Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddb9b2d5b54dea4e…

MALICIOUS

PDF

185.7 KB Created: 2015-08-05 21:42:31 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a1348ada29c44ca9f8f806e95fe471b1 SHA-1: 5afbc1c42ece5b146286d9a6463238ed5ce3e2f4 SHA-256: ddb9b2d5b54dea4e563c5bd1a63a1ed569c7dbb662a1d2b84457b7371723e043
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware download page. No scripts were extracted, and the document body was truncated and unreadable.

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%B4%D0%B5%D0%BC%D0%BE%D0%B2%D0%B5%D1%80%D1%81%D0%B8%D0%B8+%D0%B5%D0%B3%D1%8D+2015+%D0%BF%D0%BE+%D0%BC%D0%B0%D1%82%D0%B5%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4307/4307953_kak_postavit_melodiyu_na_kontakt_v_android_42.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306854_skachat_igru_sakred_2_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4307/4307768_oshibki_v_gazetah_primeruy.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002431c.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2431C 3556 bytes
font_01_sfnt_off0002509f.bin
ea6b71787fc8e2617eda747b9f3d220761f213221a265f9586d7ff1cac15b8ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2509F 14552 bytes
font_02_sfnt_off00027e39.bin
d129b2306b70ce91da7e21aa5dc95ff0e57120c5b3b157257a57119c7bcd55f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E39 14640 bytes
font_03_sfnt_off0002a972.bin
5ae256d91f044af96f73c26b14669fc471522145ec6e150bdff5da174034034b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A972 6724 bytes
font_04_sfnt_off0002bcd5.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BCD5 6084 bytes
font_05_sfnt_off0002cc6a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC6A 3752 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.