Malicious PDF — malware analysis report

Static analysis result for SHA-256 d778788f03099372…

MALICIOUS

PDF

367.9 KB Created: 2015-08-19 14:14:04 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: fddea1496842981810e3a207ed0a2a37 SHA-1: fed08b715a7d4410e1475e7a23117bf49a4ea68a SHA-256: d778788f030993725c71b9428bd01b6944cc5cbc0e40c7ef2914a5a37d9fef7a
90 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that is flagged as a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated and unreadable, suggesting it is not intended for human consumption but rather to facilitate the redirection to the malicious domain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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%9B%D0%B8%D1%86%D0%B5%D0%BD%D0%B7%D0%B8%D0%BE%D0%BD%D0%BD%D1%8B%D0%B9+%D0%BA%D0%BB%D1%8E%D1%87+%D0%BA+%D0%BD%D0%B0%D0%B2%D0%B8%D1%82%D0%B5%D0%BB+%D0%B4%D0%BB%D1%8F+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626506_otkruyt_vse_avtosalonuy_v_euro_truck_simulator_2_mod.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4496/4496744_otvetuy_na_biletuy_stropalschika_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626615_prikaz_o_prisvoenii_kleyma_svarschiku.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000575cd.bin
cdb8ef1d90dce6c8d1069715f8ea3bcdc492eaaee4c5887ecda537ae5d72133c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x575CD 8532 bytes
font_01_sfnt_off00058e62.bin
71b143c419187c1010bc83d8d120c9a26adf218e0a8c805aacc2a4e88059de1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58E62 16096 bytes

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