Malicious PDF — malware analysis report

Static analysis result for SHA-256 08f9172649ded03a…

MALICIOUS

PDF

185.4 KB Created: 2015-07-23 20:53:09 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 636243256a37d7dc72e866c02991292e SHA-1: 2115f95e97fa32797ed753273d143d7d50b2af75 SHA-256: 08f9172649ded03a1743b3e9940a10448f96926bb2fa5929ea497a6883eaf56b
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lead the user to a harmful site. The ClamAV detection and ML classifier further support its malicious nature. While no scripts were explicitly extracted, the PDF structure and embedded URL suggest it's designed to exploit users by directing them to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7493041-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7493041-0
  • 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+147+%D1%81+%D0%BC%D0%BE%D0%B4%D0%BE%D0%BC+%D0%B4%D0%B8%D0%B2%D0%B0%D0%B9%D0%BD+%D1%80%D0%BF%D0%B3&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184631_rus02192012nm3_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184434_reshenie_zadach_s5_po_himii.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184457_spravka_o_srednem_zarabotke_dlya_centra_zanyatosti_blank_skachat.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_off000241ca.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x241CA 3556 bytes
font_01_sfnt_off00024f4d.bin
4ac9887ec58b543d1e449eeaf1f4cc1f7f1f0c8f4facdf71c90456774d7814cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F4D 14604 bytes
font_02_sfnt_off00027cf7.bin
87ed20edeb7ba91c87cbdc946742b248ea1da6daa7e0378340a71ea450de8c70		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27CF7 14512 bytes
font_03_sfnt_off0002a7dc.bin
6ad9bffa0d19e78e815c45531a80a64027f98e289b373b1e219b8a2aa780cb38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A7DC 6936 bytes
font_04_sfnt_off0002bbfe.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BBFE 6084 bytes
font_05_sfnt_off0002cb93.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB93 3752 bytes

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