Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f3529070376563a…

MALICIOUS

PDF

369.4 KB Created: 2015-08-29 11:23:13 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: bf74711a476cce26680e427123929c78 SHA-1: 29765d8bc199323c1a08a28d5b496e106509e920 SHA-256: 2f3529070376563a6158917679d01b5bc923e31b6af3195500c612986f7dbbb8
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, botcraftman.ru, which is likely intended to deliver a second-stage payload or phish for credentials. The document body, though heavily obfuscated, contains text related to software downloads, reinforcing the lure. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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=portable+adobe+photoshop+cc+2015+152&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4829/4829826_programma__dlya__sozdaniya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830139_sarafanuy__i__dlinnuye_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4829/4829899_vsco__film__05_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057463.bin
a9104a92222d0e5f34fa47733958707b8d80ac74bde83c18214c290913251221		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57463 9424 bytes
font_01_sfnt_off00058f50.bin
7dc8e8af839ab100a262837cdd8242ea222dbe6b9bae3cceb7278bd60cdad294		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58F50 18440 bytes

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