Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc1e1f3f3287a62f…

MALICIOUS

PDF

186.7 KB Created: 2015-08-08 13:52:06 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: edcbf408ee16916bbade1ad58d5c646e SHA-1: 64ec31a6925f910e5178e6042fb934d0d90ef430 SHA-256: bc1e1f3f3287a62f97a1a16acfc1daa69bc882f6bf541907eacc80fa4a2faf40
90 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to botcraftman.ru. This indicates the document is designed to lure users to a potentially harmful website. No scripts were extracted, but the presence of the malicious URL is sufficient evidence for this assessment.

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=3+%D0%BD%D0%B4%D1%84%D0%BB+%D0%BE%D0%B1%D1%80%D0%B0%D0%B7%D0%B5%D1%86+%D0%B7%D0%B0%D0%BF%D0%BE%D0%BB%D0%BD%D0%B5%D0%BD%D0%B8%D1%8F+%D0%B4%D0%BB%D1%8F+%D0%B8%D0%BF+%D0%BD%D1%83%D0%BB%D0%B5%D0%B2%D0%B0%D1%8F&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4393/4393415_muse_the_2nd_law_skachat_albom.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384648_smotret_multik_pokoyo_na_russkom_yazuyke_vse_serii_podryad.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387636_skachat_operu_mini_7_na_telefon_samsung.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000246e8.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x246E8 3556 bytes
font_01_sfnt_off0002546b.bin
f2efd27a31d61310ae43d523b0b5a9ae5c136ad599a090943a608a94797d0b68		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2546B 14912 bytes
font_02_sfnt_off00028255.bin
a8e34466c77775282ff35936152e77d2d006e6251a28fa13b9eb6049a2645024		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28255 14468 bytes
font_03_sfnt_off0002ad00.bin
e0643549eab270a8d74976c2c142076f2090e29bae221b4cf37f1f9734476d25		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AD00 6860 bytes
font_04_sfnt_off0002c0cf.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C0CF 6084 bytes
font_05_sfnt_off0002d064.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D064 3752 bytes

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