Malicious PDF — malware analysis report

Static analysis result for SHA-256 1219ac9b918c2dab…

MALICIOUS

PDF

188.1 KB Created: 2015-07-28 18:49:02 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: fcb659f0d7580662ce2e9173238f3576 SHA-1: 51ca496ff8eadb340dc921ffdd1fed29547e415f SHA-256: 1219ac9b918c2dab7580ca03434cb47d5d537f2d86f23863923d1da5aa5777c3
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, botcraftman.ru, which is a strong indicator of malicious intent. The ML classifier also flagged this PDF with high confidence. While no scripts were explicitly extracted, the presence of embedded URLs and the heuristic firings suggest the document is designed to lure users to a malicious site, likely for phishing or to download further malware.

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+%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D1%83+1%D1%81+%D0%B1%D1%83%D1%85%D0%B3%D0%B0%D0%BB%D1%82%D0%B5%D1%80%D0%B8%D1%8F+82+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%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://img1.liveinternet.ru/images/attach/c/5//4195/4195058_skachat_film_zheleznuyy_chelovek_3_na_android.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4202/4202377_monopoliya_3d_skachat_besplatno_na_russkom_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4221/4221010_itogovaya_kontrolnaya_po_biologii_8_klass.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024b31.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24B31 3556 bytes
font_01_sfnt_off000258b4.bin
d199bada036368931f65e9a10c7eae1297d8619e5e32eefa85f31acbaa0ecb49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x258B4 14492 bytes
font_02_sfnt_off00028609.bin
a7a45b6d8c1fc2df844000518787560f22daad9ce38eff6cad47109c643156c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28609 14532 bytes
font_03_sfnt_off0002b0f7.bin
8a6cbb38c98d02ea53b8a60e13890863f9d91ef7567533d4c62236c077e1e19e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B0F7 7340 bytes
font_04_sfnt_off0002c691.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C691 6084 bytes
font_05_sfnt_off0002d626.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D626 3752 bytes

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