Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dea793e7de68aaa…

MALICIOUS

PDF

184.7 KB Created: 2015-08-08 11:30:04 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 10a33d2741b201a446f89b43d35d5872 SHA-1: 760a8be261d0079f6a8e2f4922c916bb9638e0f2 SHA-256: 5dea793e7de68aaaf333a8fd305d768849ae5915b9e54a192220cd8a199641a5
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. This suggests the document is designed to lure users to a malicious website, likely for phishing or malware distribution. No scripts were extracted, and the document body was truncated, limiting further analysis of the exact payload.

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=fs-t6+%D0%B8%D0%BD%D1%81%D1%82%D1%80%D1%83%D0%BA%D1%86%D0%B8%D1%8F+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387013_luchshie_hituy_radio_vostok_fm_2013_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386711_beret_letniy_kryuchkom_shema.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387525_film_zerkala_skachat_na_telefon.pdf
    • http://www.microsoft.com/typography/fonts/You
    • http://www.microsoft.com/typography/fonts/

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a5e9.bin
ce301d85e43182bcbdfbde5a414b8c7f8f0e46999299bf29e137c3648725dc20		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A5E9 6592 bytes
font_00_sfnt_off00023f6d.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23F6D 3556 bytes
font_01_sfnt_off00024cf0.bin
b4e4ee889356834d4e830b20890dbdd21d930ca3f6fd776f751d198d15d06e4d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24CF0 14552 bytes
font_02_sfnt_off00027aa0.bin
177cc1d5b9d5e7668ee74ce45d2a65afb5e44c416a3b731787952a07298cbe87		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27AA0 14628 bytes
font_04_sfnt_off0002b8e6.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B8E6 6084 bytes
font_05_sfnt_off0002c87b.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C87B 3752 bytes

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