Malicious PDF — malware analysis report

Static analysis result for SHA-256 93f006b16693b207…

MALICIOUS

PDF

362.0 KB Created: 2015-08-21 09:32:30 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: db70c9aeafbecf3bc390a20a2b380f45 SHA-1: 4bf8838affd4c7d944adbf0d47d7b0fcee2da6d0 SHA-256: 93f006b16693b20770b3234a38158b0a1d0aae9ac9e72865a284f440c5fa22be
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector, which is designed to lead users to harmful websites. The embedded URL is associated with a lure for downloading a game mod, suggesting a social engineering tactic to trick users into clicking the malicious link. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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=gta+san+andreas+vip+mod+v3+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654921_devushki_i_sobaki_porno_onlayn.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654686_wifi_password_hack_v5_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654732_skachat_whatsapp_na_sony_ericsson_u5i_vivaz.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000558d4.bin
626387cc3b412738c32dd504414f76a89d88486d27b9759f39e133f544c79588		 pdf-font-stream PDF embedded font (sfnt) at offset 0x558D4 10112 bytes
font_01_sfnt_off000574ab.bin
af6af009ccb2427e547c38b73271142734c5f964647eefee75f9a88e86d64b07		 pdf-font-stream PDF embedded font (sfnt) at offset 0x574AB 17284 bytes

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