Malicious PDF — malware analysis report

Static analysis result for SHA-256 feea76505e236baa…

MALICIOUS

PDF

184.2 KB Created: 2015-07-26 00:19:37 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 0fd474e958b3c01e2a67d447d8a61134 SHA-1: d1138b5ec1c10e1624df6c747980eeadb8517522 SHA-256: feea76505e236baa07d7f0a9a11fa9d88c8ad3294c6a7fc3c3e7d7ba22494c4c
90 Risk Score

Malware Insights

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

The PDF file contains an embedded link that points to a known malicious redirector. The ML classifier also flagged this PDF with high confidence. The primary attack vector appears to be luring the user to click the malicious link, which is likely intended to download further malware or lead to a phishing page.

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%B0%D0%BA%D1%82+%D0%B4%D0%B5%D0%BC%D0%BE%D0%BD%D1%82%D0%B0%D0%B6%D0%B0+%D0%BE%D0%B1%D1%80%D0%B0%D0%B7%D0%B5%D1%86&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4195/4195058_skachat_film_zheleznuyy_chelovek_3_na_android.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4198/4198571_velikolepnuyy_vek_kniga_skachat_besplatno_na_russkom_yazuyke.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192312_diktantuy_dlya_3_klassa_shkola_rossii.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023f3d.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23F3D 3556 bytes
font_01_sfnt_off00024cc0.bin
a818b1424e89d8344c094c041d150447953fbd44af9c62cb0df1dd9d364a26f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24CC0 14260 bytes
font_02_sfnt_off000279a0.bin
b79d56b22a3d37edc4793e81e28af2d51416733c1decb699be69ae0b1e9dff38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x279A0 14468 bytes
font_03_sfnt_off0002a44f.bin
cc8952801ba256038ed5e2ec04cff1d418b50e2f6ce87679433ac069b9043d3f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A44F 6584 bytes
font_04_sfnt_off0002b712.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B712 6084 bytes
font_05_sfnt_off0002c6a7.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C6A7 3752 bytes

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