Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0a0ccad9178e00e…

MALICIOUS

PDF

188.4 KB Created: 2015-07-24 11:55:37 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 1065a73d3d89cde88803f0cde4a846c9 SHA-1: f0f4ab59626b622c479207c7989874d7490ea25a SHA-256: b0a0ccad9178e00e700a38c486f75ff069b24bb0dfda5a3922537c8c2d752ed0
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also strongly flagged this PDF as malicious. The primary malicious IOC is the redirector URL, which is likely used to deliver a secondary payload or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%98%D0%BD%D1%81%D1%82%D1%80%D1%83%D0%BA%D1%86%D0%B8%D1%8F+%D0%BF%D0%BE+%D0%BE%D1%85%D1%80%D0%B0%D0%BD%D0%B5+%D1%82%D1%80%D1%83%D0%B4%D0%B0+%D0%B4%D0%BB%D1%8F+%D1%85%D1%83%D0%B4%D0%BE%D0%B6%D0%B5%D1%81%D1%82%D0%B2%D0%B5%D0%BD%D0%BD%D0%BE%D0%B3%D0%BE+%D1%80%D1%83%D0%BA%D0%BE%D0%B2%D0%BE%D0%B4%D0%B8%D1%82%D0%B5%D0%BB%D1%8F&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188743_skachat_besplatno_drayvera_dlya_printera_hp_laserjet_1020.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191776_skachat_mirazh_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185056_obrazec_akta_o_zamene_spidometra.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024d18.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D18 3556 bytes
font_01_sfnt_off00025a9b.bin
a52db1481e17886027fe6310f9aec01f3d481c85383c55b4669687651e886e51		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25A9B 15108 bytes
font_02_sfnt_off0002892d.bin
025452afb5be3c847a34c6c843f5a2af627756a14d418d3ef06ce81a73e8da96		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2892D 14532 bytes
font_03_sfnt_off0002b41e.bin
8b48adc99abccf98139be67f34cd256b62d17ac3c28c72bb50d6234f03b4735b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B41E 6816 bytes
font_04_sfnt_off0002c7bf.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C7BF 6084 bytes
font_05_sfnt_off0002d754.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D754 3752 bytes

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