Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a1b90931fe95adf…

MALICIOUS

PDF

185.0 KB Created: 2015-08-05 22:39:44 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6) First seen: 2021-06-13
MD5: bbe53669c83e451a3153e149af6274bd SHA-1: 617cdc4544b5b98d78c130c96e67810fab2340e9 SHA-256: 7a1b90931fe95adfe529d2794d9b6c71e86ba95b0cd41a57f21679a56bfd0faa
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, botcraftman.ru, which is flagged by critical heuristics. This indicates an attempt to lure the user to a malicious site, likely for phishing or to download further malware. No scripts were extracted, but the presence of the 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=playerxml+%D0%B4%D0%BB%D1%8F+citadels+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&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/6//4306/4306568_skachat_torrent_prometey.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4307/4307111_skachat_csr_racing_na_android_s_beskonechnuymi_dengami.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304878_skachat_clientstxt_dlya_css_v34.pdfIn PDF document text
    • http://www.microsoft.com/typography/fonts/YouIn PDF document text
    • http://www.microsoft.com/typography/fonts/In PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a539.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A539 7188 bytes
SHA-256: dde22c870dc1503a5b9969197cad06cc6d792555859f3659c8c67855647429a1
font_00_sfnt_off00023d8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23D8B 3556 bytes
SHA-256: 880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
font_01_sfnt_off00024b0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24B0E 15152 bytes
SHA-256: 873529b06a3107c96ea574d74b11be21bc3454cd9449f9022f4806909d3ad901
font_02_sfnt_off0002795f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2795F 14952 bytes
SHA-256: 8e3d8c93151a2d5d4b095880b1171525e11bd5f46520d1b38d9df89f12daa1f0
font_04_sfnt_off0002ba51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA51 6084 bytes
SHA-256: 819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
font_05_sfnt_off0002c9e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C9E6 3752 bytes
SHA-256: 9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e

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