Malicious PDF — malware analysis report

Static analysis result for SHA-256 11d93a7ee3d2c6c0…

MALICIOUS

PDF

187.1 KB Created: 2015-07-26 12:11:12 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6) First seen: 2021-09-15
MD5: 76b05592a17c331bf7a58f82e68f620b SHA-1: dea611ba2c63b97e299a7f03265c03d858763783 SHA-256: 11d93a7ee3d2c6c021bb9b99df5aebafa80ffcc5ca6349c769e0caaf3c73b5b2
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a malicious redirector link pointing to botcraftman.ru. This URL is likely used to host phishing content or distribute malware. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is sufficient evidence of malicious intent.

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=Shareit+%D0%B4%D0%BB%D1%8F+%D0%BA%D0%BE%D0%BC%D0%BF%D1%8C%D1%8E%D1%82%D0%B5%D1%80%D0%B0+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC+%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&charset=utf-8 In PDF document text
    • http://fastpic.ru/In PDF document text
    • http://www.liveinternet.ru/clickIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191416_skachat_drayver_dlya_printera_epson_stylus_photo_r220.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186132_astrologiya_obolscheniya_vasilisa_volodina_skachat_besplatno.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/5//4212/4212996_zayavka_v_centr_zanyatosti_ot_rabotodatelya_obrazec.pdfIn PDF document text
    • http://www.microsoft.com/typography/fonts/In PDF document text
    • http://www.microsoft.com/typography/fonts/YouIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024689.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24689 3556 bytes
SHA-256: 880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
font_01_sfnt_off0002540c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2540C 14404 bytes
SHA-256: 4227ca4e9bb7e1afae9ebdf5cdbb8ce7f6859658351fec65c845ce2ba16db000
font_02_sfnt_off000280bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x280BD 14892 bytes
SHA-256: b04740706031a6d99f3b7154684151b31fc8fc9cb9aa24fd87b8bf64d0584a49
font_03_sfnt_off0002ac99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AC99 7544 bytes
SHA-256: ca878591c41ce9676062d0ffe8081bfbf04193c34dbbf6d329ce2028df0c0bb0
font_04_sfnt_off0002c2c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C2C0 6084 bytes
SHA-256: 819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
font_05_sfnt_off0002d255.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D255 3752 bytes
SHA-256: 9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e

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