Malicious PDF — malware analysis report

Static analysis result for SHA-256 1235673fee680703…

MALICIOUS

PDF

184.4 KB Created: 2015-08-08 11:39:30 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 5b441e7ab9d9e892ea0f35742023929c SHA-1: 94920c44fe27e5e8e6b03ba2438327c296d70d65 SHA-256: 1235673fee680703b26d1525646bc1c2bd428817f4ef60c3b709fe31a278b1d4
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. This suggests the document is designed to lure users to a malicious website, likely for phishing or malware delivery. No scripts were extracted, but the presence of a malicious URL is a strong indicator of malicious intent.

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%A3%D0%B7%D0%B1%D0%B5%D0%BA%D1%87%D0%B0+%D0%BA%D1%83%D1%88%D0%B8%D0%BA%D0%BB%D0%B0%D1%80+mp3&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383956_torrent_mmn.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385529_sgm_20_geonezis_addon_misery_sborka_ot_tsv_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384126_skachat_besplatno_pesnyu_gamora_romashki.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023c37.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23C37 3556 bytes
font_01_sfnt_off000249ba.bin
67733bdf1ef3dfd5b063df42a7f3d17ace731440a862b4bde145bf3e197421b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x249BA 15516 bytes
font_02_sfnt_off000279c1.bin
48fecc5a6f3c233cc70d669abfd768ddaaab985cf5c8545f9a236b7d27e584b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x279C1 14688 bytes
font_03_sfnt_off0002a508.bin
58d3b3d588798ddb9663578d8aa6d181509d9789bb7a4d842dc0a9d1f014e42a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A508 6556 bytes
font_04_sfnt_off0002b7a5.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B7A5 6084 bytes
font_05_sfnt_off0002c73a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C73A 3752 bytes

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