Malicious PDF — malware analysis report

Static analysis result for SHA-256 f53b3ddd86f38008…

MALICIOUS

PDF

184.4 KB Created: 2015-08-05 16:40:37 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 0f85bfa5f07bc6b4d22aadfa4cfa8fc7 SHA-1: 36fccc5080e71ddf32a615fd3d0179d75f184514 SHA-256: f53b3ddd86f38008cd8123eb6cdce904e51825ee262fabc7ee299d9b4da85785
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector infrastructure, indicating an attempt to lure the user to a harmful site. The ML classifier also strongly flagged this PDF as malicious. The embedded URL is the primary indicator of malicious intent, likely serving as a lure for phishing or 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%BF%D0%B5%D1%81%D0%BD%D0%B8+%D0%B4%D0%BE%D0%BC%D0%B0+2&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305084_programma_dlya_sozdaniya_videorolikov_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305516_klyuch_aktivacii_kasperskiy_2013.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304949_skachat_detskie_klipuy_bebi_taym_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023db6.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23DB6 3556 bytes
font_01_sfnt_off00024b39.bin
e291dd013748bc7378d1e797d97170cd0aa84444e4d1c75cfe8d638f88845768		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24B39 14908 bytes
font_02_sfnt_off00027a0d.bin
1bdb34460530df544f3708516b9bff2a8899c1e4c5605cca86f0484fc167616c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27A0D 14468 bytes
font_03_sfnt_off0002a4bf.bin
8f8605e7671cda0834efd9ebd821cd0b9c4dcee72300220654474b2d8a682f09		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A4BF 6664 bytes
font_04_sfnt_off0002b7dc.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B7DC 6084 bytes
font_05_sfnt_off0002c771.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C771 3752 bytes

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