Malicious PDF — malware analysis report

Static analysis result for SHA-256 0da54f8bfe26ff26…

MALICIOUS

PDF

184.8 KB Created: 2015-07-25 11:28:46 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 72b85ccd0e85b500036a3b96dff414d1 SHA-1: 9d23983b18a1113d0763f89743fec749a5f694d2 SHA-256: 0da54f8bfe26ff269cccb54665cd39bf328acceff04b7f08d85a8bd09b35c0f8
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating a link to a known malicious redirector. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the presence of a malicious URL suggests an attempt to redirect the user to a phishing or malware distribution site. The document body is truncated and does not provide further context.

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%BF%D0%B4%D0%B4+%D0%B4%D0%BB%D1%8F+%D1%8D%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BD%D0%BD%D0%BE%D0%B9+%D0%BA%D0%BD%D0%B8%D0%B3%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187216_dnevnik_domovogo_skachat_vse_chasti.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192801_skachat_bitvu_yekstrasensov_11_sezon_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4204/4204026_microsoft_setup_bootstrapper_ne_rabotaet.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024111.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24111 3556 bytes
font_01_sfnt_off00024e94.bin
8b10c2f1b293fec8449951d37e493514c74e795986b6ca12af866d4a6370aa60		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E94 15016 bytes
font_02_sfnt_off00027cf6.bin
1a803d94510109e1c0ca4497b007617bc54bc3871f99963dd6d053fab28c84d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27CF6 14468 bytes
font_03_sfnt_off0002a7aa.bin
1b1958e2d4c7235e2532d395a612658e2e0151c5816d297b4ec8f77cef798a29		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A7AA 6272 bytes
font_04_sfnt_off0002b948.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B948 6084 bytes
font_05_sfnt_off0002c8dd.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C8DD 3752 bytes

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