Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2c2a0d937737193…

MALICIOUS

PDF

368.8 KB Created: 2015-08-21 09:28:09 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: e974ef29fe9c28db381a1992f95ec899 SHA-1: 30f3e740f1b25fa9307ca1da3b21a6f4a036b1a3 SHA-256: e2c2a0d9377371938607ed54939078f31ae529c289e9ac0b8ff1ee45890a797c
92 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful website. The ML classifier also flagged this PDF with high confidence. No scripts were extracted from this sample, but the presence of the malicious URL is sufficient evidence for this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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%82%D0%B5%D1%85%D0%BD%D0%BE%D0%BB%D0%BE%D0%B3%D0%B8%D1%8F+2+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D1%80%D0%BE%D0%B3%D0%BE%D0%B2%D1%86%D0%B5%D0%B2%D0%B0+%D1%8D%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BD%D0%BD%D0%BE%D0%B5+%D0%BF%D1%80%D0%B8%D0%BB%D0%BE%D0%B6%D0%B5%D0%BD%D0%B8%D0%B5+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654890_prohozhdenie_igruy_stalker_narodnaya_solyanka_2015.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654777_rezultatuy_egye_po_istorii_2015_orenburgskaya_oblast.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654855_skachat_serial_ulicuy_razbituyh_fonarey_1_sezon_cherez_torrent.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057965.bin
c6bf28fc24f0afa138f78f3d5e446c5e838725a6ba65fb87de79c7d343df3b86		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57965 10880 bytes
font_01_sfnt_off00059832.bin
168fdf581b1409df739978f98f949fe4ae636cc7c00afdae62c1ab68ae36be29		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59832 13740 bytes

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