Malicious PDF — malware analysis report

Static analysis result for SHA-256 97ca4a3b31d69c05…

MALICIOUS

PDF

185.2 KB Created: 2015-08-08 16:00:01 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 950771422169e9ef9b38acd89fd55efa SHA-1: 3df9b169c1de5cf31bf157978584fa99a161a479 SHA-256: 97ca4a3b31d69c05ce1c5e8d1c721c021431b3ed43321f9f452fc94249956e21
60 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 site. No scripts were extracted, but the presence of the malicious URL strongly suggests a phishing or malware delivery attempt. The PDF was generated by wkhtmltopdf, which is sometimes used to package malicious content.

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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%B5%D0%BA%D1%81%D1%82%D1%83%D1%80%D1%8B+%D0%BD%D0%B0+%D0%BC%D0%B0%D0%B9%D0%BD%D0%BA%D1%80%D0%B0%D1%84%D1%82+1710&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385151_skachat_besplatno_divov_kak_ya_buyl_yekstrasensom.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4397/4397118_mia_paper_planes_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4396/4396216_zvuk_fotokameruy_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000241df.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x241DF 3556 bytes
font_01_sfnt_off00024f62.bin
3770de58ed73cad5fe055a78e0e95a46c9f90c730fd0ede8574c15d93db07488		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F62 14568 bytes
font_02_sfnt_off00027c5e.bin
0e0375f9d8dfa2cc84103e706496675ff7a42fb0a0194de4e117b5836b3d7ce2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C5E 14512 bytes
font_03_sfnt_off0002a741.bin
a25c5aeb90c267272a821c2e44c45bbb6c38106344e014c05edc019d9d1ad76a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A741 6812 bytes
font_04_sfnt_off0002baf8.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BAF8 6084 bytes
font_05_sfnt_off0002ca8d.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA8D 3752 bytes

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