Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ce25e8eb5c55d93…

MALICIOUS

PDF

185.3 KB Created: 2015-07-25 02:49:45 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b942750e807fd7bf2a89917e7e3de2a3 SHA-1: 60a1c3e9269492306c9e3b7220c2451c251f3936 SHA-256: 7ce25e8eb5c55d935a213cd64ca9ff704035736ef74d6f63244ba7678fb274b7
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL http://botcraftman.ru/... is highly suspicious and likely leads to a malicious site, suggesting a phishing or malware delivery attempt.

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%A7%D0%B5%D1%80%D1%82%D0%B5%D0%B6+%D1%88%D0%BB%D0%B0%D0%BA%D0%BE%D0%B1%D0%BB%D0%BE%D1%87%D0%BD%D1%8B%D0%B9+%D1%81%D1%82%D0%B0%D0%BD%D0%BE%D0%BA&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186161_skachat_drayver_dlya_printera_hp_laserjet_cp1025_color.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192859_scenariy_den_medika.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4197/4197992_logopedicheskie_kartochki_dlya_razvitiya_rechi_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_off0002434c.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2434C 3556 bytes
font_01_sfnt_off000250cf.bin
57774682c79b25afaa645d5750066d4f4434e8a66c6101ab61aec478e6497c31		 pdf-font-stream PDF embedded font (sfnt) at offset 0x250CF 14304 bytes
font_02_sfnt_off00027d06.bin
b321a72518e91764f794c032567910fb1d8a0155e8093259656bf98a7dea970b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D06 14636 bytes
font_03_sfnt_off0002a837.bin
cf38ab625d70ad1f9867208dd53cf29c0d9db7aa20a8aacae33898cb568e8519		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A837 6728 bytes
font_04_sfnt_off0002bb79.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB79 6084 bytes
font_05_sfnt_off0002cb0e.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB0E 3752 bytes

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