Malicious PDF — malware analysis report

Static analysis result for SHA-256 d61517e3ba22a480…

MALICIOUS

PDF

185.5 KB Created: 2015-07-24 04:39:19 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: d87f69761ef332e938ee8b3c478fe568 SHA-1: ab321b90a5aa7121abee99dbed86bcf233511a25 SHA-256: d61517e3ba22a4800d86dea3cea3c9626b4cc35dffde00ca9842a4f218b7683b
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. The embedded URL is the primary indicator of malicious intent, likely serving as a lure for phishing or malware distribution.

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%BB%D0%B8%D1%86%D0%B5%D0%BD%D0%B7%D0%B8%D0%BE%D0%BD%D0%BD%D1%8B%D0%B9+%D0%BA%D0%BB%D1%8E%D1%87+%D0%B4%D0%BB%D1%8F+photoshop+cs6&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184457_spravka_o_srednem_zarabotke_dlya_centra_zanyatosti_blank_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186235_windows_xp_sp3_zver_2013_skachat_torrent_besplatno_32_bit.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184499_scenariy_zakruytiya_spartakiaduy.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a76b.bin
44ff5f6639b941c28a72d21b5f3a470697f7694e53b7a3e4913331fc7c387436		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A76B 7224 bytes
font_00_sfnt_off00024040.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24040 3556 bytes
font_01_sfnt_off00024dc3.bin
793459cd4d9f47c9f794e5e594340b809a6a17c45208d9b5be650a26dd3d4d9e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24DC3 14932 bytes
font_02_sfnt_off00027c3e.bin
17437a52d7388c511ca515323be0361da7c750d2ebb29ea104358066f72daf1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C3E 14680 bytes
font_04_sfnt_off0002bc65.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC65 6084 bytes
font_05_sfnt_off0002cbfa.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CBFA 3752 bytes

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