Malicious PDF — malware analysis report

Static analysis result for SHA-256 45598d87a111e449…

MALICIOUS

PDF

185.3 KB Created: 2015-07-26 18:34:44 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: d6a15ceb900a97c8f7621429ca6561df SHA-1: 7defafcd3ec5a6dc6a2c92b33beab2f3e4d07359 SHA-256: 45598d87a111e44975ad64d9bcb2b8405ec3b761f17da8cde57cc201773be64b
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, is likely part of a phishing campaign or a distribution point for further malware. The ML classifier also strongly indicated maliciousness. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific lure.

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=Novation+launchpad+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B4%D0%BB%D1%8F+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4212/4212064_yemulyator_ps2_na_android.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187712_asus_x54c_drayvera_setevoy_kontroller.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4193/4193019_dir_320_a2_proshivka.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023ec2.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23EC2 3556 bytes
font_01_sfnt_off00024c45.bin
f5ef168319e7984e7e26aee068aa39759fe2c10bf0130776723f23785f2645d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24C45 14924 bytes
font_02_sfnt_off00027a47.bin
9d6acd90d87d13e822334d824b56b15b6be8d228b3b1487a285f13e52519b1bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27A47 14784 bytes
font_03_sfnt_off0002a5d4.bin
46c6f56d8667d7e40672349a57ccf1d130901782b1f094aa36561d0c97f6af67		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A5D4 7388 bytes
font_04_sfnt_off0002bb81.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB81 6084 bytes
font_05_sfnt_off0002cb16.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB16 3752 bytes

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