Malicious PDF — malware analysis report

Static analysis result for SHA-256 5eeb60cdeea475f5…

MALICIOUS

PDF

188.1 KB Created: 2015-08-08 16:04:54 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: eb81220eb4e09a2be44b9d3ab09c2506 SHA-1: af74b5737800b16cecf6d2f8a4faccd17b47a5f7 SHA-256: 5eeb60cdeea475f52c566715ae98c3852a3e2ab77b7ba66f0f038266b6edfb4a
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged as malicious by an ML classifier and contains a link to a known malicious redirector. The embedded URL is likely part of a phishing or malware distribution chain. No scripts were extracted, but the presence of a malicious link is sufficient evidence for this assessment.

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%9A%D0%BE%D1%80%D0%BE%D0%B1%D0%BA%D0%B0+%D0%BF%D0%B5%D1%80%D0%B5%D0%B4%D0%B0%D1%87+%D0%BC%D0%B0%D0%B7+%D1%81+%D0%B4%D0%B5%D0%BB%D0%B8%D1%82%D0%B5%D0%BB%D0%B5%D0%BC+%D1%81%D1%85%D0%B5%D0%BC%D0%B0+%D0%BF%D0%B5%D1%80%D0%B5%D0%BA%D0%BB%D1%8E%D1%87%D0%B5%D0%BD%D0%B8%D1%8F&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385976_prodat_iphone_5_na_zapchasti.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387218_skachat_mod_na_stalker_zov_pripyati_sigerous_mod_23.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4396/4396164_gruppa_park_gorkogo_skachat_besplatno.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024c9e.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24C9E 3556 bytes
font_01_sfnt_off00025a21.bin
dc5af6321aae11bb54997947356917c84cd209e127df5c6e66859bd7a8d99556		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25A21 14456 bytes
font_02_sfnt_off0002872a.bin
7904a7018a07d16e94f8de716e4b1cfbf38785f5da815b6ed080f53b26469285		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2872A 14532 bytes
font_03_sfnt_off0002b218.bin
c27b59e6cc89287da8b8b28bbafb027b5f846024e833bb0e0dcbe43641d1e02b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B218 7088 bytes
font_04_sfnt_off0002c69f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C69F 6084 bytes
font_05_sfnt_off0002d634.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D634 3752 bytes

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