Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c3d7ab78746ff8b…

MALICIOUS

PDF

361.0 KB Created: 2015-08-20 08:48:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 4170eca9906f39364d2a2ed13aadcfe7 SHA-1: 71bf4886711700ef5d34c94fdba81e7491c20d1e SHA-256: 2c3d7ab78746ff8ba41f935b3c42826f07f32dac3a607e39c0d951013ce383fa
60 Risk Score

Malware Insights

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

The PDF file was flagged as a malicious redirector due to the presence of a link to botcraftman.ru. This URL is likely used to direct users to malicious content. No scripts were extracted, and the document body was heavily obfuscated, preventing further analysis of the specific lure. The file's creation application, wkhtmltopdf, is not inherently malicious but can be used to generate malicious PDFs.

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=school+13+%D0%B8%D0%B3%D1%80%D0%BE%D0%BE%D1%80%D0%B3%D0%B8%D0%B8+%D0%B2%D1%81%D0%B5+%D1%81%D0%B5%D1%80%D0%B8%D0%B8+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639137_dnevniki_po_letney_praktike_v_detskom_sadu.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639005_planirovanie_po_matematike_4_klass_fgos_shkola_rossii_s_uud.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4638/4638939_polnaya_russkaya_povarennaya_kniga_anarhista_2003_skachat.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055aeb.bin
edda6a8a35a486086f3b0c4edf07dd793b6eb431445e525cbe0539cf91a495a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55AEB 9140 bytes
font_01_sfnt_off0005747b.bin
ad3987b411540ae17d46b17ea74df0ab51604ec75e18579ba0cbb50a33d8d208		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5747B 15332 bytes

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