Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d6175a251db6f29…

MALICIOUS

PDF

185.6 KB Created: 2015-07-23 20:31:14 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 97414be3e3a7e52aa5d64392aef13aa5 SHA-1: 2c61242799d3c2b4f519c103ab0d67e217b2a432 SHA-256: 1d6175a251db6f2977c7be7d956b8d87dc2ec7adb7beb7d029e1a4fffcbe9c5e
90 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 URL, indicating a phishing or malware distribution attempt. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the presence of the malicious URL is sufficient evidence for the attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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=%D0%BA%D0%B0%D1%82%D1%8F+%D1%81%D0%B0%D0%BC%D0%B1%D1%83%D0%BA%D0%B0+%D1%84%D0%B8%D0%BB%D1%8C%D0%BC+%D0%B3%D0%BB%D1%83%D0%B1%D0%BE%D0%BA%D0%BE%D0%B5+%D0%BE%D1%82%D0%B2%D0%B5%D1%80%D1%81%D1%82%D0%B8%D0%B5+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184487_skachat_chituy_na_tanki_onlayn_na_kristalluy_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183174_kursovoy_proekt_po_arhitekture_mnogoyetazhnuyy_zhiloy_dom.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184363_obuchayuschie_multfilmuy_dlya_detey_34_let_skachat_s_torrenta.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002438e.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2438E 3556 bytes
font_01_sfnt_off00025111.bin
621d0390b86cac5217db0fb3540c11eb3442276a2530c68b4a87059a28b1b3aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25111 13960 bytes
font_02_sfnt_off00027d38.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D38 14468 bytes
font_03_sfnt_off0002a7eb.bin
4e7f4458871de0082a5d8c3473a2f42dcdb77491d83b484ac3a1521c9f35f75e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A7EB 7076 bytes
font_04_sfnt_off0002bc7a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC7A 6084 bytes
font_05_sfnt_off0002cc0f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC0F 3752 bytes

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