Malicious PDF — malware analysis report

Static analysis result for SHA-256 5083c32ebba83605…

MALICIOUS

PDF

185.7 KB Created: 2015-07-24 11:41:47 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 97760e02794590a5c7a1170af62be9d1 SHA-1: 05995f8bd0e4efa2d344d53caa7b1e40810802af SHA-256: 5083c32ebba83605928cde2f97747e63c62cd54d0b50bc88f1b8e6a4e0357868
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, http://botcraftman.ru/, which is a strong indicator of malicious intent. The ML classifier also flagged this PDF with high confidence. The document body appears to be malformed or truncated, preventing a more detailed analysis of its content. 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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+gta+5+%D0%BD%D0%B0+xbox+360+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192036_igra_prestolov_chitat_onlayn_vse_knigi.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186332_prodazha_informacii_v_internete_ot_a_do_ya_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189300_skachat_adobe_audition_15_russkaya_versiya.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024061.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24061 3556 bytes
font_01_sfnt_off00024de4.bin
666eb22fce4568f32c2d6573a4cb205e34baa42d102fdbfa722caca62a40c9d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24DE4 14764 bytes
font_02_sfnt_off00027b53.bin
5ca86645c28349dc9387bde92912c0f31a0be615c6fafd0d7550e4b11b863d65		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27B53 14952 bytes
font_03_sfnt_off0002a784.bin
1af79e40109e6333a2f08442a710e094ca4bd6abfcc8e028364e665e90651b31		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A784 7344 bytes
font_04_sfnt_off0002bd0a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD0A 6084 bytes
font_05_sfnt_off0002cc9f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC9F 3752 bytes

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