Malicious PDF — malware analysis report

Static analysis result for SHA-256 04368fe2c94bd8b3…

MALICIOUS

PDF

187.1 KB Created: 2015-07-24 11:36:44 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2aaf6a637bae7125dfd76a12be73fa6f SHA-1: ec6eecdc5cabb66dca0be225445f58a792538658 SHA-256: 04368fe2c94bd8b3877c78eec9d8c0b2ac427a4da8dba1fa8ab2145075a69a3f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains an embedded URL that is flagged as a known malicious redirector. This indicates an attempt to lure the user to a malicious site, likely for phishing or to download further malware. No scripts were extracted, but the presence of a malicious redirector 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%9A%D0%BB%D1%8E%D1%87+%D0%B0%D0%BA%D1%82%D0%B8%D0%B2%D0%B0%D1%86%D0%B8%D0%B8+%D0%B4%D0%BB%D1%8F+movavi+video+suite+11+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%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://img0.liveinternet.ru/images/attach/c/5//4186/4186756_rezultatuy_egye_po_matematike_2015_primorskiy_kray.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185481_ramki_eskd_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191291_acdsee_pro_51_build_137_final_rus_skachat_klyuchi.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_off0002ab65.bin
6bbb00d05ae240efd29912502adea6c8f8d4d9a0ab3dbdf9ef561dcf36a00b7f		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2AB65 7840 bytes
font_00_sfnt_off00024478.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24478 3556 bytes
font_01_sfnt_off000251fb.bin
8aed21b36d18810379fc351482fe1f42dda758082114c4415c29ab8d2d797398		 pdf-font-stream PDF embedded font (sfnt) at offset 0x251FB 14648 bytes
font_02_sfnt_off00027faa.bin
6fa095385e4e2b4baaac9171896cd4bb159683a0fd039c3b609a2dbd57713f56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27FAA 14792 bytes
font_04_sfnt_off0002c28f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C28F 6084 bytes
font_05_sfnt_off0002d224.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D224 3752 bytes

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