Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0292302a931fcc5…

MALICIOUS

PDF

360.6 KB Created: 2015-08-26 10:13:32 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 30500ca992ee82e1f64fbd1c8adc4226 SHA-1: 295a1ab8afe33569e417532e2636940eab46ac58 SHA-256: f0292302a931fcc534100d2e690e09873094488aa494edfd5008ef647763332d
90 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The ML classifier also strongly flagged this PDF as malicious. The primary IOC is the malicious URL, which is likely used to deliver a secondary payload or redirect to a phishing site. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D0%B4%D0%BB%D1%8F+%D1%81%D0%BE%D1%81%D1%82%D0%B0%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D1%8F+%D0%B1%D0%B8%D0%B7%D0%BD%D0%B5%D1%81+%D0%BF%D0%BB%D0%B0%D0%BD%D0%B0+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4752/4752422_motionjoy__dualshock__3_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751905_bike__park__game_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4752/4752437_itogovaya__kontrolnaya__po_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000557ef.bin
9f0d8c20ad58a679d91fc3b7f1357bbb592d1d20319cb2119d9130dee1b86f5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x557EF 9188 bytes
font_01_sfnt_off000571a4.bin
8926e9d90b31a66452933f1db13789859b4be776e67f190935340da77041be19		 pdf-font-stream PDF embedded font (sfnt) at offset 0x571A4 16732 bytes

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