Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5fdda9b99abae22…

MALICIOUS

PDF

184.5 KB Created: 2015-07-27 10:15:47 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2726216dbba582f3ca14f12b9b1c129d SHA-1: bde081a642a07db8379410e24c76720a245de502 SHA-256: d5fdda9b99abae223fe1a65ed0e57e0bf508ce1cf6147065454f689bc1c8eaf2
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site.

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=%D1%81%D1%86%D0%B5%D0%BD%D0%B0%D1%80%D0%B8%D0%B9+%D0%BA%D0%BE%D0%BD%D0%BA%D1%83%D1%80%D1%81%D0%B0+%D0%BC%D0%B8%D0%BD%D1%83%D1%82%D0%B0+%D1%81%D0%BB%D0%B0%D0%B2%D1%8B&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190725_adobe_premiere_pro_32_bit_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4208/4208234_skachat_gta_5_na_kompyuter.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4198/4198863_my_little_pony_in_the_sims_skachat_igru.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000240bf.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x240BF 3556 bytes
font_01_sfnt_off00024e42.bin
c2c45bf8c6d105cde1fe292c3c433de4e5da39627629d3d9b04c016e42d7e186		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E42 14012 bytes
font_02_sfnt_off00027a88.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27A88 14468 bytes
font_03_sfnt_off0002a53b.bin
ea42a83d0908ca7ebf0b7a1a088a39d46a536bca521c35ccea688c388806c732		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A53B 6676 bytes
font_04_sfnt_off0002b860.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B860 6084 bytes
font_05_sfnt_off0002c7f5.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C7F5 3752 bytes

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