Malicious PDF — malware analysis report

Static analysis result for SHA-256 483501bf1388af43…

MALICIOUS

PDF

345.8 KB Created: 2015-08-21 09:22:08 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 6c35296f630b5759e731bc00b6dbfd67 SHA-1: 684be0532b4f4810fcec78edcecb991a92a0b8d2 SHA-256: 483501bf1388af4387ce1c795609e8d5ee410938111c2869500541b3615883e9
128 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript and a critical heuristic firing for a malicious redirector link pointing to 'http://botcraftman.ru/'. This indicates the file is designed to redirect users to a potentially harmful website. The ClamAV detection 'Pdf.Dropper.Agent-8796084-0' further supports its malicious nature, suggesting it acts as a dropper for other malware.

Heuristics 4

  • 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.
  • ClamAV: Pdf.Dropper.Agent-8796084-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8796084-0
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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%80%D0%B5%D1%87%D1%8C+%D0%B4%D0%BB%D1%8F+%D0%B7%D0%B0%D1%89%D0%B8%D1%82%D1%8B+%D0%B4%D0%B8%D0%BF%D0%BB%D0%BE%D0%BC%D0%B0+%D0%BE%D0%B1%D1%80%D0%B0%D0%B7%D0%B5%D1%86&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654682_skachat_programmu_torrent_3x_speed.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654753_skachat_igru_left_4_dead_3_cherez_torrent_licenziya.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654803_devushka_davit_krolika.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000523d5.bin
7bc5edd3dda10507fd5e0d341480f5a137d3111690d904ef9b018b8a14dfc675		 pdf-font-stream PDF embedded font (sfnt) at offset 0x523D5 8052 bytes
font_01_sfnt_off00053ac5.bin
740d499f3af0a4737459fa0dd9f2b32880bab5626686349aad8493ff0a87f5ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53AC5 14792 bytes

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