Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc12d864b4205d47…

MALICIOUS

PDF

183.5 KB Created: 2015-08-05 17:08:29 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 0632a5d60195535297da442a690339f3 SHA-1: 0b48aec98de55ff61660dbb9a9fd309970cc9ba5 SHA-256: bc12d864b4205d47d296d090071654d01e1eeb16334ca8e3d0e3ee97d24e516a
90 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, http://botcraftman.ru/. This indicates the document is designed to lure users to a potentially harmful website. The ML classifier also flagged this PDF with high confidence. No scripts were extracted from this sample.

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=%D0%B4%D0%BE%D0%BC%D0%B0+%D0%B2+%D1%81%D0%B8%D0%BC%D1%81+3&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306100_tablica_mendeleeva_v_kartinkah_bolshaya.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304519_skachat_programmu_dlya_vzloma_akkaunta_v_samp.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306088_skachat_knigi_dlya_yelektronnoy_knigi_besplatno_v_formate_pdf.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023f39.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23F39 3556 bytes
font_01_sfnt_off00024cbc.bin
fa516d1838ebb6e7ddfa34a3d8cd7099d7c59f00b9be6aa56fadf1bc4a7a4bb7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24CBC 14148 bytes
font_02_sfnt_off00027912.bin
a8e34466c77775282ff35936152e77d2d006e6251a28fa13b9eb6049a2645024		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27912 14468 bytes
font_03_sfnt_off0002a3bd.bin
59133ad14523fc0b7b38a3fe245b69388402e64ea9549a8c17150d4ea47880e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A3BD 5976 bytes
font_04_sfnt_off0002b453.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B453 6084 bytes
font_05_sfnt_off0002c3e8.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C3E8 3752 bytes

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