Malicious PDF — malware analysis report

Static analysis result for SHA-256 14d9a8b4259e7ed1…

MALICIOUS

PDF

183.7 KB Created: 2015-07-25 12:27:54 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ff4a227d2b188feb23a3d96cfb81c999 SHA-1: 60d2230730a8ad7eebb04408680b56d3172dfe08 SHA-256: 14d9a8b4259e7ed19c52e3246f7583b0f51b57208dff54d591ff5ce0b1381508
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, is likely part of a phishing or malware distribution chain. The ML classifier also strongly indicated maliciousness.

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%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+freedom+%D0%B4%D0%BB%D1%8F+ios&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4197/4197465_ct_po_biologii_2015_onlayn.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4199/4199395_bot_na_zatochku_interlude.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4204/4204374_kak_sdelat_rayskuyu_zazhigalku_v_maynkraft.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_off0002a183.bin
16aba3934cf5ab7dbf5692ab1d90c8d99600f5d794a77013932acafe6b464ea7		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A183 6788 bytes
font_00_sfnt_off00023a67.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23A67 3556 bytes
font_01_sfnt_off000247ea.bin
459f21e64c4129f1c4b0c8587b8dba014e6faeb29530386b63b59ac56f882051		 pdf-font-stream PDF embedded font (sfnt) at offset 0x247EA 14720 bytes
font_02_sfnt_off00027606.bin
388d89659d86b66fd433681e12533e30579bc3ef9ff4bb3179d06e0155ebdcb0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27606 14732 bytes
font_04_sfnt_off0002b513.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B513 6084 bytes
font_05_sfnt_off0002c4a8.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C4A8 3752 bytes

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