Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff180d9418308e63…

MALICIOUS

PDF

185.7 KB Created: 2015-08-05 13:39:18 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: aeb9ad9d2dabd9c3b6bfd4759a9c25fc SHA-1: 6ddc37e2e4c44aa36c2594ee1f354c8041666061 SHA-256: ff180d9418308e63d2f78dc9155dbf99a0fe49a23569415d80cec12a0c25bb25
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector infrastructure. The embedded URL `http://botcraftman.ru/?lip&keyword=%D0%BF%D0%BE%D1%82%D0%B5%D1%80%D1%8F%D0%BD%D0%BD%D1%8B%D0%B9+%D1%8D%D0%BB%D1%8C%D1%84+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8` is the primary indicator of malicious intent. No scripts were extracted, and the document body was not sufficiently readable to determine a specific lure.

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%BF%D0%BE%D1%82%D0%B5%D1%80%D1%8F%D0%BD%D0%BD%D1%8B%D0%B9+%D1%8D%D0%BB%D1%8C%D1%84+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304509_kak_napisat_zayavlenie_ob_uvolnenii_obrazec.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304443_skachat_leps_samuyy_luchshiy_den.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304544_prohozhdenie_nyensi_dryu_zapiski_chernoy_koshki.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002441e.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2441E 3556 bytes
font_01_sfnt_off000251a1.bin
82ac3b8bed2a023652d5a65f6d403bb461fd3393ab74bb26f0f104fb1777a1b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x251A1 14388 bytes
font_02_sfnt_off00027eac.bin
2faf238a7982558102f008fa2e03cbd823800727545a7f10afda32250c8cbf2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27EAC 14468 bytes
font_03_sfnt_off0002a95f.bin
e36900f0be74cb6440bfe6101bd4e1a51c9c1f031f5748b5b157c8bab6c98839		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A95F 6772 bytes
font_04_sfnt_off0002bcd9.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BCD9 6084 bytes
font_05_sfnt_off0002cc6e.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC6E 3752 bytes

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