Malicious PDF — malware analysis report

Static analysis result for SHA-256 b88a4ecf6b3617a8…

MALICIOUS

PDF

366.3 KB Created: 2015-08-21 09:21:02 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 7d60d1cd37846523bfe2aa9075d03e73 SHA-1: cbe8bf19072ca043a80b9747ce4d6ac8c7209e1d SHA-256: b88a4ecf6b3617a867e23dbebe5f78c82e447b3b0f93a9c983c0b025967cf375
60 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a link to a known malicious redirector. This suggests the document is designed to lure users to a potentially harmful website. No scripts were extracted, and the document body was heavily truncated, limiting further analysis of the specific lure. The primary IOC is the malicious redirector URL.

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+%D1%82%D0%BE%D0%B2%D0%B0%D1%80%D0%BD%D1%83%D1%8E+%D0%BD%D0%B0%D0%BA%D0%BB%D0%B0%D0%B4%D0%BD%D1%83%D1%8E+%D1%82%D0%BE%D1%80%D0%B3-12+%D0%B2+%D0%B2%D0%BE%D1%80%D0%B4%D0%B5+%D0%BD%D0%B0+%D0%BE%D0%B4%D0%BD%D0%BE%D0%BC+%D0%BB%D0%B8%D1%81%D1%82%D0%B5&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654751_onlayn_bot_dlya_sluysh_cho.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654782_skachat_serial_otryad_2_sezon_cherez_torrent_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654759_shellexecuteex_sboy_kod_1155.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000571bc.bin
638e64f0c556b00d6f76c532b632e21f62412514816ad6a70c2cb91f38e82019		 pdf-font-stream PDF embedded font (sfnt) at offset 0x571BC 8604 bytes
font_01_sfnt_off00058aef.bin
ff132732fe0533a592cbe69698e6d44301cbf848da933fe89b5a124c66d867d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58AEF 14956 bytes

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