Malicious PDF — malware analysis report

Static analysis result for SHA-256 051082288a31ffc9…

MALICIOUS

PDF

360.9 KB Created: 2015-08-20 07:25:46 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 023d2482fc2ff20ae6945148753244bb SHA-1: a26940494bc77a555e4600b6112037b23d509c29 SHA-256: 051082288a31ffc98a13b55744c31504faf60f360ad281bbebc2d2a04e97156b
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded URL that points to a known malicious redirector. This indicates an attempt to lure the user to a harmful site, likely for phishing or to download further malware. While no scripts were explicitly extracted, the PDF structure and the malicious redirector strongly suggest an attack pattern involving user redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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=paint+tool+sai+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4638/4638924_skachat_hard_time_na_russkom_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4638/4638939_polnaya_russkaya_povarennaya_kniga_anarhista_2003_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4638/4638808_schaste_feride_skachat_besplatno_kniga.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055ba0.bin
562021935a62bd6a45332be3651248ae864b5cafa40ef4d545ec8e795b1ff640		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55BA0 9116 bytes
font_01_sfnt_off00057527.bin
b6c9255fe263586777190972ad0b8be81d94c195c0e8027b027fa99a3870f908		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57527 15424 bytes

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