Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7d3f8b410c072e8…

MALICIOUS

PDF

186.3 KB Created: 2015-07-30 01:04:54 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 3658970e6a37861c2e779fcf293dfd93 SHA-1: 9ea30e0c82e2424e8050ca102a61270544b4b242 SHA-256: d7d3f8b410c072e8a931908254e98eeb7e72e0846946f10884451071b9d62190
150 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 site. The ML classifier and ClamAV detection strongly support this malicious classification. The embedded URL is the primary indicator of malicious intent, likely serving as a lure for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7524017-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7524017-0
  • 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=lozpes+patch+2015+v14+%D0%B4%D0%BB%D1%8F+pes+2015+%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://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4225/4225885_gluhovskiy_buduschee_skachat_fb2.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4241/4241621_blokadahack_v_101.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4241/4241523_koduy_okvyed_2015_s_rasshifrovkoy.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a87e.bin
0d857e582631fa3e1c6ab7650d5adb6f8dc4758a8e534ac2b12030bc808c457b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A87E 7704 bytes
font_00_sfnt_off00023fb6.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23FB6 3556 bytes
font_01_sfnt_off00024d39.bin
37fb7745807526f0f13ebbceb39289f5fa69f88f7f26e83846cc6577097bab3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D39 15452 bytes
font_02_sfnt_off00027c5d.bin
0b9684b03f1ac340a31ecbf8a36ced465ecf0412fca39b396ab82e237adb2827		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C5D 14956 bytes
font_04_sfnt_off0002bf5b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF5B 6084 bytes
font_05_sfnt_off0002cef0.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CEF0 3752 bytes

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