windows+xp+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%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//4184/4184903_kristall_tv_kod_aktivacii.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184368_plagin_dlya_androida_dlya_prosmotra_video.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185798_kod_na_antivirus_kasperskogo_2015.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a263.bin
fd0d4b27b2778cd0ab3f32692bb412270edaad0b542617203671cc65cba2c4cc		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A263 7072 bytes
font_00_sfnt_off00023be6.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23BE6 3556 bytes
font_01_sfnt_off00024969.bin
618de3840642fc5421d1cb32757cb378b73613b419dd79af2a5fc8f5a94fa0b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24969 14580 bytes
font_02_sfnt_off0002770e.bin
63040607dcf92a01469c1cf352fb7c8c926e848636355409b7ef2f325bc0734e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2770E 14652 bytes
font_04_sfnt_off0002b6db.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B6DB 6084 bytes
font_05_sfnt_off0002c670.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C670 3752 bytes

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