Malicious PDF — malware analysis report

Static analysis result for SHA-256 92c575af7d67fd7b…

MALICIOUS

PDF

188.0 KB Created: 2015-07-27 16:53:27 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6) First seen: 2021-05-29
MD5: f48879574c57f3838eaaaee7f6856a25 SHA-1: 80c82f559eb8d6642c753b5793c4cd645cd44955 SHA-256: 92c575af7d67fd7b70ee4a96ca86ec1b0ad4768d95da14fb8e3ce426d8b6c0e0
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector infrastructure. This suggests the document is designed to lure users to a malicious website, likely for phishing or malware delivery. No scripts were extracted, but the presence of a malicious URL is a strong indicator 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=%D0%BE%D0%B1%D1%80%D0%B0%D0%B7%D0%B5%D1%86+%D0%BE%D1%82%D0%B7%D1%8B%D0%B2%D0%B0+%D0%BD%D0%B0+%D0%B8%D1%81%D0%BA%D0%BE%D0%B2%D0%BE%D0%B5+%D0%B7%D0%B0%D1%8F%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D0%B5+%D0%B2+%D0%B0%D1%80%D0%B1%D0%B8%D1%82%D1%80%D0%B0%D0%B6%D0%BD%D1%8B%D0%B9+%D1%81%D1%83%D0%B4&charset=utf-8 In PDF document text
    • http://fastpic.ru/In PDF document text
    • http://www.liveinternet.ru/clickIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/5//4218/4218912_uchastok_serial_skachat_torrent.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190833_rezultatuy_egye_po_russkomu_yazuyku_2015_bryanskaya_oblast.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/5//4205/4205487_stalker_ten_chernobuylya_mod_povelitel_zonuy_skachat_torrent.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_off00024b3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24B3F 3556 bytes
SHA-256: 880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
font_01_sfnt_off000258c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x258C2 14460 bytes
SHA-256: 09201be9d3b7c13b6d146eec7ed3463696f012ea1d7d2103eba825e653ad767e
font_02_sfnt_off00028640.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28640 14468 bytes
SHA-256: b79d56b22a3d37edc4793e81e28af2d51416733c1decb699be69ae0b1e9dff38
font_03_sfnt_off0002b0ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B0EF 7280 bytes
SHA-256: fa95c3b02ec88d36c3b9afc58121f217cddefe18faacd572aff24c448eb38d60
font_04_sfnt_off0002c618.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C618 6084 bytes
SHA-256: 819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
font_05_sfnt_off0002d5ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D5AD 3752 bytes
SHA-256: 9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e

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