Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e4a2963a7c15fb5…

MALICIOUS

PDF

186.2 KB Created: 2015-07-26 03:56:55 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c7510bbdc1abc76a06f92af51b5394ac SHA-1: 4b90b9e56272ee0f3bc38c9909bedf456e9de6ac SHA-256: 9e4a2963a7c15fb57af7cc4f19e9f8bd89bfd45ae3adee297a4cc22243b5e61c
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 infrastructure. The ML classifier also flagged this PDF with high confidence. The embedded URL is likely intended to lure the user into downloading further malicious content or to phish for credentials.

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=windows+10+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%B0%D1%8F+%D0%B2%D0%B5%D1%80%D1%81%D0%B8%D1%8F&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185050_naruto_shippuuden_ultimate_ninja_storm_2_pc_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192865_den_braun_inferno_skachat_besplatno_na_russkom_yazuyke.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4201/4201143_skachat_gotovuyy_server_advance_rp.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a9cb.bin
83ee64d4ce823076d810667eb4c3f6bfce5f9c3789b53d5bb0b266bfe4f1b92a		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A9CB 7216 bytes
font_00_sfnt_off00024393.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24393 3556 bytes
font_01_sfnt_off00025116.bin
8c9bb4f6fb067eb7c8c1ee88c75a90daae2cf1f1f334c530b52ebde1384e4ad6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25116 14776 bytes
font_02_sfnt_off00027ed9.bin
2a20b7b5c88063ad55a24dede3fed7195ce23ba569071c49e6ec2b6f299a4415		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27ED9 14536 bytes
font_04_sfnt_off0002bedd.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BEDD 6084 bytes
font_05_sfnt_off0002ce72.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE72 3752 bytes

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