Malicious PDF — malware analysis report

Static analysis result for SHA-256 02c11547908467dd…

MALICIOUS

PDF

187.1 KB Created: 2015-07-24 10:44:35 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e23c218ab13782eacc5a23305eaa1d59 SHA-1: c451ba64cf263acbd23db9bbbb533874b8cd8393 SHA-256: 02c11547908467dd6c1cf40fc493d310ce749f1ae9e7ea4acd15d9a829b3312f
92 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 ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of a malicious URL is sufficient evidence of a malicious intent, likely for malware delivery.

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%B4%D1%80%D0%B0%D0%B9%D0%B2%D0%B5%D1%80+%D0%BD%D0%B0+%D0%BF%D1%80%D0%B8%D0%BD%D1%82%D0%B5%D1%80+canon+lbp+2900&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190864_programma_dlya_raskladki_laminata.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188058_skachat_whatsapp_dlya_samsung_bada_gt_s5250.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184429_silverfast_ai_studio_8_skachat_torrent.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_off0002445d.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2445D 3556 bytes
font_01_sfnt_off000251e0.bin
f52bba6bcc94d62e5ce1bc4b84732aac0efca4357ca5f1fd285b845c5ada94b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x251E0 15204 bytes
font_02_sfnt_off000280c6.bin
81423b937e800c9a5be3f8cc7381044a21c4547831fe63b0ceac6afc95ece2cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x280C6 14596 bytes
font_03_sfnt_off0002abdd.bin
fe12ebf5afa1bd9a48bc14cd8aa188097ed4e28b95a1932af2becdb8d2a7fdb1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ABDD 7772 bytes
font_04_sfnt_off0002c2c9.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C2C9 6084 bytes
font_05_sfnt_off0002d25e.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D25E 3752 bytes

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