Malicious PDF — malware analysis report

Static analysis result for SHA-256 a684f7c77431ff31…

MALICIOUS

PDF

185.1 KB Created: 2015-07-28 15:07:14 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b8d78984ccec365648ea169cc08a9f47 SHA-1: f6bb97c48b17fa3fd43711e9f18cc39f3917106e SHA-256: a684f7c77431ff3119bd16210da2248abeee4fb6a0695b79fd29ea6f68a86353
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The primary malicious URL identified is http://botcraftman.ru/. This suggests the document's purpose is to lure the user to this external site, likely for phishing or malware delivery. No scripts were extracted, and the document body was not sufficiently readable to provide further context.

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=dj+vkontakte+%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//4208/4208328_payday_2_skachat_torrent_repack_mehaniki_rus.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4233/4233900_vin_kod_proverka_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4228/4228292_zritelnuye_obrazuy_dlya_proigruyvatelya_windows_media.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023e55.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23E55 3556 bytes
font_01_sfnt_off00024bd8.bin
1664b4b7b67634fb0ced49059a84cb9e6dc25aa8ae31259b59d486499ed2f44c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24BD8 15244 bytes
font_02_sfnt_off00027abc.bin
4a552c9064e6afbaba21aa1d0aedc2e6bef814b4873c39752afad07a5128756d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27ABC 14856 bytes
font_03_sfnt_off0002a6c0.bin
900e440398d6a6e26a514995d8461e8a16f30d26bcd41534b4bba0e057cc6062		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A6C0 6872 bytes
font_04_sfnt_off0002ba94.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA94 6084 bytes
font_05_sfnt_off0002ca29.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA29 3752 bytes

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