Malicious PDF — malware analysis report

Static analysis result for SHA-256 74e7da212f2f6c36…

MALICIOUS

PDF

186.4 KB Created: 2015-07-24 03:55:02 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a1a03854d570d2eba273c89a8914174c SHA-1: 57b90c7c5d345b96f1fd3be32324588a5b6e15a2 SHA-256: 74e7da212f2f6c3643a7bdb7c3faf277a278335ceb273b7249d7ee11d29f65d9
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a machine learning classifier and contains a link to a known malicious redirector. This indicates the document is likely part of a phishing or malware distribution campaign. The embedded URL is the primary 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%A1%D0%B8%D0%B3%D0%BD%D0%B0%D0%BB%D0%B8%D0%B7%D0%B0%D1%86%D0%B8%D1%8F+cenmax+super+2+way+%D0%B8%D0%BD%D1%81%D1%82%D1%80%D1%83%D0%BA%D1%86%D0%B8%D1%8F&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185217_skachat_pesnyu_macklemore.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185276_bolshaya_raznica_skachat_besplatno_vse_vuypuski_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184322_the_klub_17_rusifikator.pdf
    • http://www.microsoft.com/typography/fonts/You
    • http://www.microsoft.com/typography/fonts/

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a9a6.bin
85d8ea261e992d048a1a3130edc505aad12437747fa49e0925905fc0e612b3ef		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A9A6 7516 bytes
font_00_sfnt_off00024216.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24216 3556 bytes
font_01_sfnt_off00024f99.bin
51d67931bc72e826038242d7a0d405d9b1778c7b85ed284a1697c1ce5c74a1e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F99 15160 bytes
font_02_sfnt_off00027e0b.bin
5499dff54fd8a564ba4cb6b5da8ca3b261a23e9ee324500a6abe16fe11159b41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E0B 14768 bytes
font_04_sfnt_off0002bfc6.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BFC6 6084 bytes
font_05_sfnt_off0002cf5b.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF5B 3752 bytes

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